Measurement of Gases where Density Changes COMPILED BY HENRY P. WESTCOTT Member A. S. M. E. - and Natural Gas Association Price Fifty Cents PUBLISHED BY METRIC METAL WORKS ERIE, PENN'A. U.S.A. ' win*"** COPYRIGHTED BY METRIC METAL WORKS ERIE, PA. w\_nr\o |HE measurement of natural gas by meter, where the density changes, seems to present so many puz/.ling questions to the man just entering the gas industry, that we have thought it might be helpful to give, in as simple terms as possible, and in so far as we are able, a com- plete explanation of the matter. Having always made it a point in our business policy to be helpful to the gas trade along scientific lines, as well as to manufacture and sell gas meters, our opinion is naturally sought on many points per- taining to the gas business by those who have had little or no experience. On the particular "question of gas measurement, where the density changes, we receive a great many inquiries, and in defense of this article, can best illustrate by quoting extracts of letters actually received as follows : "For information you will please advise me on a few points in regard to your meters. Would a meter working under a pressure of less than fifty pounds, say twenty pounds, give the true amount of gas registered, or would the meter reading have to be multiplied by some number to arrive at the true amount of gas passing through it? Say that the dial of the meter shows 60,000 cu. ft., and the average pressure was 15 pounds for the twenty-four hours, what should the reading be if not taken as shown by the meter?" "We have on our gas lease a meter delivering gas to a farmer, and my understanding is that under the pressure at the wells, viz., 45 pounds, we are delivering more gas than the meter shows. Will you kindly advise me what multiplier table should be used with the meter as shown above?" "I have a small gas plant and am purchasing natural gas from a pipe line which pipes gas from West Virginia. All along, and up to the present time, my bills, from them have been more than double the total readings of my meters. The Gas -using a multiple basis in computing my bills and this nearly doubles the consumption of gas used as shown by my meters. I need some help in this matter and kindly ask that you give me what information you can as to the trouble in my case." Of course the above inquiries show a lack of knowledge of the business due to inexperience, and in answering them, together with hundreds like them, we have had to give a detailed explanation of the question of gas density. The "Rock Pressure" of gas wells varies according to the depth of the well and the length of time the well has been drilled; likewise the pressure of the flowing gas in pipe lines, meters, regulators, and gates is extremely variable, and on account of this variation in pressure, it was found necessary to establish some basis on which to sell and buy natural gas. Some years ago Mr. F. H. Oliphant, at that time of the United States Geological Survey, considered as a basis of natural gas measurement a pressure of 14.65 pounds per square inch absolute, and a temperature of 60 degrees fahr., and since then it has become customary for natural gas men to refer their gas measurements to this basis. A pressure of 14.65 pounds per square inch is 4 ounces above the assumed atmospheric pressure of 14.4 pounds per square inch, the latter being the average at about the elevation of the Great Lakes, which elevation was considered fairly representing that of most gas fields. At 4-ounce pressure a cubic foot of gas is made up of a certain number of atoms. In order to increase the pressure in a cubic foot of gas confined into a like space, it is neces- sary to force into that space more gas or more atoms of gas. If a sufficient amount of gas is forced into the confined space, originally holding a cubic foot of gas at 4-ounce pressure, to create 15 pounds pressure, there will then be twice as much gas, or twice as many atoms of gas confined in the same space. To illustrate, take a cylinder of proper diameter to contain one cubic foot of space for each foot in length fitted with a tight plunger. / CU. FT. 2 CU. /-7T If the plunger in the cylinder is placed at the one-foot mark and enough gas forced into the space to create a pres- sure of fifteen pounds, it could be said that the cylinder contained one cubic foot of 15-pound gas. Then if the plunger is withdrawn until it rests at the two-foot mark the gas will expand and the pressure will drop to four ounces and the actual volume contained in the space will be two cubic feet. In other words, by multiplying the cubic con- tents in the first cylinder by 2 it will give the actual amount of 4-ounce gas in cubic feet. As all gas meters in the factory are tested and corrected to a low pressure basis, measuring gas by displacement, they may be compared to the cylinder with the plunger as illus- trated above. In measuring gas in the meter, the diaphragms contain just so much space. If the pressure of the gas con- fined in each quantity or volume of gas measured by the diaphragms filling and discharging is four ounces, then the meter reading needs no correction; but each time the meter diaphragm fills and discharges a volume of gas at a higher pressure than four ounces, the meter reading must be cor- rected by applying a multiplier, to reduce the volume of gas measured to a four-ounce basis; and the higher the pressure the greater will be the density of the gas and the greater the number of atoms contained in each cubic foot of space. A factory meter measuring gas at a low pressure will only measure accurately a volume of low-pressure gas up to its rated capacity in cubic feet, while a field or high-pressure meter will measure accurately a volume of low-pressure gas at a high pressure far in excess of the rated capacity of the meter, entirely dependent upon the pressure. For example, a 10,000 cubic foot per hour, large capacity meter will meas- ure accurately as follows : Meter Reading Pressure Pounds per Square Inch Multiplier Actual Amount of Low Pressure Gas Measured 10,000 .25 1.0000 10,000 10,000 100.00 7.8088 78,088 10,000 200.00 14.6348 146,348 The above figures are given under the assumption that the meter is working up to its maximum capacity, or 10,000 cubic feet per hour meter reading. To determine the proper-sized meter to measure any volume the following rule is followed : Divide the volume of gas to be measured per hour by the multiplier or density at which the gas is to be measured and it will give the meter reading for which to select the proper-sized meter. Example: If it is desired to measure 146,348 cubic feet of low-pressure gas per hour at a pressure of 200 pounds 146,348-14.6348=10,000 cubic feet per hour meter read- ing. The multipliers for density are based on Boyle's law written in 1660, that the "volume of a gas varies inversely as the pressure." While the 4-ounce basis is generally accepted when no other pressure basis is stated in a buying and selling agree- ment, some other basis can be used and very often is used, particularly when gas is being bought or sold in large volumes in the field. Formula for Determining the Quantity of Natural Gas When Measured Above Normal Pressure In which Q=cubic feet required. g =cubic feet shown by the meter. P == S au S e pressure in pounds. h ^atmospheric pressure of 14.4 pounds. 0.25=4-ounce pressure reduced to pounds. By substituting the known values in the above it be- comes p +14.4 14.65 For Example: Suppose the meter or q reads 1,000 cubic feet and the pressure p shows 32^2 pounds to the square inch , required to find the quantity of gas at a pressure of four ounces. Then 32 5+ 14 4 0-1,000 - =3.2013 x 1000=3,201.3 14.65 The result is therefore 3201.3 cubic feet at the standard pressure of four ounces to the square inch. In the following pages we are pleased to give a set of multiplying tables for gas measured at different pressure bases, each table based on some specific pressure taken as a standard and understood in the contract between buyer and seller. In compiling the multipliers, we have taken atmos- pheric pressure (which does not show on the gauge) at 14.4 pounds, same being the average atmospheric pressure in the natural gas fields, and temperature of 60 degrees fahr. Usually no correction is made for change in temperature as 60 degrees fahr. represents an average temperature through- out the year. Multipliers for Reducing Gas or Air Volumes or Meter Readings to a Pressure Base of Atmospheric Pressure GAUGE PRESSURE Inches of Mercury Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 25 .14787 17 2.18055 60 5.16666 24 .18196 18 2.25000 61 5.23611 23 .21604 19 2.31944 62 5.30555 22 .25013 63 5.37500 21 .28421 20 2.38888 64 5.44444 20 .31828 21 2.45833 65 5.51388 19 .35238 22 2.52777 66 5.58333 18 .38647 23 2.59722 67 5.65277 17 .42055 24 2.66666 68 5.72222 16 .45464 25 2.73611 69 5.79166 26 2.80555 15 .48872 27 2.87500 70 5.86111 14 .52281 28 2.94444 71 5.93055 13 .55689 29 3.01388 72 6.00000 12 .59098 73 6.06944 11 10 - 9 8 7 - 6 .62506 .65915 .69323 .72732 .76140 .79549 30 31 32 33 34 35 3.08333 3.15277 3.22222 3.29166 3.36111 3.43055 74 75 76 77 78 79 6.13888 6.20833 6.27777 6.34722 6.41666 6.48611 5 - 4 .82957 .86366 36 37 QQ 3^56944 Q fiQGGQ 80 81 6.55555 6.62500 - 3 2 .89774 .93183 GO 39 O.DOOOO 3.70833 82 83 6.69444 6.76388 i .96591 84 6.83333 Atmos. 1.00000 40 3.77777 85 6.90277 * o .o4 ( && 86 6.97222 Lb. per Sq. In. 42 43 3.91666 3.98611 87 88 7.04166 7.11111 1 1.06944 44 4.05555 89 7. 18055 2 1.13888 45 4.12500 3 1.20833 46 4.19444 90 7.25000 4 1.27777 47 4.26388 91 7.31944 5 1.34722 48 4.33333 92 7.38888 6 1.41666 49 4.40277 93 7.45833 7 1.48611 94 7.52777 8 1.55555 50 4.47222 95 7.59722 9 1.62500 51 4.54166 96 7.66666 52 4.61111 97 7.73611 10 1.69444 53 4.68055 98 7.80555 11 1.76388 54 4.75000 99 7.87500 12 1.83333 55 4.81944 13 1.90277 56 4.88888 100 7.94444 14 1.97222 57 4.95833 101 8.01388 15 2.04166 58 5.02777 102 8.08333 16 2.11111 59 5.09722 103 8.15277 Means "Vacuum" or minus pressure. 8 Atmospheric Pressure Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. 3er Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 104 8.22222 137 10.51388 170 12.80555 105 8.29166 138 10.58333 171 12.87500 106 8.36111 139 10.65277 172 12.94444 107 8.43055 173 13.01388 108 8.50000 140 10.72222 174 13.08333 109 8.56944 141 10.79166 175 13.15277 142 10.86111 176 13.22222 110 8.63888 143 10.93055 177 13.29166 111 8.70833 144 11.00000 178 13.36111 112 8.77777 145 11.06944 179 13.43055 113 8.84722 146 11.13888 114 8.91666 147 11.20833 180 13.50000 115 8.98611 148 11.27777 181 13.56944 116 9.05555 149 11.34722 182 13.63888 117 9.12500 183 13.70833 118 9.91444 150 11.41666 184 13.77777 119 9.26388 151 11.48611 185 13.84722 152 11.55555 186 13.91666 120 9.33333 153 11.62500 187 13.98611 121 9.40277 154 11.69444 188 14.05555 122 9.47222 155 11.76388 189 14.12500 123 9.54166 156 11.83333 124 9.61111 157 11.90277 190 14.19444 125 9.68055 158 11.97222 191 14.26388 126 9.75000 159 12.04166 192 14.33333 127 9.81944 193 14.40277 128 9.88888 160 12.11111 194 14.47222 129 9.95833 161 12.18055 195 14.54166 162 12.25000 196 14.61111 130 10.02777 163 12.31944 197 14.68055 131 10.09722 164 12.38888 198 14.75000 132 10.16666 165 12.45833 199 14.81944 133 10.23611 166 12.52777 134 10.30555 167 12.59722 200 14.88888 135 10.37500 168 12.66666 i 136 10.44444 169 12.73611 Multipliers for Reducing Gas Volumes or Meter Readings to a Pressure Base of 2 Ounces Above Atmospheric Pressure. GAUGE PRESSURE Inches of Mercury Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density -25 .14660 16 2.09294 60 5.12220 -24 .18039 17 2.16178 61 5.19104 -23 .21418 18 2.23063 62 5.25989 -22 .24798 19 2.29948 63 5.32874 -21 .28177 64 5.39759 -20 .31556 20 2.36833 65 5.46643 -19 .34935 21 2.43717 66 5.53528 -18 .38314 22 2.50602 67 5.60413 -17 .41693 23 2.57487 68 5.67297 -16 .45073 24 2.64371 69 5.74182 25 2.71256 -15 .48452 26 2.78141 70 5.81067 -14 .51831 27 2.85025 71 5.87951 -13 .55210 28 2.91910 72 5.94836 -12 .58590 29 2.98795 73 6.01721 -11 .61970 74 6.08605 -10 .65348 30 3.05679 75 6.15490 - 9 .68727 31 3.12564 76 6.22375 - 8 .72107 32 3.19449 77 6.29259 7 .75485 33 3.26333 78 6.36144 - 6 .78865 34 3.33218 79 6.43029 35 3.40103 - 5 .82244 36 3.46987 80 6.49913 - 4 .85623 37 3.53872 81 6.56798 - 3 .89002 38 3.60757 82 6.63683 2 .92381 39 3.67641 83 6.70567 ^ .95760 84 6.77452 Atmos. .99139 40 3.74526 85 6.84337 41 3.81411 86 6.91222 Lb. r> f 42 3.88296 87 6.98106 per Sq. In. 43 3.95180 88 7.04991 2oz. 1.00000 44 4.02065 89 7.11876 1 Ib. 1.06024 45 4.08950 2 1.12908 46 4.15834 90 7.18760 , 3 1.19793 47 4.22719 91 7.25645 4 1.26678 48 4.29604 92 7.32530 5 1.33562 49 4.36488 93 7.39414 6 1.40447 94 7.46299 7 1.47332 50 4.43373 95 7.53184 8 1.54216 51 4.50258 96 7.60068 9 1.61101 52 4.57142 97 7.66953 53 4.64027 98 7.73838 10 1.67986 54 4.70912 99 7.80722 11 1.74870 55 4.77796 12 1.81755 56 4.84681 100 7.87607 13 1.88640 57 4.91566 101 7.94492 14 1.95524 58 4.98450 102 8.01376 15 2.02409 59 5.05335 103 8.08261 Means "Vacuum" or minus pressure. 10 2-Ounce Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 104 8,15146 148 11.18072 191 14.14113 105 8.22030 149 11.24956 192 14.20998 106 8.28915 193 14.27882 107 8.35800 150 11.31841 194 14.34767 108 8.42685 151 11.38726 195 14.41652 109 8.49569 152 11.45611 196 14.48537 153 11.52495 197 14.55421 110 8.56454 154 11.59380 198 14.62306 111 8.63339 155 11.66265 199 14.69191 112 8.70223 156 11.73149 113 8.77108 157 11.80034 200 14.76075 114 8.83993 158 11.86919 201 14.82960 115 8.90877 159 11.93803 202 14.89845 116 8.97762 203 14.96729 117 9.04647 160 12.00688 204 15.03614 118 9.11531 161 12.07573 205 15.10499 119 9.18416 162 12.14457 206 15.17383 163 12.21342 207 15.24268 120 9.25301 164 12.28227 208 15.31153 121 9.32185 165 12.35111 209 15.38037 122 9.39070 166 12.41996 123 9.45955 167 12.48881 210 15.44922 124 9.52839 168 12.55765 211 15.51807 125 9.59724 169 12.62650 212 15.58691 126 9.66609 213 15.65576 127 9.73493 170 12.69535 214 15.72461 128 9.80378 171 12.76419 215 15.79345 129 9.87263 172 12.83304 216 15.86230 173 12.90189 217 15.93115 130 9.94148 174 12.97073 218 16.00000 131 10.01032 175 13.03958 219 16.06884 132 10.07917 176 13.10843 133 10.14802 177 13.17728 220 16.13769 134 10.21686 178 13.24612 221 16.20654 135 10.28571 179 13.31497 222 16.27538 136 10.35456 223 16.34423 137 10.42340 180 13.38382 224 16.41308 138 10.49225 181 13.45266 225 16.48192 139 10.56110 182 13.52151 226 16.55077 183 13.59036 227 16.61962 140 10.62994 184 13.65920 228 16.68846 141 10.69879 185 13.72805 229 16.75731 142 10.76764 186 13.79690 143 10.83648 187 13.86574 230 16.82616 144 10.90533 188 13.93459 231 16.89500 145 10.97418 189 14.00344 232 16.96385 146 11.04302 233 17.03270 147 11.11187 190 14.07228 234 17.10154 11 2-Ounce Multipliers (Con linued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Densit I GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 235 17.17039 279 20.19965 322 23.16006 236 17.23924 323 23.22891 237 17.30808 280 20.26850 324 23.29776 238 17.37693 281 20.33734 325 23.36660 239 17.44578. 282 20.40619 326 23.43545 283 20.47504 327 23.50430 240 17.51462 284 20.54388 328 23.57314 241 17.58347 285 20.61273 329 23.64199 242 17.65232 286 20.68158 243 17.72117 287 20.75043 330 23.71084 244 17.79001 288 20.81927 331 23.77968 245 17.85886 289 20.88812 332 23.84853 246 17.92771 333 23.91738 247 17.99655 290 20.95697 334 23.98623 248 18.06540 291 21.02581 335 24.05507 249 18.13425 292 21.09466 336 24.12392 293 21.16351 337 24.19277 250 18.20309 294 21.23235 338 24.26161 251 18.27194 295 21.30120 339 24.33046 252 18.34079 296 21.37005 253 18.40963 297 21.43889 340 24.39931 254 18.47848 298 21.50774 341 24.46815 255 18.54733 299 21.57659 342 24.53700 256 18.61617 343 24.60585 257 18.68502 300 21.64543 344 24.67469 258 18.75387 301 21.71428 345 24.74354 259 18.82271 302 21.78313 346 24.81239 303 21.85197 347 24.88123 260 18.89156 304 21.92082 348 24.95008 261 18.96041 305 21.98967 349 25.01893 262 19.02925 306 22.05851 263 19.09810 307. 22.12736 350 25.08777 264 19.16695 308 22.19621 351 25.15662 265 19.23580 309 22.26505 352 25.22547 266 19.30464 353 25.29431 267 19.37349 310 22.33390 354 25.36316 268 19.44234 311 22.40275 355 25.43201 269 19.51118 312 22.47160 356 25.50086 313 22.54044 357 25.56970 270 19.58003 314 22.60929 358 25.63855 271 19.64888 315 22.67814 359 25.70740 272 19.71772 316 22.74698 273 19.78657 317 22.81583 360 25.77624 274 19.85542 318 22.88468 361 25.84509 275 19.92426 319 22.95352 362 25.91394 276 19.99311 363 25.98278 277 20.06196 320 23.02237 364 26.05163 278 20.13080 321 23.09122 365 26.12048 12 2-Ounce Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 366 26.18932 411 29.28743 456 32.38554 367 26.25817 412 29.35628 457 32.45438 368 26.32702 413 29.42512 458 32.52323 369 26.39586 414 29.49397 459 32.59208 415 29.56282 370 26.46471 416 29.63166 460 32.66092 371 26.53356 417 29.70051 461 32.72977 372 26.60240 418 29.76936 462 32.79862 373 26.67125 419 29.83820 463 32.86746 374 26.74010 464 32.93631 375 26.80894 420 29.90705 465 33.00516 376 26.87779 421 29.97590 466 33.07400 377 26.94664 422 30.04475 467 33.14285 378 27.01549 423 30.11359 468 33.21170 379 27.08433 424 30.18244 469 33.28055 425 30.25129 380 27.15318 426 30.32013 470 33.34939 381 27.22203 427 30.38898 471 33.41824 382 27.29087 428 30.45783 472 33.48709 383 27.35972 429 30.52667 473 33.55593 384 27.42857 474 33.62478 385 27.49741 430 30.59552 475 33.69363 386 27.56626 431 30.66437 476 33.76247 387 27.63511 432 30.73321 477 33.83132 388 27.70395 433 30.80206 478 33.90017 389 27.77280 434 30.87091 479 33.96901 390 391 392 393 394 27.84165 27.91049 27.97934 28.04819 28.11703 435 436 437 438 439 30.93975 31.00860 31.07745 31.14629 31.21514 480 481 482 483 484 34.03786 34.10671 34.17555 34.24440 34.31325 395 396 397 398 399 28.18588 28.25473 28.32357 28.39242 28.46127 440 441 442 443 444 31.28399 31.35283 31.42168 31.49053 31.55937 485 486 487 488 489 34.38209 34.45094 34.51979 34.58863 34.65748 400 28.53012 445 31.62822 490 34.72633 401 28.59896 446 31.69707 491 34.79518 402 28.66781 447 31.76592 492 34.86402 403 28.73666 448 31.83476 493 34.93287 404 28.80550 449 31.90361 494 35.00172 405 28.87435 495 35.07056 406 28.94320 450 31.97246 496 35.13941 407 29.01204 451 32.04130 497 35.20826 408 29.08089 452 32.11015 498 35.27710 409 29.14974 453 32.17900 499 35.34595 454 32.24784 410 29.21858 455 32.31669 500 35.41480 Multipliers for Reducing Gas Volumes or Meter Readings to a Pressure Base of 4 Ounces Above Atmospheric Pressure. GAUGE PRESSURE Inches of Mercury Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE per Sq. In. Multiplier or Density -25 .14535 8 1.52901 30 3.03071 -24 .17885 83/2 1.56313 303/2 3.06484 -23 .21236 9 1.59726 31 3.09879 -22 .24586 9.^2 1.63139 313^ 3.13310 -21 .27936 32 3.16723 -20 .31287 10 1.66552 32y 2 3.20136 -19 .34637 103/2 1.69965 33 3.23549 -18 .37987 11 1.73378 333/3 3.26962 -17 .41338 113/2 1.76791 34 3.30375 -16 .44688 12 1.80204 343/3 3.33788 123/2 1.83617 -15 .48038 13 1.87030 35 3.37201 -14 .51389 13>3 1.90443 353/2 3.40614 -13 .54739 14 1.93856 36 3.44027 -12 .58090 143-3 1.97269 36>3 3.47440 -11 .61440 37 3.50853 -10 .64790 15 2.00682 373-3 3.54266 - 9 .68141 153-3 2.04095 38 3.57679 - 8 .71491 16 2.07508 383/2" 3.61092 - 7 .74841 16J-3 2.10921 39 3.64505 - 6 .78191 17 " 2.14334 393/3 3.67918 17/-3 2.17747 - 5 .81542 18 2.21160 40 3.71331 - 4 .84892 183-3 2.24573 403/3 3.74744 - 3 .88242 19 2.27986 41 3.78156 - 2 .91593 193-3 2.31399 413-3 3.81569 - 1 .94943 42 3.84982 Atmos. .98293 20 2.34812 423/2 3.88395 T h 203/2 2.38225 43 3.91808 L/D. 21 2.41638 43i/^ 3.95221 per Sq. In. 21>3 2.45051 44 3.98634 OM 1.00000 22 2.48464 4^02047 1.01706 223/2 2.51877 \ 1.05119 23 2.55290 45 4.05460 1J/2 1.08532 23 l / 2 2.58703 453/2 4.08873 2 1.11945 24 2.62116 46 4.12286 2!/2 1.15358 243/2 2.65528 463/2 4.15699 3 1.18771 1 47 4.19112 31/2 1.22184 25 2.68941 471/2 4.22525 4' 1.25597 253/2 2.72354 48 4.25938 43/2 1.29010 26 2.75767 48>3 4.29351 263/ 2 2.79180 49 4.32764 5 1.32423 27 2.82593 49? -u 4.36177 5 l /2 1.35836 27y 2 2.86006 6 1.39249 28 2.89419 50 4.39590 63-2 1.42662 283/9 2.92832 503-3 4.43003 7 1.46075 29 " 2.96245 51 4.46416 73/2 1.49488 293/2 2.99658 5V/2 4.49829 Means "Vacuum" or minus pressure. 14 4-Ounce Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 52 4.53242 74 6.03412 953^ 7.50170 52^ 4.56655 74^ 6.C6825 96 7.53583 53 4.60068 96^ 7.56996 58^ 4.63481 75 6.10238 97 7.60409 54 - 4.66894 75^2 6.13651 97>i 7.63822 54}^ 4.70307 76 6.17064 98 7.67235 76J/2 6.20477 98^ 7.70648 55 4.73720 77 6.23890 99 7.74061 55^ 4.77133 77^ 6.27303 99^ 7.77474 56 4.80546 78 6.30716 56i/i 4.83959 78K 6.34129 100 7.80887 57 4.87372 79 6.37542 101 7.87713 57^ 4.90784 79^ 6.40955 102 7.94539 58 4.94197 103 8.01365 58^ 4.97610 80 6.44368 104 8.08191 59 5.01023 80^ 6.47781 105 8.15107 59J^ 5.04436 81 6.51194 106 8.21843 siy 2 6.54607 107 8.28668 60 5.07849 82 6.58020 108 8.35494 60^ 5.11262 &2y 2 6.61433 109 8.42320 61 5.14675 83 6.64846 61^2 5.18088 83^ 6.68259 110 8.49146 62 5.21501 84 6.71672 111 8.55972 62^ 5.24914 841/2 6.75085 112 8.62798 63 5.28327 113 8.69624 63>i 5.31740 85 6.78498 114 8.76450 64 5.35153 85K' 6.81911 115 8.83276 64^ 5.38566 86 6.85324 116 8.90102 86^ 6.88737 117 8.96928 65 5.41979 87 6.92150 118 9.03754 65^ 5.45392 87^ 6.95563 119 9.10580 66 5.48805 88 6.98976 66^ 5.52218 881/2 7.C2389 120 9.17406 67 5.55631 89 7.05802 121 9.24232 67^ 5.59044 89i/ 2 7.09215 122 9.31058 68 5.62457 123 9.37883 68X2 5.65870 90 7.12627 124 9.44709 69 5.69283 90^ 7.16040 125 9.51535 693/2 5.72696 91 7.19453 126 9.58361 91^ 7.22866 127 9.65187 70 5.76109 92 7.26279 128 9.72013 70i/ 2 5.79522 92y 2 7.29692 129 9.78839 71 5.82935 93 7.33105 71M 5.86348 93^ 7.36518 130 9.85665 72 5.89761 94 7.39931 131 9.92491 72^ 5.93174 94^ 7.43344 132 9.99317 73 5.96587 133 10.06143 73^ 6.00000 95 7.46757 134 10.12969 15 4-Ounce Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 135 10.19795 179 13.20136 222 16.13651 136 10.26621 223 16.20477 137 10.33447 180 13.26962 224 16.27303 138 10.40273 181 13.33788 225 16.34129 139 10.47098 182 13.40614 226 16.40955 183 13.47440 227 16.47781 140 10.53924 184 13.54266 228 16.54607 141 10.60750 185 13.61092 229 16.61433 142 10.67576 186 13.67918 143 10.74402 187 13.74744 230 16.68259 144 10.81228 188 13.81569 231 16.75085 145 10.88054 189 13.88395 232 16.81911 146 10.94880 233 16.88737 147 11.01706 190 13.95221 234 16.95563 148 11.08532 191 14.02047 235 17.02389 149 11.15358 192 14.08873 236 17.09215 193 14.15699 237 17.16040 150 11.22184 194 14.22525 238 17.22866 151 11.29010 195 14.29351 239 17.29692 152 11.35836 196 14.36177 153 11.42662 197 14.43003 240 17.36518 154 11.49488 198 14.49829 241 17.43344 155 11.56313 199 14.56655 242 17.50170 156 11.63139 243 17.56996 157 11.69965 200 14.63481 244 17.63822 158 11.76791 201 14.70307 245 17.70648 159 11.83617 202 14.77133 246 17.77474 203 14.83959 247 17.84300 160 11.90443 204 14.90784 248 17.91126 161 11.97269 205 14.97610 249 17.97952 162 12.04095 206 15.04436 163 12.10921 207 15.11262 250 18.04778 164 12.17747 208 15.18088 251 18.11604 165 12.24573 209 15.24914 252 18.18430 166 12.31392 253 18.25255 167 12.38225 210 15.31740 254 18.32081 168 12.45051 211 15.38566 255 18.38907 169 12.51877 212 15.45392 256 18.45733 213 15.52218 257 18.52559 170 12.58703 214 15.59044 258 18.59385 171 12.65529 215 15.65870 259 18.66211 172 12.72354 216 15.72696 173 12.79180 217 15.79522 260 18.73037 174 12.86006 218 15.86348 261 18.79863 175 12.92832 219 15.93174 262 18.86689 176 12.99658 263 18.93515 177 13.06484 220 16.00000 264 19.00341 178 13.13310 221 16.06825 265 19.07167 16 4-Ounce Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 266 19.13993 310 22.14334 354 25.14675 267 19.20819 311 22.21160 355 25.21501 268 19.27645 312 22.27986 356 25.28327 269 19.34470 313 22.34812 357 25.35153 314 22.41638 358 25.41979 270 19.41296 315 22.48464 359 25.48805 271 19.48122 316 22.55290 272 19.54948 317 22.62116 360 25.55631 273 19.61774 318 22.68941 361 25.62457 274 19.68600 319 22.75767 362 25.69283 275 19.75426 363 25.76109 276 19.82252 320 22.82593 364 25.82935 277 19.89078 321 22.89419 365 25.89761 278 19.95904 322 22.96245 366 25.96587 279 20.02730 323 23.03071 367 26.03412 324 23.09897 368 26.10238 280 20.09556 325 23.16723 369 26.17064 281 20.16382 326 23.23549 282 20.23208 327 23.30375 370 26.23890 283 20.30034 328 23.37201 371 26.30716 284 20.36860 329 23.44027 372 26.37542 285 20.43685 373 26.44368 286 20.50511 330 23.50853 374 26.51194 287 20.57337 331 23.57679 375 26.58020 288 20.64163 332 23.64505 376 26.64846 289 20.70989 333 23.71331 377 26.71672 334 23.78156 378 26.78498 290 20.77815 335 23.84982 379 26.85324 291 20.84641 336 23.91808 292 20.91467 337 23.98634 380 26.92150 293 20.98293 338 24.05460 381 26.98976 294 21.05119 339 24.12286 382 27.05802 295 21.11945 383 27.12627 296 21.18771 340 24.19112 384 27.19453 297 21.25597 341 24.25938 385 27.26279 298 21.32423 342 24.32764 386 27.33105 299 21.39249 343 24.39590 387 27.39931 344 24.46416 388 27.46757 300 21.46075 345 24.53242 389 27.53583 301 21.52901 346 24.60068 302 21.59726 347 24.66894 390 27.60409 303 21.66552 348 24.73720 391 27.67235 304 21.73378 349 24.80546 392 27.74061 305 21.80204 393 27.80887 306 21.87030 350 24.87371 394 27.87713 307 21.93856 351 24.94197 395 27.94539 308 22.00682 352 25.01023 396 28.01365 309 22.07508 353 25.07849 397 28.08191 17 1-Ounce Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 398 28.15017 432 30.47098 467 32.86006 399 28.21842 433 30.53924 468 32.92832 434 30.60750 469 32.99658 400 28.28668 435 30.67576 401 28.35494 436 30.74402 470 33.06484 402 28.42320 437 30.81228 471 33.13310 403 28.49146 438 30.88054 472 33.20136 404 28.55972 439 30.94880 473 33.26962 405 28.62798 474 33.33788 406 28.69624 440 31.01706 475 33.40614 407 28.76450 441 31.08532 476 33.47440 408 28.83276 442 31.15358 477 33.54266 409 28.90102 443 31.22184 478 33.61092 444 31.29010 479 33.67918 410 28.96928 445 31.35836 411 29.03754 446 31.42662 480 33.74743 412 29.10580 447 31.49488 481 33.81569 413 29.17406 448 31.56313 482 33.88395 414 29.24232 449 31.63139 483 33.95221 415 29.31057 484 34.02047 416 29.37883 450 31.69965 485 34.08873 417 29.44709 451 31.76791 486 34.15699 418 29.51535 452 31.83617 487 34.22525 419 29.58361 453 31.90443 488 34.29351 454 31.97269 489 34.36177 420 29.65187 455 32.04095 421 29.72013 456 32.10921 490 34.43003 422 29.78839 457 32.17747 491 34.49829 423 29.85665 458 32.24573 492 34.56655 424 29.92491 459 32.31399 493 34.63481 425 29.99317 494 34.70307 426 30.06143 460 32.38225 495 34.77133 427 30.12969 461 32.45051 496 34.83959 428 30.19795 462 32.51877 497 34.90784 429 30.26621 463 32.58703 498 34.97610 464 32.65528 499 35.04436 430 30.33447 465 32.72354 431 30.40273 466 32.79180 500 35.11262 18 Multipliers for Reducing Gas Volumes or Meter Readings to a Pressure Base of 6 Ounces Above Atmospheric Pressure GAUGE PRESSURE ! Multiplier GAUGE PRESSURE Multiplier GAUGE PRESSURE Multiplier Inches of Mercury or Density Lb. per Sq. In. or Density Lb. per Sq. In. or Density -25 .14412 16 2.05752 60 5.03553 -24 .17734 17 2.12521 61 5.10321 -23 .21056 18 2.19289 62 5.17089 -22 .24378 19 2.26057 63 5.23857 -21 .27700 64 5.30626 -20 .31022 20 2.32825 65 5.37394 -19 .34344 21 2.39593 66 5.44162 -18 .37666 22 2.46362 67 5.50930 -17 .40988 23 2.53130 68 5.57698 -16 .44310 24 2.59898 69 5.64467 25 2.66666 -15 .47632 26 2.73434 70 5.71235 -14 .50954 27 2.80203 71 5.78003 -13 .54276 28 2.86971 72 5.84771 -12 .57598 29 2.93739 73 5.91539 -11 .60920 74 5.98307 -10 .64242 30 3.00507 75 6.05076 - 9 .67564 31 3.07275 76 6.11844 - 8 .70886 32 2.14043 77 6.18612 - 7 .74208 33 3.20812 78 6.25380 - 6 .77530 34 3.27580 79 6.32148 35 3.34348 __ 5 .80852 36 3.41116 80 6.38917 - 4 .84174 37 3.47884 81 6.45685 - 3 .87496 38 3.54653 82 6.52453 - 2 .90817 39 3.61421 83 6.59221 - 1 .94140 84 6.65989 Atmos. .97461 40 3.68189 85 6.72758 T K 41 3.74957 86 6.79526 L,O. 42 3.81725 87 6.86294 per Sq. In. 43 3.88494 88 6.93062 60z. 1.00000 44 3.95262 89 6.99830 ILb. 1.04230 45 4.02030 2 1.10998 46 4.08798 90 7.06598 3 1.17766 47 4.15566 91 7.13367 4 1.24534 48 4.22335 92 7.20135 5 1.31302 49 4.29103 93 7.26903 6 1.38071 94 7.33671 7 1.44839 50 4.35871 95 7.40439 8 1.51607 51 4.42639 96 7.47208 9 1.58375 52 4.49407 97 7.53976 53 4.56175 98 7.60744 10 1.65143 54 4.62944 99 7.67512 11 1.71912 55 4.69712 12 1.78680 56 4.76480 ICO 7.74280 13 1.85448 57 4.83248 101 7.81049 14 1.92216 58 4.90016 102 1 7.87817 15 1.98984 59 4.96785 103 7.94585 Means "Vacuum"' or mixed pressure. 19 6-Ounce Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 104 8.01353 148 10.99153 191 13.90186 105 8.08121 149 11.05922 192 13.96954 106 8.14890 193 14.03722 107 8.21658 150 11.12690 194 14.10490 108 8.28426 151 11.19458 195 14.17258 109 8.35194 152 11.26226 196 14.24027 153 11.32994 197 14.30795 110 8.41962 154 11.39763 198 14.37563 111 8.48730 155 11.46531 199 14.44331 112 8.55499 156 11.53299 113 8.62267 157 11.60067 200 14.51099 114 8.69035 158 11.66835 201 14.57868 115 8.75803 159 11.73604 202 14.64636 116 8.82571 203 14.71404 117 8.89340 160 11.80372 204 14.78172 118 8.96108 161 11.87140 205 14.84940 119 9.02876 162 11.93908 206 14.91708 163 12.00676 207 14.98477 120 9.09644 164 12.07445 208 15.05245 121 9.16412 165 12.14213 209 15.12013 122 9.23181 166 12.20981 123 9.29949 167 12.27749 210 15.18781 124 9.36717 168 12.34517 211 15.25549 125 9.43485 169 12.41285 212 15.32318 126 9.50253 213 15.39086 127 9.57021 170 12.48054 214 15.45854 128 9.63790 171 12.54822 215 15.52622 129 9.70558 172 12.61590 216 15.59390 173 12.68358 217 15.66159 130 9.77326 174 12.75126 218 15.72927 131 9.84094 175 12.81895 219 15.79695 132 9.90862 176 12.88663 133 9.97631 177 12.95431 220 15.86463 134 10.04399 178 13.02199 221 15.93231 135 10.11167 179 13.08967 222 16.00000 136 10.17935 223 16.06768 137 10.24703 180 13.15736 224 16.13536 138 10.31472 181 13.22504 225 16.20304 139 10.38240 182 13.29272 226 16.27072 183 13.36040 227 16.33840 140 10.45008 184 13.42808 228 16.40609 141 10.51776 185 13.49576 229 16.47377 142 10.58544 186 13.56345 143 10.65313 187 13.63113 230 16.54145 144 10.72081 188 13.69881 231 16.60913 145 10.78849 189 13.76649 232 16.67681 146 10.85617 233 16.74450 147 10.92385 190 13.83417 234 16.81218 20 6-Ounce Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In Multiplier or Density 235 16.87986 279 19.85786 322 22.76818 236 16.94754 323 22.83587 237 17.01522 280 19.92554 324 22.90355 238 17.03291 281 19.99323 325 22.97123 239 17.15059 282 20.06091 326 23.03891 283 20.12859 327 23.10659 240 17.21827 284 20.19627 328 23.17428 241 17.28595 285 20.26395 329 23.24196 242 17.35363 286 20.33164 243 17.42131 287 20.39932 330 23.30964 244 17.48900 288 20.46700 331 23.37732 245 17.55668 289 20.53468 332 23.44500 246 17.62436 333 23.51269 247 17.69204 290 20.60236 334 23.58037 248 17.75972 291 20.67005 335 23.64805 249 17.82741 292 20.73773 336 23.71573 293 20.80541 337 23.78341 250 17.89509 294 20.87309 338 23.85109 251 17.96277 295 20.94077 339 23.91878 252 18.03045 296 21.00846 253 18.09813 297 21.07614 340 23.98646 254 18.16582 298 21.14382 341 24.05414 255 18.23350 299 21.21150 342 24.12182 256 18.30118 343 24.18950 257 18.36886 300 21.27918 344 24.25719 258 18.43654 301 21.34686 345 24.32487 259 18.50423 302 21.41455 346 24.39255 303 21.48223 347 24.46023 260 18.57191 304 21.54991 348 24.52791 261 18.63959 305 21.61759 349 24.59560 262 18.70727 306 21.68527 263 18.77495 307 21.75296 350 24.66328 264 18.84263 308 21.82064 351 24.73096 265 18.91032 309 21.88832 352 24.79864 266 18.97800 353 24.86632 267 19.04568 310 21.95600 354 24.93401 268 19.11336 311 22.02368 355 25.00169 269 19.19104 312 22.09137 356 25.06937 313 22.15905 357 25.13705 270 19.24873 314 22.22673 358 25.20473 271 19.31641 315 22.29441 359 25.27241 272 19.38409 316 22.36209 273 19.45177 317 22.42978 360 25.34010 274 19.51945 318 22.49746 361 25.40778 275 19.58714 319 22.56514 362 25.47546 276 19.65482 363 25.54314 277 19.72250 320 22.63282 364 25.61082 278 19.79018 321 22.70050 365 25.67851 21 6-Ounce Multipliers (Continued) GAUGE PRESSURE u>. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 366 25.74619 411 28.79187 456 31.83756 367 25.81387 412 28.85956 457 31.90524 368 25.88155 413 28.92724 458 31.97292 369 25.94923 414 28.99492 459 32.04060 415 29.06260 370 26.01692 416 29.13028 460 32.10829 371 26.08460 417 29.19796 461 32.17597 372 26.15228 418 29.26565 462 32.24365 373 26.21996 419 29.33333 463 32.31133 374 26.28764 464 32.37901 375 26.35532 420 29.40101 465 32.44670 376 26.42301 421 29.46869 466 32.51438 377 26.49069 422 29.53637 467 32.58206 378 26.55837 423 29.60406 468 32.64974 379 26.62605 424 29.67174 469 32.71742 380 381 382 383 384 26.69373 26.76142 26.82910 26.89678 26.96446 425 426 427 428 429 29.73942 29.80710 29.87478 29.94247 30.01015 470 471 472 473 474 32.78510 32.85279 32.92047 32.98815 33.05583 385 386 387 388 389 27.03214 27.09983 27.16751 28.23519 27.30287 430 431 432 433 434 30.07783 30.14551 30.21319 30.28087 30.34856 475 476 477 478 479 33.12351 33.19120 33.25888 33.32656 33.39424 390 27.37055 435 30.41624 480 33.46192 391 27.43824 436 30.48392 481 33.52961 392 27.50592 437 30.55160 482 33.59729 393 27.57360 438 30.61928 483 33.66497 394 27.64128 439 30.68697 484 33.73265 395 27.70896 485 33.80033 396 27.77664 440 30.75465 486 33.86802 397 27.84433 441 30.82233 487 33.93570 398 27.91201 442 30.89001 488 34.00338 399 27.97969 443 30.95769 489 34.07106 444 31.02538 400 28.04737 445 31.09306 490 34.13874 401 28.11505 446 31.16074 491 34.20642 402 28.18274 447 31.22842 492 34.27411 403 28.25042 448 31.29610 493 34.34179 404 28.31810 449 31.36379 494 34.40947 405 28.38578 495 34.47715 406 28.45346 450 31.43147 496 34.54483 407 28.52115 451 31.47915 497 34.61252 408 28.58883 452 31.56683 498 34.68020 409 28.65651 453 31.63451 499 34.74788 454 31.70219 410 28.72419 455 31.76988 500 34.81556 22 Multipliers for Reducing Gas Volumes or Meter Readings to a Pressure Base of 8 Ounces Above Atmospheric Pressure GAUGE PRESSURE Inches of Mercury Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density -25 .14291 8 1.50335 35 3.31543 -24 .17585 8/^2 1.53691 36 3.38255 -23 .20879 9 1.57046 37 3.44966 -22 .24173 91^ 1.60402 38 3.51677 -21 .27468 39 3.58389 -20 .30762 10 1.63758 -19 .34056 10^ 1.67114 40 3.65100 -18 .37350 11 1.70469 41 3.71812 -17 .40644 11^2 1.73825 42 3.78523 -16 .43938 12 " 1.77181 43 3.85234 12*/> 1.80536 44 3.91946 -15 .47232 13 1.83892 45 3.98657 -14 .50526 13/-12 1.87248 46 4.05369 -13 .53820 14 1.90604 47 4.12080 -12 .57115 14J/2 1.93959 48 4.18791 -11 .60409 49 4.25503 -10 .63703 15 1.97315 - 9 .66997 151/2 2.00671 50 4.32214 - 8 .70291 16 2.04026 51 4.38926 7 .73585 16J/2 2.07382 52 4.45637 - 6 .76879 17 2.10738 53 4.52348 17^2 2.14093 54 4.59060 - 5 .80173 18 2.17449 55 4.65771 - 4 .83467 18V? 2.20805 56 4.72483 - 3 .86761 19 2.24161 57 4.79194 - 2 .90056 19}/? 2.27516 58 4.85906 _ i .93350 59 4.92617 Atmos. .96644 20 2.30872 1 T h 20^ 2.34228 60 4.99328 JL AyU. 21 2.37583 61 5.06040 per Sq. In. 2.40939 62 5 12751 OK .98322 22 2 2^44295 63 5.19463 OH 1.00000 22/4 2.47651 64 5.26174 1.03355 23 2.51006 65 5.32885 \y 2 1.06711 23y 2 2.54362 66 5.39597 2 1.10067 24 2.57718 67 5.46308 2 1 A 1.13422 24^ 2.61073 68 5.53020 3 1.16778 69 5.59731 3J/2 1.20134 25 2.64429 4 1.23489 26 2.71140 70 5.66442 41^ 1.26845 27 2.77852 71 5.73154 28 2.84563 72 5.79865 5 1.30201 29 2.91275 73 5.86577 5/lj 1.33557 30 2.97986 74 5.93288 6 1.36912 31 3.04697 75 6.00000 &A 1.40268 32 3.11409 76 6.06711 7 1.43624 33 3.18120 77 6.13422 - VA 1.46979 34 3.24832 78 6.20134 Means "Vacuum" or minus pressure. 23 8-Ounce Multipliers (Continued) GAUGE PRESSURE U>. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 79 6.26845 122 9.15436 166 12.10738 123 9.22147 167 12.17449 80 6.33557 124 9.28859 168 12.24161 81 6.40268 125 9.35570 169 12.30872 82 6.46979 126 9.42281 83 6.53691 127 9.48993 170 12.37583 84 6.60402 128 9.55704 171 12.44295 85 6.67114 129 9.62416 172 12.51006 86 6.73825 173 12.57718 87 6.80536 130 9.69127 174 12.64429 88 6.87248 131 9.75838 175 12.71140 89 6.93959 132 9.82550 176 12.77852 133 9.89261 177 12.84563 90 7.00671 134 9.95973 178 12.91275 91 7.07382 135 10.02684 179 12.97986 92 7.14093 136 10.09395 93 7.20805 137 10.16107 180 13.04697 94 7.27516 138 10.22818 181 13.11409 95 7.34228 139 10.29530 182 13.18120 96 7.40939 183 13.24832 97 7.47650 140 10.36241 184 13.31543 98 7.54362 141 10.42953 185 13.38255 99 7.61073 142 10.49664 186 13.44966 143 10.56375 187 13.51677 100 7.67785 144 10.63087 188 13.58389 101 7.74496 145 10.69798 189 13.65100 102 7.81208 146 10.76510 103 7.87919 147 10.83221 190 13.71812 104 7.94630 148 10.89932 191 13.78523 105 8.01342 149 10.96644 192 13.85234 106 8.08053 193 13.91946 107 8.14765 150 11.03355 194 13.98657 108 8.21476 151 11.10067 195 14.05369 109 8.28187 152 11.16778 196 14.12080 153 11.23489 197 14.18791 110 8.34899 154 11.30201 198 14.25503 111 8.41610 155 11.36912 199 14.32214 112 8.48322 156 11.43624 113 8.55033 157 11.50335 200 14.38926 114 8.61744 158 11.57046 201 14.45637 115 8.68456 159 11.63758 202 14.52348 116 8.75167 203 14.59060 117 8.81879 160 11.70469 204 14.65771 118 8.88590 161 11.77181 205 14.72473 119 8.95302 162 11.83892 206 14.79194 163 11.90604 207 14.85906 120 9.02013 164 11.97315 208 14.92617 121 9.08724 165 12.04026 209 14.99328 24 8-Ounce Multipliers (Continued) GAUGE PRESSURE u>. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 210 15.06040 254 18.01342 298 20.96644 211 15.12751 255 18.08053 299 21.03355 212 15.19463 256 18.14765 213 15.26174 257 18.21476 300 21.10067 214 15.32885 258 18.28187 301 21.16778 215 15.39597 259 18.34899 302 21.23489 216 15.46308 303 21.30201 217 15.53020 260 18.41610 304 21.36912 218 15.59731 261 18.48322 305 21.43624 219 15.66442 262 18.55033 306 21.50335 263 18.61744 307 21.57046 220 15.73154 264 18.68456 308 21.63758 221 15.79865 265 18.75167 309 21.70469 222 15.86577 266 18.81879 223 15.93288 267 18.88590 310 21.77181 224 16.00000 268 18.95301 311 21.83892 225 16.06711 269 19.02013 312 21.90603 226 16.13422 313 21.97315 227 16.20134 270 19.08724 314 22.04020 228 16.26845 271 19.15436 315 22.10738 229 16.33557 272 19.22147 316 22.17449 273 19.28859 317 22.24161 230 16.40268 274 19.35570 318 22.30872 231 16.46979 275 19.42281 319 22.37583 232 16.53691 276 19.48993 233 16.60402 277 19.55704 320 22.44295 234 16.67114 278 19.62416 321 22.51006 235 16.73825 279 19.69127 322 22.57718 236 16.80536 323 22.64429 237 16.87248 280 19.75838 324 22.71140 238 16.93959 281 19.82550 325 22.77852 239 17.00671 282 19.89261 326 22.84563 283 19.95973 327 22.91275 240 17.07382 284 20.02684 328 22.97986 241 17.14093 285 20.09395 329 23.04697 242 17.20805 286 20.16107 243 17.27516 287 20.22818 330 23.11409 244 17.34228 288 20.29530 331 23.18120 245 17.40939 289 20.36241 332 23.24832 246 17.47650 333 23.31543 247 17.54362 290 20.42952 334 23.38255 248 17.61073 291 20.49654 335 23.44966 249 17.67785 292 20.56375 336 23.51677 293 20.63087 337 23.58389 250 17.74496 294 20.69798 338 23.65100 251 17.81208 295 20.76510 339 23.71812 252 17.87919 296 20.83221 253 17.94630 297 20.89932 340 23.78523 25 8-Ounce Multipliers (Continued) GAUGE PRESSURE u>. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 341 23.85234 385 26.80536 429 29.75838 342 23.91946 386 26.87248 343 23.98657 387 26.93959 430 29.82550 344 24.05369 388 27.00671 431 29.89261 345 24.12080 389 27.07382 432 29.95973 346 24.18791 433 30.02684 347 24.25503 390 27.14093 434 30.09395 348 24.32214 391 27.20805 435 30.16107 349 24.38926 392 27.27516 436 30.22818 393 27.34228 437 30.29530 350 24.45637 394 27.40939 438 30.36241 351 24.52348 395 27.47650 439 30.42952 352 24.59060 396 27.54362 353 24.65771 397 27.61073 440 30.49664 354 24.72483 398 27.67785 441 30.56375 355 24.79194 399 27.74496 442 30.63087 356 24.85906 443 30.69798 357 24.92617 400 27.81208 444 30.76510 358 24.99328 401 27.87919 445 30.83221 359 25.06040 402 27.94630 446 30.89932 403 28.01342 447 30.96644 360 25.12751 404 28.08053 448 31.03355 361 25.19463 405 28.14765 449 31.10067 362 25.26174 406 28.21476 363 25.32885 407 28.28187 450 31.16778 364 25.39597 408 28.34899 451 31.23489 365 25.46308 409 28.41610 452 31.30201 366 25.53020 453 31.36912 367 25.59731 410 28.48322 454 31.43624 368 25.66442 411 28.55033 455 31.50335 369 25.73154 412 28.61744 456 31.57046 413 28.68456 457 31.63758 370 25.79865 414 28.75167 458 31.70469 371 25.86577 415 28.81879 459 31.77181 372 25.93288 416 28.88590 373 26.00000 417 28.95301 460 31.83892 374 26.06711 418 29.02013 461 31.90603 375 26.13422 419 29.08724 462 31.97315 376 26.20134 463 32.04026 377 26.26845 420 29.15436 464 32.10738 378 26.33557 421 29.22147 465 32.17449 379 26.40268 422 29.28859 466 32.24161 423 29.35570 467 32.30872 380 26.46979 424 29.42281 468 32.37583 381 26.53691 425 29.48993 469 32.44295 382 26.60402 426 29.55704 383 26.67114 427 29.62416 470 32.51006 384 26.73825 428 29.69127 471 32.57718 26 8-Ounce Multipliers (Continued) GAUGE PRESSURE Multiplier GAUGE PRESSURE Multiplier GAUGE PRESSURE Multiplier U>. per Sq. In. or Density Lb. per Sq. In. or Density Lb. per Sq. In. or Density 472 32.64429 482 33.31543 492 33.98657 473 32.71140 483 33.38254 493 34.05369 474 32.77852 484 33.44966 494 34.12080 475 32.84563 485 33.51677 495 34.18791 476 32.91275 486 33.58389 496 34.25503 477 32.97986 487 33.65100 497 34.32214 478 33.04697 488 33.71812 498 34.38926 479 33.11409 489 33.78523 499 34.45637 480 33.18120 490 33.85234 500 34.52348 481 33.24832 491 33.91946 27 Multipliers for Reducing Gas Volumes or Meter Readings to a Pressure Base of 10-Ounces Above Atmospheric Pressure GAUGE PRESSURE Inches of Mercury Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density -25 .14172 7^ 1.45757 34 3.22129 -24 .17439 8 1.49084 35 3.28785 -23 .20706 8K 1.52412 36 3.35440 -22 .23972 9 1.55740 37 3.42096 -21 .27239 38 3.48752 -20 .30506 9^ 1.59068 39 3.55407 -19 .33772 10 1.62396 -18 .37039 10^ 1.65723 40 3.62063 -17 .40306 11 1.69051 41 3.68718 -16 .43573 11K 1.72379 42 3.75374 12 1.75707 43 3.82029 -15 .46839 12 1 A 1.79034 44 3.88685 -14 .50106 13 1.82362 45 3.95341 -13 .53373 13H 1.85690 46 4.01996 -12 .56639 14 1.89018 47 4.08652 -11 .59906 48 4.15307 -10 .63173 14^ 1.92346 49 4.21963 g .66439 15 1.95673 - 8 .69706 15^ 1.99001 50 4.28618 - 7 .72973 16 2.02329 51 4.35274 - 6 .76240 16^ 2.05657 52 4.41930 17 2.08985 53 4.48585 - 5 .79506 17H 2.12312 54 4.55241 - 4 .82773 18 2.15640 55 4.61896 - 3 .86040 IBM 2.18968 56 4.68552 - 2 .89306 19 2.22296 57 4.75207 - 1 .92573 58 4.81863 Atmos. .95840 IVA 2.25623 59 4.88519 20 2.28951 Lb. per Sq. In. 20^ 21 2.32279 2.35607 60 61 4.95174 5.01830 .25 .97504 2iy 2 2.38935 62 5.08485 .5 .99168 22 2.42262 63 5.15141 .625 1.00000 22y 2 2.45590 64 5.21797 1 1.02495 23 2.48918 65 5.28452 IH 1.05823 2zy 2 2.52246 66 5.35108 2 .09151 24 2.55574 67 5.41763 2y 2 .12479 68 5.48419 3 .15806 2VA 2.58901 69 5.55074 &A .19134 25 2.62229 4 .22462 26 2.68885 70 5.61730 27 2.75540 71 5.68386 4^ 1.25790 28 2.82196 72 5.75041 5 1.29118 29 2.88851 73 5.81697 &A 1.32445 30 2.95507 74 5.88352 6 1.35773 31 3.02163 75 5.95008 VA 1.39101 32 3.08818 76 6.01663 7 1.42429 33 3.15474 77 6.08319 Means "Vacuum" or minus pressure. 28 10-Ounce Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In Multiplier or Density GAUGE PRESSURE Lb. per Sq. In Multiplier or Density 78 6.14975 121 9.01164 165 11.94009 79 6.21630 122 9.07820 166 12.00665 123 9.14475 167 12.07321 80 6.28286 124 9.21131 168 12.13976 81 6.34941 125 9.27787 169 12.20632 82 6.41597 126 9.34442 83 6.48252 127 9.41098 170 12.27287 84 6.54908 128 9.47753 171 12.33943 85 6.61564 129 9.54409 172 12.40598 86 6.68219 173 12.47254 87 6.74875 130 9.61064 174 12.53910 88 6.81530 131 9.67720 175 12.60565 89 6.88186 132 9.74376 176 12.67221 133 9.81031 177 12.73876 90 6.94841 134 9.87687 178 12.80532 91 7.01497 135 9.94342 179 12.87188 92 7.08153 136 10.00998 93 7.14808 137 10.07653 180 12.93843 94 7.21464 138 10.14309 181 13.00499 95 7.28119 139 10.20965 182 13.07154 96 7.34775 183 13.13810 97 7.41430 140 10.27620 184 13.20465 98 7.48086 141 10.34276 185 13.27121 99 7.54742 142 10.40931 186 13.33777 143 10.47587 187 13.40432 100 7.61397 144 10.54242 188 13.47088 101 7.68053 145 10.60898 189 13.53743 102 7.74708 146 10.67554 103 7.81364 147 10.74209 190 13.60399 104 7.88019 148 10.80865 191 13.67054 105 7.94675 149 10.87520 192 13.73710 106 8.01331 193 13.80366 107 8.07986 150 10.94176 194 13.87021 108 8.14642 151 11.00831 195 13.93677 109 8.21297 152 11.07487 196 14.00332 153 11.14143 197 14.06988 110 . 8.27953 154 11.20798 198 14.13643 Ill 8.34608 155 11.27454 199 14.20297 112 8.41264 156 11.34109 113 8.47920 157 11.40765 200 14.26950 114 8.54575 158 11.47420 201 14.33610 115 8.61231 159 11.54076 202 14.40266 116 8.67886 203 14.46921 117 8.74542 160 11.60732 204 14.53577 118 8.81197 161 11.67387 205 14.60232 119. 8.87853 162 11.74043 206 14.66888 163 11.80698 207 14.73544 120 8.94504 164 11.87354 208 14.80199 29 10-Ounce Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 209 14.86855 252 17.73044 296 20.65890 253 17.79700 297 20.72545 210 14.93510 254 17.86356 298 20.79201 211 15.00166 255 17.93011 299 20.85856 212 15.06821 256 17.99667 213 15.13477 257 18.06322 300 20.92512 214 15.20133 258 18.12978 301 20.99168 215 15.26788 259 18.19633 302 21.05823 216 15.33444 303 21.12479 217 15.40099 260 17.26289 304 21.19134 218 15.46755 261 18.32945 305 21.25790 219 15.53410 262 18.39600 306 21.32445 263 18.46256 307 21.39101 220 15.60066 264 18.52911 308 21.45757 221 15.66722 265 18.59567 309 21.52412 222 15.73377 266 18.66222 223 15.80033 267 18.72878 310 21.59068 224 15.86688 268 18.79534 311 21.65723 225 15.93344 269 18.86189 312 21.72379 226 16.00000 313 21.79034 227 16.06655 270 18.92845 314 21.85690 228 16.13311 271 18.99500 315 21.92346 229 16.19966 272 19.06156 316 21.99001 273 19.12811 317 22.05657 230 16.26622 274 19.19467 318 22.12312 231 16.33277 275 19.26123 319 22.18968 232 16.39933 276 19.32778 233 16.46589 277 19.39434 320 22.25623 234 16.53244 278 19.46089 321 22.32279 235 16.59900 279 19.52745 322 22.38935 236 16.66555 323 22.45590 237 16.73211 280 19.59400 324 22.52246 238 16.79866 281 19.66056 325 22.58901 239 16.86522 282 19.72712 326 22.65557 283 19.79367 327 22.72212 240 16.93178 284 19.86023 328 22.78868 241 16.99833 285 19.92678 329 22.85524 242 17.06489 286 19.99334 243 17.13144 287 20.05990 330 22.92179 244 17.19800 288 20.12645 331 22.98835 245 17.26455 289 20.19301 332 23.05490 246 17.33111 333 23.12146 247 17.39767 290 20.25956 334 23.18801 248 17.46422 291 20.32612 335 23.25457 249 17.53078 292 20.39267 336 23.32113 293 20.45923 337 23.38768 250 17.59733 294 20.52579 338 23.45424 251 17.66389 I 295 20.59234 339 23.52079 30 10-Ounce Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 340 23.58735 384 26.51580 428 29.44425 341 23.65390 385 26.58236 429 29.51081 342 23.72046 386 26.64891 343 23.78702 387 26.71547 430 29.57737 344 23.85357 388 26.78202 431 29.64392 345 23.92013 389 26.84858 432 29.71048 346 23.98668 433 29.77703 347 24.05324 390 26.91514 434 29.84359 348 i 24.11980 391 26.98169 435 29.91014 349 I 24.18635 392 27.04825 436 29.97670 393 27.11480 437 30.04326 350 24.25291 394 27.18136 438 30.10981 351 24.31946 395 27.24791 439 30.17637 352 24.38602 396 27.31447 353 24.45257 397 27.38103 440 30.24292 354 24.51913 398 27.44758 441 30.30948 355 24.58569 399 27.51414 442 30.37603 356 24.65224 443 30.44259 357 24.71880 400 27.58069 444 30.50915 358 24.78535 401 27.64725 445 30.57570 359 24.85191 402 27.71381 446 30.64226 403 27.78036 447 30.70881 360 ! 24.91846 404 27.84692 448 30.77537 361 24.98502 405 27.91347 449 30.84192 362 25.05158 406 27.98003 363 25.11813 407 28.04658 450 30.90848 364 25.18469 408 28.11314 451 30.97504 365 25.25124 409 28.17970 452 31.04159 366 25.31780 453 31.10815 367 25.38435 410 28.24625 454 31.17470 368 25.45091 411 28.31281 455 31.24126 369 25.51747 412 28.37936 456 31.30782 413 28.44592 457 31.37437 370 25.58402 414 28.51247 458 31.44093 371 25.65058 415 28.57903 459 31.50748 372 25.71713 416 28.64559 373 25.78369 417 28.71214 460 31.57404 374 25.85024 418 28.77870 461 31.64059 375 25.91680 419 28.84525 462 31.70715 376 25.98336 463 31.77371 377 26.04991 420 28.91181 464 31.84026 378 26.11647 421 28.97836 465 31.90682 379 26.18302 422 29.04492 466 31.97337 423 29.11148 467 32.03993 380 26.24958 424 29.17803 468 32.10648 381 26.31613 425 29.24459 469 32.17304 382 26.38269 426 29.31114 383 26.44925 427 29.37770 470 32.23960 31 10-Ounce Multipliers (Co ntinued) GAUGE PRESSURE Multiplier GAUGE PRESSURE Multiplier GAUGE PRESSURE Multiplier Lb. per Sq. In. or Density Lb. per Sq. In. or Density Lb. per Sq. In. or Density 471 32.30615 481 32.97171 491 33.63727 472 32.37271 482 33.03826 492 33.70382 473 32.43926 483 33.10482 493 33.77038 474 32.50582 484 33.17138 494 33.83693 475 32.57237 485 33.23793 495 33.90349 476 32.63893 486 33.30449 496 33.97004 477 32.70549 487 33.37104 497 34.03660 478 32.77204 488 33.43760 498 34.10316 479 32.83860 489 33.50415 499 34.16971 480 32.90515 490 33.57071 500 34.23627 32 Multipliers for Reducing Gas Volumes or Meter Readings to a Pressure Base of 12 Ounces Above Atmospheric Pressure GAUGE PRESSURE Multiplier GAUGE PRESSURE Multiplier GAUGE PRESSURE Multiplier Inches of Mercury or Density Lb. per Sq. In. or Density Lb. per Sq. In. or Density -25 .14055 15 1.94059 59 4.84488 -24 .17295 16 2.00660 -23 .20535 17 2.07260 60 4.91089 -22 .23775 18 2.13861 61 4.97689 -21 .27014 19 2.20462 62 5.04290 -20 .30254 63 5.10891 -19 .33494 20 2.27062 64 5.17491 -18 .36734 21 2.33663 65 5.24092 -17 .39973 22 2.40264 66 5.30693 -16 .43213 23 2.46864 67 5.37293 24 2.53465 68 5.43894 -15 .46453 25 2.60066 69 5.50495 -14 .49693 26 2.66666 -13 .52932 27 2.73267 70 5.57095 -12 .56172 28 2.79867 71 5.63696 -11 .59412 29 2.86468 72 5.70297 -10 - 9 8 .62652 .65891 .69131 30 31 2.93069 2.99669 73 74 75 5.76897 5.83498 5.90099 - 7 .72371 32 3.06270 76 5.96699 - 6 .75611 33 3.12871 77 6.03300 34 3.19471 78 6.09900 - 5 .78850 35 3.26072 79 6.16501 4 - 3 2 .82090 .85330 .88570 36 37 38 3.32673 3.39273 3.45874 80 81 00 6.23102 6.29702 fi 36S03 - 1 .91809 39 3.52475 Q6 83 O . OUOwO 6.42904 Atmos. .95049 .96699 .98349 1.01650 40 41 42 43 44 45 3.59075 3.65676 3.72277 3.78877 3.85478 3.92079 84 85 86 87 88 89 6^49504 6.56105 6.62706 6.69306 6.75907 6.82508 tb. per Sq. In. .25 .5 1 2 1.08250 46 3.98679 90 6.89108 3 1.14851 47 4.05280 91 6.95709 4 1.21452 48 4.11881 92 7.02310 5 1.28052 49 4.18481 93 7.08910 6 1.34653 94 7.15511 7 1.41254 50 4.25082 95 7.22112 8 1.47854 51 4.31683 96 7.28712 9 1.54455 52 4.38283 97 7.35313 53 4.44884 98 7.41914 10 1.61056 54 4.51485 99 7.48514 11 1.67656 55 4.58085 12 1.74257 56 4.64686 100 7.55115 13 1.80858 57 4.71287 101 7.61716 14 1.87458 58 4.77887 102 7.68316 Means "Vacuum" or minus pressure. 33 12-Ounce Multipliers (Continued) GAUGE PRESSURE Lb. per Sq.. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 103 7.74917 147 10.65346 190 13.49174 104 7.81518 148 10.71947 191 13.55775 105 7.88118 149 10.78547 192 13.62376 106 7.94719 193 13.68976 107 8.01320 150 10.85148 194 13.75577 108 8.07920 151 10.91749 195 13.82178 109 8.14521 152 10.98349 196 13.88778 153 11.04950 197 13.95379 110 8.21122 154 11.11551 198 14.01980 111 8.27722 155 11.18151 199 14.08580 112 8.34323 156 11.24752 113 8.40924 157 11.31353 200 14.15181 114 8.47524 158 11.37953 201 14.21782 115 8.54125 159 11.44554 202 14.28382 116 8.60726 103 14.34983 117 118 119 120 121 122 123 124 125 126 8.67326 8.73927 8.80528 8.87128 8.93729 9.00330 9.06930 9.13531 9.20132 9.26732 160 161 162 163 164 165 166 167 168 169 11.51155 11.57755 11.64356 11.70957 11.77557 11.84158 11.90759 11.97359 12.03960 12.10561 204 205 206 207 208 209 210 211 212 213 14.41584 14.48184 14.54785 14.61386 14.67986 14.74587 14.81188 14.87788 14.94389 15.00990 127 9.33333 214 15.07590 128 9.39933 170 12.17161 215 15.14191 129 9.46534 171 12.23762 216 15.20792 172 12.30363 217 15.27392 130 9.53135 173 12.36963 218 15.33993 131 9.59735 174 12.43564 219 15.40594 132 9.66336 175 12.50165 133 9.72937 176 12.56765 220 15.47194 134 9.79537 177 12.63366 221 15.53795 135 9.86138 178 12.69966 222 15.60396 136 9.92739 179 12.76567 223 15.66996 137 9.99339 224 15.73597 138 10.05940 180 12.83168 225 15.80198 139 10.12541 181 12.89768 226 15.86798 182 12.96369 227 15.93399 140 10.19141 183 13.02970 228 16.00000 141 10.25742 184 13.09570 229 16.06600 .142 10.32343 185 13.16171 143 10.38943 186 13.22772 230 16.13201 144 10.45544 187 13.29372 231 16.19801 145 10.52145 188 13.35973 232 16.26402 146 10.58745 189 13.42574 233 16.33003 12-Ounce Multipliers (Continued] GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 234 16.39603 278 19.30032 321 22.13861 235 16.46204 279 19.36633 322 22.20462 236 16.52805 323 22.27062 237 16.59405 280 19.43234 324 22.33663 238 16.66006 281 19.49834 325 22.40264 239 16.72607 282 19.56435 326 22.46864 283 19.63036 327 22.53465 240 16.79207 284 19.69636 328 22.60065 241 16.85808 285 19.76237 329 22.66666 242 16.92409 286 19.82838 243 16.99009 287 19.89438 330 22.73267 244 17.05610 288 19.96039 331 22.79867 245 17.12211 289 20.02640 332 22.86468 246 17.18811 333 22.93069 247 17.25412 290 20.09240 334 22.99669 248 17.32013 291 20.15841 335 23.06270 249 17.38613 292 20.22442 336 23.12871 293 20.29042 337 23.19471 250 17.45214 294 20.35643 338 23.26072 251 17.51815 295 20.42244 339 23.32673 252 17.58415 296 20.48844 253 17.65016 297 20.55445 340 23.39273 254 17.71617 298 20.62046 341 23.45874 255 17.78217 299 20.68646 342 23.52475 256 17.84818 343 23.59075 257 17.91419 300 20.75247 344 23.65676 258 17.98019 301 20.81848 345 23.72277 259 18.04620 302 20.88448 346 23.78877 303 20.95049 347 23.85478 260 18.11221 304 21.01650 348 23.92079 261 18.17821 305 21.08250 349 23.98679 262 18.24422 306 21.14851 263 18.31023 307 21.21452 350 24.05280 264 18.37623 308 21.28052 351 24.11881 265 18.44224 309 21.34653 352 24.18481 266 18.50825 353 24.25082 267 18.57425 310 21.41254 354 24.31683 268 18=64026 311 21.47854 355 24.38283 269 18.70627 312 21.54455 356 24.44884 313 21.61056 357 24.51485 270 18.77227 314 21.67656 358 24.58085 271 18.83828 315 21.74257 359 24.64686 272 18.90429 316 21.80858 273 18.97029 317 21.87458 360 24.71287 274 19.03630 318 21.94059 361 24.77887 275 19.10231 319 22.00660 362 24.84488 276 19.16831 363 24.91089 277 19.23432 320 22.07260 364 24.97689 12-Ounce Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density. GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 365 25.04290 410 28.01320 456 31.04950 366 25.10891 411 28.07920 457 31.11551 367 25.17491 412 28.14521 458 31.18151 368 25.24092 413 27.21122 459 31.24752 369 370 371 372 373 374 25.30693 25.37293 25.43894 25.50495 25.57095 25.63696 414 415 416 417 418 419 28.27722 28.34323 28.40924 28.47524 28.54125 28.60726 460 461 462 463 464 465 31.31353 31.37953 31.44554 31.51155 31.57755 31.64356 375 25.70297 420 28.67326 466 31.70957 376 25.76897 421 28.73927 467 31.77557 377 25.83498 422 28.80528 468 31.84158 378 25.90099 423 28.87128 469 31.90759 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 25.96699 26.03300 26.09901 26.16501 26.23102 26.29702 26.36303 26.42904 26.49504 26.56105 26.62706 26.69306 26.75907 26.82508 26.89108 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 28.93729 29.00330 29.06930 29.13531 29.20131 29.26732 29.33333 29.39933 29.46534 29.53135 29.59735 29.66336 29.72937 29.79537 29.86138 29.92739 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 31.97359 32.03960 32.10561 32.17161 32.23762 32.30363 32.36963 32.43564 32.50165 32.56765 32.63366 32.69967 32.76567 32.83168 32.89768 32.96369 394 26.95709 440 29.99339 486 33.02970 395 27.02310 441 30.05940 487 33.09570 396 27.08910 442 30.12541 488 33.16171 397 27.15511 443 30.19141 489 33.22772 398 27.22112 444 30.25742 399 27.28712 445 30.32343 490 33.29372 400 401 402 403 27.35313 27.41914 27.48514 27.55115 446 447 448 449 30.38943 30.45544 30.52145 30.58745 491 492 493 494 495 33.35973 33.42574 33.49174 33.55775 33.62376 404 27.61716 450 30.65346 496 33.68976 405 27.68316 451 30.71947 497 33.75577 406 27.74917 452 30.78547 498 33.82178 407 27.81518 453 30.85148 499 33.88778 408 27.88118 454 30.91749 409 27.94719 455 30.98349 j 500 33.95379 I 36 Multipliers for Reducing Gas Volumes or Meter Readings to a Pressure Base of 14 Ounces Above Atmospheric Pressure GAUGE PRESSURE Inches of Mercury Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density -25 .13940 13 1.79378 57 4.67430 -24 .17154 14 1.85924 58 4.73977 -23 .20367 15 1.92471 59 4.80523 -22 .23580 16 1.99018 -21 .26793 17 2.05564 60 4.87070 -20 .30006 18 2.12111 61 4.93617 -19 .33220 19 2.18657 62 5.00163 -18 .36433 63 5.06710 -17 .39646 20 2.25204 64 5.13256 -16 .42859 21 2.31751 65 5.19803 22 2.38297 66 5.26350 -15 .46073 23 2.44844 67 5.32896 -14 .49286 24 2.51391 68 5.39443 -13 .52499 25 2.57937 69 5.45990 -12 -11 -10 - 9 .55712 .58926 .62139 .65352 26 27 28 29 2.64484 2.71031 2.77577 2.84124 70 71 5 5.52536 5.59083 5.65630 5.72176 8 - 7 - 6 - 5 4 - 3 .68565 .71779 .74992 .78205 .81418 .84631 30 31 32 33 34 35 2.90671 2.97217 3.03764 3.10310 3.16857 3.23404 8 76 77 78 79 5.78723 5.85270 5.91816 5.98363 6.04909 6.11456 - 2 .87845 36 3.29950 80 6.18003 - 1 .91058 37 3.36497 81 6.24549 Atmos. .94271 38 3.43044 82 6.31096 Lb. 39 3.49590 83 6.37643 per Sq. In. 40 3.56137 84 85 6.44189 6.50736 .25 .95908 41 3.62684 86 6^57283 .5 .97545 42 3.69230 87 6.63829 .75 .99181 43 3.75777 88 6.70376 .875 1.00000 44 3.82324 89 6.76923 1 1.00818 45 3.88870 2 1.07364 46 3.95417 90 6.83469 3 1.13911 47 4.01963 91 6.90016 4 1.20458 48 4.08510 92 6.96563 5 1.27004 49 4.15057 93 7.03109 6 1.33551 94 7.09656 7 1.40098 50 4.21603 95 7.16202 8 1.46644 51 4.28150 96 7.22749 9 1.53191 52 4.34697 97 7.29296 53 4.41243 98 7.35842 10 1.59738 54 4.47790 99 7.42389 11 1.66284 55 4.54337 12 1.72831 56 4.60883 100 7.48936 Means "Vacuum" or minus pressure. 37 14-Ounce Multipliers (Continued] GAUGE PRESSURE Lb, per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 101 7.55482 145 10.43535 189 13.31587 102 7.62029 146 10.50081 103 7.68576 147 10.56628 190 13.38134 104 7.75122 148 10.63175 191 13.44680 105 7.81669 149 10.69721 192 13.51227 106 7.88216 193 13.57774 107 7.94762 150 10.76268 194 13.64320 108 8.01309 151 10.82815 195 13.70867 109 8.07855 152 10.89361 196 13.77414 153 10.95908 197 13.83960 110 8.14402 154 11.02454 198 13.90507 111 8.20949 155 11.09001 199 13.97054 112 113 114 8.27495 8.34042 8.40589 156 157 158 11.15548 11.22094 11.28641 200 201 14.03600 14.10147 115 8.47135 159 11.35188 202 14.16693 116 8.53682 203 14.23240 117 118 119 8^60229 8.66775 8.73322 160 161 162 163 11.41734 11.48281 11.54828 11.61374 204 205 206 207 14.29787 14.36333 14.42880 14.49427 120 121 8.79869 8.86415 164 165 11.67921 11.74468 208 209 14.55973 14.62520 122 8.92962 166 11.81014 210 14.69067 123 8.99508 167 11.87561 211 14.75613 124 9.06055 168 11.94108 212 14.82160 125 9.12602 169 12.00654 213 14.88707 126 127 128 9.19148 9.25695 9.32242 170 171 12.07201 12.13747 214 215 216 14.95253 15.01800 15.08346 129 9.38788 172 12.20294 217 15.14893 130 9.45335 173 174 12.26841 12.33387 218 219 15.21440 15.27986 131 9.51882 175 12.39934 132 9.54828 176 12.46481 220 15.34533 133 9.64975 177 12.53027 221 15.41080 134 9.71522 178 12.59574 222 15.47626 135 9.78068 179 12.66121 223 15.54173 136 9.84615 224 15.60720 137 9.91162 180 12.72667 225 15.67266 138 9.97708 181 12.79214 226 15.73813 139 10.04255 182 12.85761 227 15.80360 183 12.92307 228 15.86906 140 10.10801 184 12.98854 229 15.93453 141 10.17348 185 13.05400 142 10.23895 186 13.11947 230 15.99999 143 10.30441 187 13.18494 231 16.06546 144 10.36988 188 13.25040 232 16.13093 38 14-Ounce Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 233 16.19639 277 19.07692 320 21.89198 234 16.26186 278 19.14238 321 21.95744 235 16.32733 279 19.20785 322 22.02291 236 16.39279 323 22.08837 237 16.45826 280 19.27332 324 22.15384 238 16.52373 281 19.33878 325 22.21931 239 16.58919 282 19.40425 326 22.28477 283 19.46972 327 22.35024 240 16.65466 284 19.53518 328 22.41571 241 16.72013 285 19.60065 329 22.48117 242 16.78559 286 19.66612 243 16.85106 287 19.73158 330 22.54664 244 16.91653 288 19.79705 331 22.61211 245 16.98199 289 19.86252 332 22.67757 246 17.04746 333 22.74304 247 248 249 250 251 252 253 254 255 256 17.11292 17.17839 17.24386 17.30932 17.37479 17.44026 17.50572 17.57119 17.63666 17.70212 290 291 292 293 294 295 296 297 298 299 19.92798 19.99345 20.05891 20.12438 20.18985 20.25531 20.32078 20.38625 20.45171 20.51718 334 335 336 337 338 339 340 341 342 343 22.80851 22.87397 22.93944 23.00490 23.07037 23.13584 23.20130 23.26677 23.33224 23.39770 257 17.76759 344 23.46317 258 17.83306 300 20.58265 345 23.52864 259 17.89852 301 20.64811 346 23.59410 302 20.71358 347 23.65957 260 17.96399 303 20.77905 348 23.72504 261 18.02945 304 20.84451 349 23.79050 262 18.09492 305 20.90998 263 18.16039 306 20.97544 350 23.85597 264 18.22585 307 21.04091 351 23.92144 265 18.29132 308 21.10638 352 23.98690 266 18.35679 309 21.17184 353 24.05237 267 18.42225 354 24.11783 268 18.48772 310 ' 21.23731 355 24.18330 269 18.55319 311 21.30278 356 24.24877 312 21.36824 357 24.31423 270 18.61865 313 21.43371 358 1 24.37970 271 18.68412 314 21.49918 359 24.44517 272 18.74959 315 21.56464 273 18.81505 316 21.63011 360 24.51063 274 18.88052 317 21.69558 361 24.57610 275 18.94599 318 21.76104 362 24.64157 276 19.01145 319 21.82651 363 24.70703 14-Ouace Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplie or Density 364 24.77250 410 27.78396 456 30.79541 365 24.83797 411 27.84942 457 30.86088 366 24.90343 412 27.91489 458 30.92635 367 24.96890 413 27.98035 459 30.99181 368 25.03436 414 28.04582 369 25.09983 415 28.11129 460 31.05728 416 28.17675 461 31.12274 370 25.16530 417 28.24222 462 31.18821 371 25.23076 418 28.30769 463 31.25368 372 25.29623 419 28.37315 464 31.31914 373 25.36170 465 31,38461 374 25.42716 420 28.43862 466 31.45008 375 25.49263 421 28.50409 467 31.51554 376 25.55810 422 28.56955 468 31.58101 377 25.62356 423 28.63502 469 31.64648 378 25.68903 424 28.70049 379 25.75450 425 28.76595 470 31.71194 426 28.83142 471 31.77741 380 25.81996 427 28.89689 472 31.84288 381 25.88543 428 28.96235 473 31.90834 382 25.95089 429 29.02782 474 31.97381 383 26.01636 475 32.03927 384 26.08183 430 29.09328 476 32.10474 385 26.14729 431 29.15875 477 32.17021 386 26.21276 432 29.22422 478 32.23567 387 26.27823 433 29.28968 479 32.30114 388 26.34369 434 29.35515 389 26.40916 435 29.42062 480 32.36661 436 29.48608 481 32.43207 390 26.47463 437 29.55155 482 32.49754 391 26.54009 438 29.61702 483 32.56301 392 26.60556 439 29.68248 484 32.62847 393 26.67103 485 32.69394 394 26.73649 440 29.74795 486 32.75941 395 26.80196 441 29.81342 487 32.82487 396 26.86743 442 29.87888 488 32.89034 397 26.93289 443 29.94435 489 32.95580 398 26.99836 444 30.00981 399 27.06382 445 30.07528 490 33.02127 446 30.14075 491 33.08674 400 27.12929 447 30.20621 492 33.15220 401 27.19476 448 30.27168 493 33.21767 402 27.26022 449 30.33715 494 33.28314 403 27.32569 495 33.34860 404 27.39116 450 30.40261 496 33.41407 405 27.45662 451 30.46808 497 33.47954 406 27.52209 452 30.53355 498 33.54500 407 27.58756 453 30.59901 499 33.61047 408 27.65302 454 30.66448 409 27.71849 455 30.72995 500 33.67594 40 Multipliers for Reducing Gas Volumes or Meter Readings to a Pressure Base of 1 Pound Above Atmospheric Pressure. GAUGE PRESSURE Inches of Mercury Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density -25 .13827 73^ 1.42207 34 3.14285 -24 .17014 8 1.45454 35 3.20779 -23 .20201 8/^ 1.48701 36 3.27272 -22 .23389 9 1.51948 37 3.33766 -21 .26576 93^ 1.55194 38 3.40259 -20 .29763 39 3.46753 -19 .32950 10 1.58441 -18 .36137 103^ 1.61688 40 3.53246 -17 .39324 11 1.64935 41 3.59740 -16 .42512 H3 / 2 1.68181 42 3.66233 12 1'. 71428 43 3.72727 -15 .45799 123/2 1.74675 44 3.79220 -14 .48880 13 1.77922 45 3.85714 -13 .52073 133/2 1.81168 46 3.92207 -12 .55260 14 1.84415 47 3.98701 -11 .58447 143/2 1.87662 48 4.05194 -10 .61634 49 4.11688 - 9 .64822 15 1.90909 - 8 .68009 153/2 1.94155 50 4.18181 - 7 .71196 16 1.97402 51 4.24675 - 6 .74383 163/-2 2.00649 52 4.31168 17 2.03896 53 4.37662 - 5 .77570 173^ 2.07142 54 4.44155 - 4 .80757 18 2.10389 55 4.50649 - 3 .83945 18/12 2.13636 56 4.57142 - 2 .87132 19 2.16883 57 4.63636 - 1 .90319 193/ 2.20129 58 4.70129 Atmos. .93506 59 4.76623 T K 20 2.23376 JL/D. per Sq. In. 21 2.26623 2.29870 60 fil 4.83116 4.89610 .25 .95129 21 y> 2^33116 ox 62 4^96103 .5 .96753 22 2.36363 63 5.02597 .625 .97564 223/J2 2.39610 64 5.09090 1 1.00000 23 2.42857 65 5.15584 l/^ 1.03246 23y 2 2.46103 66 5.22077 2 1.06493 24 2.49350 67 5.28571 % 1 A 1.09740 24^ 2.52597 68 5.35064 3 1.12987 69 5.41558 31/2 1.16233 25 2.55844 4 1.19480 26 2.62337 70 5.48051 4// 1.22727 27 2.68831 71 5.54545 28 2.75324 72 5.61038 5 1.25974 29 2.81818 73 5.67532 5/^j 1.29220 30 2.88311 74 5.74025 6 1.32467 31 2.94805 75 5.80519 63/2 1.35714 32 3.01298 76 5.87012 7 1.38961 33 3.07792 77 5.93506 Means "Vacuum" or minus pressure. 41 1-Pound Multipliers (Continued^ GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 78 6.00000 121 8.79220 165 11.64935 79 6.06493 122 8.85714 166 11.71428 123 8.92207 167 11.77922 80 6.12987 124 8.98701 168 11.84415 81 6.19480 125 9.05194 169 11.90909 82 6.25974 126 9.11688 83 6.32467 127 9.18181 170 11.97402 84 6.38961 128 9.24675 171 12.03896 85 6.45454 129 9.31168 172 12.10389 86 6.51948 173 12.16883 87 6.58441 130 9.37662 174 12.23376 88 6.64935 131 9.44155 175 12.29870 89 6.71428 132 9.50649 176 12.36363 133 9.57142 177 12.42857 90 6.77922 134 9.63636 178 12.49350 91 6.84415 135 9.70129 179 12.55844 92 6.90909 136 9.76623 93 6.97402 137 9.83116 180 12.62337 94 7.03896 138 9.89610 181 12.68831 95 7.10389 139 9.96103 182 12.75324 96 7.16883 183 12.81818 97 7.23376 140 10.02597 184 12.88311 98 7.29870 141 10.09090 185 12.94805 99 7.36363 142 10.15584 186 13.01298 143 10.22077 187 13.07792 100 7.42857 144 10.28571 188 13.14285 101 7.49350 145 10.35064 189 13.20779 102 7.55844 146 10.41558 103 7.62337 147 10.48051 190 13.27272 104 7.68831 148 10.54545 191 13.33766 105 7.75324 149 10.61038 192 13.40259 106 7.81818 193 13.46753 107 7.88311 150 10.67532 194 13.53246 108 7.94805 151 10.74025 195 13.59740 109 8.01298 152 10.80519 196 13.66233 153 10.87012 197 13.72727 110 8.07792 154 10.93506 198 13.79220 111 8.14285 155 11.00000 199 13.85714 112 8.20779 156 11.06493 113 8.27272 157 11.12987 200 13.92207 114 8.33766 158 11.19480 201 13.98701 115 8.40259 159 11.25974 202 14.05194 116 8.46753 203 14.11688 117 8.53246 160 11.32467 204 14.18181 118 8.59740 161 11.38961 205 14.24675 119 8.66233 162 11.45454 206 14.31168 163 11.51948 207 14.37662 120 8.72727 164 11.58441 208 14.44155 42 1-Pound Multipliers (Continued] GAUGE PRESSURE tb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 209 14.50649 252 17.29870 296 20.15584 253 17.36363 297 20.22077 210 14.57142 254 17.42857 298 20.28571 211 14.63636 255 17.49350 299 20.35064 212 14.70129 256 17.55844 213 14.76623 257 17.62337 300 20.41558 214 14.83116 258 17.68831 301 20.48051 215 14.89610 259 17.75324 302 20.54545 216 14.96103 303 20.61038 217 15.02597 260 17.81818 304 20.67532 218 15.09090 261 17.88311 305 20.74025 219 15.15584 262 17.94805 306 20.80519 263 18.01298 307 20.87012 220 15.22077 264 18.07792 308 20.93506 221 15.28571 265 18.14285 309 21.00000 222 15.35064 266 18.20779 223 15.41558 267 18.27272 310 1 21.06493 224 15.48051 268 18.33766 311 21.12987 225 15.54545 269 18.40259 312 21.19480 226 15.61038 313 21.25974 227 15.67532 270 18.46753 314 21.32467 228 15.74025 271 18.53246 315 21.38961 229 15.80519 272 18.59740 316 21.45454 273 18.66233 317 21.51948 230 15.87012 274 18.72727 318 21.58441 231 15.93506 275 18.79220 319 21.64935 232 16.00000 276 18.85714 233 16.06493 277 18.92207 320 21.71428 234 16.12987 278 18.98701 321 21.77922 235 16.19480 279 19.05194 322 21.84415 236 16.25974 323 21.90909 237 16.32467 280 19.11688 324 21.97402 238 16.38961 281 19.18181 325 22.03896 239 16.45454 282 19.24675 326 22.10389 283 19.31168 327 22.16883 240 16.51948 284 19.37662 328 22.23376 241 16.58441 285 19.44155 329 22.29870 242 16.64935 286 19.50649 243 16.71428 287 19.57142 330 22.36363 244 16.77922 288 19.63636 331 22.42857 245 16.84415 289 19.70129 332 22.49350 246 16.90909 333 22.55844 247 16.97402 290 19.76623 334 22.62337 248 17.03896 291 19.83116 335 22.68831 249 17.10389 292 19.89610 336 22.75324 293 19.96103 337 22.81818 250 17.16883 294 20.02597 338 22.88311 251 17.23376 295 20.09090 339 22.94805 43 1-Pound Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 340 23.01298 384 25.87012 428 28.72727 341 23.07792 385 25.93506 429 28.79220 342 23.14285 386 26.00000 343 23.20779 387 26.06493 430 28.85714 344 23.27272 388 26.12987 431 28.92207 345 23.33766 389 26.19480 432 28.98701 346 23.40259 433 29.05194 347 23.46753 390 26.25974 434 29.11688 348 23.53246 391 26.32467 435 29.18181 349 23.59740 392 26.38961 436 29.24675 393 26.45454 437 29.31168 350 23.66233 394 26.51948 438 29.37662 351 23.72727 395 26.58441 439 29.44155 352 23.79220 396 26.64935 353 23.85714 397 26.71428 440 29.50649 354 23.92207 398 26.77922 441 29.57142 355 23.98701 399 26.84415 442 29.63636 356 24.05194 443 29.70129 357 24.11688 400 26.90909 444 29.76623 358 24.18181 401 26.97402 445 29.83116 359 24.24675 402 27.03896 446 29.89610 403 27.10389 447 29.96103 360 24.31168 404 27.16883 448 30.02397 361 24.37662 405 27.23376 449 30.09090 362 24.44155 406 27.29870 363 24.50649 407 27.36363 450 30.15584 364 24.57142 408 27.42857 451 30.22077 365 24.63636 409 27.49350 452 30.28571 366 24.70129 453 30.35064 367 24.76623 410 27.55844 454 30.41558 368 24.83116 411 27.62337 455 30.48051 369 24.89610 412 27.68831 456 30.54545 413 27.75324 457 30.61038 370 24.96103 414 27.81818 458 30.67532 371 25.02597 415 27.88311 459 30.74025 372 25.09090 416 27.94805 373 25.15584 417 28.01298 460 30.80519 374 25.22077 418 28.07792 461 30.87012 375 25.28571 419 28.14285 462 30.93506 376 25.35064 463 31.00000 377 25.41558 420 28.20779 464 31.06493 378 25.48051 421 28.27272 465 31.12987 379 25.54545 422 28.33766 466 31.19480 423 28.40259 467 31.25974 380 25.61038 424 28.46753 468 31.32467 381 25.67532 425 28.53246 469 31.38961 382 25.74025 426 28.59740 383 25.80519 427 28.66233 470 31.45454 44 1-Pound Multipliers (Continued) GAUGE PRESSURE Multiplier GAUGE PRESSURE Multiplier GAUGE PRESSURE Multiplier Lb. per Sq. In. or Density Lb. per Sq. In. or Density Lb. per Sq. In. or Density 471 31.51948 481 32.16883 491 32.81818 472 31.58441 482 32.23376 492 32.88311 473 31.64935 483 32.29870 493 32.94805 474 31.71428 484 32.36363 494 33.01298 475 31.77922 485 32.42857 495 33.07792 476 31.84415 486 32.49350 496 33.14285 477 31.90909 487 32.55844 497 33.20779 478 31.97402 488 32.62337 498 33.27272 479 32.03896 489 32.68831 499 33.33766 480 32.10389 490 32.75324 500 33.40259 Multipliers for Reducing Gas Volumes or Meter Readings to a Pressure of 1J/2 Lb. Above Atmospheric Pressure GAUGE PRESSURE Inches of Mercury Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density -25 .13392 13 1.72327 57 4.49056 -24 .16479 14 1.78616 58 4.55345 -23 .19566 15 1.84905 59 4.61635 -22 .22653 16 1.91194 -21 .25740 17 1.97484 60 4.67924 -20 .28827 18 2.03773 61 4.74213 -19 .31914 19 2.10C62 62 4.80503 -18 .35001 63 4.86792 -17 .38088 20 2.16352 64 4.93081 -16 .41175 21 2.22641 65 4.99371 22 2.28930 66 5.05660 -15 .44262 23 2.35220 67 5.11949 -14 .47349 24 2.41509 68 5.18238 -13 .50435 25 2.47798 69 5.24528 -12 -11 -10 - 9 .53522 .56609 .59696 .62783 26 27 28 29 2.54088 2.60377 2.66666 2.72955 70 71 72 73 5.30817 5.37106 5.43396 5.49685 8 - 7 - 6 - 5 - 4 - 3 .65870 .68957 .72044 .75131 .78218 .81305 30 31 32 33 34 35 2.79245 2.85534 2.91823 2.98113 3.04402 3.10691 74 75 76 77 78 79 5.55974 5.62264 5.68553 5.74842 5.81132 5.87421 2 .84392 36 3.16981 80 5.93710 - I .87479 37 3.23270 81 6.00000 Atmos. .90566 38 3.29559 82 6.06289 Lb. 39 3.35849 83 6.12578 per Sq. In. 40 3.42138 84 OK 6.18867 f* OKI K*7 .25 .92138 41 3.48427 oO 86 O.er Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 209 13.62195 252 16.24390 296 18.92682 253 16.30487 297 18.98780 210 13.68292 254 16.36585 298 19.04878 211 13.74390 255 16.42682 299 19.10975 212 13.80487 256 16.48780 213 13.86585 257 16.54878 300 19.17073 214 13.92682 258 16.60975 301 19.23170 215 13.98780 259 16.67073 302 19.29268 216 14.04878 303 19.35365 217 14.10975 260 16.73170 304 19.41463 218 14.17073 261 16.79268 305 19.47560 219 14.23170 262 16.85365 306 19.53658 263 16.91463 307 19.59756 220 14.29268 264 16.97560 308 19.65853 221 14.35365 265 17.03658 309 19.71951 222 14.41463 266 17.09756 223 14.47560 267 17.15853 310 19.78048 224 14.53658 268 17.21951 311 19.84146 225 14.59756 269 17.28048 312 19.90243 226 14.65853 313 19.96341 227 14.71951 270 17.34146 314 20.02439 228 14.78048 271 17.40243 315 20.08536 229 14.84146 272 17.46341 316 20.14634 273 17.52439 317 20.20731 230 14.90243 274 17.58536 318 20.26829 231 14.96341 275 17.64634 319 20.32926 232 15.02439 276 17.70731 233 15.08536 277 17.76829 320 20.39024 234 15.14634 278 17.82926 321 20.45121 235 15.20731 279 17.89024 322 20.51219 236 15.26829 323 20.57317 237 15.32926 280 17.95121 324 20.63414 238 15.39024 281 18.01219 325 20.69512 239 15.45121 282 18.07317 326 20.75609 283 18.13414 327 20.81707 240 15.51219 284 18.19512 328 20.87804 241 15.57317 285 18.25609 329 20.93902 242 15.63414 286 18.31707 243 15.69512 287 18.37804 330 21.00000 244 15.75609 288 18.43902 331 21.06097 245 15.81707 289 18.50000 332 21.12195 246 15.87804 333 21.18292 247 15.93902 290 18.56097 334 21.24390 248 16.00000 291 18.62195 335 21.30487 249 16.06097 292 18.68292 336 21.36585 293 18.74390 337 21.42682 250 16.12195 294 18.80487 338 21.48780 251 16.18292 295 18.86585 339 21.54878 52 2-Pound Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 340 21.60975 384 24.29268 428 26.97560 341 21.67073 385 24.35365 429 27.03658 342 21.73170 386 24.41463 343 21.79268 387 24.47560 430 27.09756 344 21.85365 388 24.53658 431 27.15853 345 21.91463 389 24.59756 432 27,21951 346 21.97560 433 27.28048 347 22.03658 390 24.65853 434 27.34146 348 22.09756 391 24.71951 435 27.40243 349 22.15853 392 24.78048 436 27.46341 393 24.84146 437 27.52439 350 22.21951 394 24.90243 438 27.58536 351 22.28048 395 24.96341 439 27.64634 352 22.34146 396 25.02439 353 22.40243 397 25.08536 440 27.70731 354 22.46341 398 25.14634 441 27.76829 355 22.52439 399 25.20731 442 27.82926 356 22.58536 443 27.89024 357 22.64634 400 25.26829 444 27.95121 358 22.70731 401 25.32926 445 28.01219 359 22.76829 402 25.39024 446 28.07317 403 25.45121 447 28.13414 360 22.82926 404 25.51219 448 28.19512 361 22.89024 405 25.57317 449 28.25609 362 22.95121 406 25.63414 363 23.01219 407 25.69512 450 28.31707 364 23.07317 408 25.75609 451 28.37804 365 23.13414 409 25.81707 452 28.43902 366 23.19512 453 28.50000 367 23.25609 410 25.87804 454 28.56097 368 23.31707 411 25.93902 455 28.62195 369 23.37804 412 26.00000 456 28.68292 413 26.06097 457 28.74390 370 23.43902 414 26.12195 458 28.80487 371 23.50000 415 26.18292 459 28.86585 372 23.56097 416 26.24390 373 23.62195 417 26.30487 460 28.92682 374 23.68292 418 26.36585 461 28.98780 375 23.74390 419 26.42682 462 29.04878 376 23.80487 463 29.10975 377 23.86585 420 26.48780 464 29.17073 378 23.92682 421 26.54878 465 29.23170 379 23.98780 422 26.60975 466 29.29268 423 26.67073 467 29.35365 380 24.04878 424 26.73170 468 29.41463 381 24.10975 425 26.79268 469 29.47560 382 24.17073 426 26.85365 383 1 24.23170 427 26.91463 470 29.53658 53 2-Pound Multipliers (Continued) GAUGE PRESSURE Multiplier GAUGE PRESSURE Multiplier GAUGE PRESSURE Multiplier Lb. per Sq. In. or Density Lb. per Sq. In. or Density Lb. per Sq. In. or Density 471 29.59756 481 30.20731 491 30.81707 472 29.65853 482 30.26829 492 30.87804 473 29.71951 483 30.32926 493 30.93902 474 29.78048 484 30.39024 494 31.00000 475 29.84146 485 30.45121 495 31.06097 476 29.90243 486 30.51219 496 31.12195 477 29.96341 487 30.57317 497 31.18292 478 30.02439 488 30.63414 498 31.24390 479 30.08536 489 30.69512 499 31.30487 480 30.14634 490 30.75609 500 31.36585 54 Multipliers for Reducing Gas Volumes or Meter Readings to a Pressure Base of 3 Pounds Above Atmospheric Pressure GAUGE PRESSURE Inches of Mercury Multiplier or Density GAUGE PRESSURE Lb. per Sq. In Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density -^5 .12238 11 .45977 55 3.98850 -24 .15059 12 .51724 56 4.04597 -23 .17879 13 .57471 57 4.10344 -22 .20700 14 .63218 58 4.16091 -21 .23521 15 .68965 59 4.21839 -20 .26342 16 1.74712 -19 .29163 17 1.80459 60 4.27586 -18 .31983 18 1.86206 61 4.33333 -17 .34804 19 1.91954 62 4.39080 -16 .37625 63 4.44827 20 1.97701 64 4.50574 -15 .40446 21 2.03448 65 4.56321 -14 .43267 22 2.09195 66 4.62068 -13 .46088 23 2.14942 67 4.67816 -12 .48908 24 2.20689 68 4.73563 -11 .51729 25 2.26436 69 4.79310 -10 .54550 26 2.32183 - 9 .57371 27 2.37931 70 4.85057 - 8 .60192 28 2.43678 71 4.90804 7 .63012 29 2.49425 72 4.96551 - 6 .65833 73 5.02298 30 2.55172 74 5.08045 - 5 .68654 31 2.60919 75 5.13793 - 4 .71475 32 2.66666 76 5.19540 - 3 .74296 33 2.72413 77 5.25287 - 2 .77116 34 2.78160 78 5.31034 - 1 .79937 35 2.83908 79 5.36781 Atmos. .82758 36 2.89655 T K 37 2.95402 80 5.42528 IvD. per Sq. In. 38 39 3.01149 3.06896 81 82 5.48275 5.54022 .25 .84195 83 5.59770 .5 .85632 40 3.12643 84 5.65517 .75 .87068 41 3.18390 85 5.71264 1. .88505 42 3.24137 86 5.77011 1.5 .91379 43 3.29885 87 5.82758 2. .94252 44 3.35632 88 5.88505 2.5 .97126 45 3.41379 89 5.94252 3. 1.0000 46 3.47126 3 1.00000 47 3.52873 90 6.00000 4 1.05747 48 3.58620 91 6.05747 49 3.64367 92 6.11494 5 1.11494 93 6.17241 6 1.17241 50 3.70114 94 6.22988 7 1.22988 51 3.75862 95 6.28735 8 1.28735 52 3.81609 96 6.34482 9 1.34482 53 3.87356 97 6.40229 10 1.40229 54 3.93103 98 6.45977 Means "Vacuum" or minus pressure. 55 3-Pound Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 99 6.51724 142 8.98850 186 11.51724 143 9.04597 187 11.57471 100 6.57471 144 9.10344 188 11.63218 101 6.63218 145 9.16091 189 11.68965 102 6.68965 146 9.21839 103 6.74712 147 9.27586 190 11.74712 104 6.80459 148 9.33333 191 11.80459 105 6.86206 149 9.39080 192 11.86206 106 6.91954 193 11.91954 107 6.97701 150 9.44827 194 11.97701 108 7.03448 151 9.50574 195 12.03448 109 7.09195 152 9.56321 196 12.09195 153 9.62068 197 12.14942 110 7.14942 154 9.67816 198 12.20689 111 7.20689 155 9.73563 199 12.26436 112 7.26436 156 9.79310 113 7.32183 157 9.85057 200 12.32183 114 7.37931 158 9.90804 201 12.37931 115 7.43678 159 9.96551 202 12.43678 116 7.49425 203 12.49425 117 7.55172 160 10.02298 204 12.55172 118 7.60919 161 10.08045 205 12.60919 119 7.66666 162 10.13793 206 12.66666 163 10.19540 207 12.72413 120 7.72413 164 10.25287 208 12.78160 121 7.78160 165 10.31034 209 12.83908 122 7.83908 166 10.36781 123 7.89655 167 10.42528 210 12.89655 124 7.95402 168 10.48275 211 12.95402 125 8.01149 169 10.54022 212 13.01149 126 8.06896 213 13.06896 127 8.12643 170 10.59770 214 13.12643 128 8.18390 171 10.65517 215 13.18390 129 8.24137 172 10.71264 216 13.24137 173 10.77011 217 13.29885 130 8.29885 174 10.82758 218 13.35632 131 8.35632 175 10.88505 219 13.41379 132 8.41379 176 10.94252 133 8.47126 177 11.00000 220 13.47126 134 8.52873 178 11.05747 221 13.52873 135 8.58620 179 11.11494 222 13.58620 136 8.64367 223 13.64367 137 8.70114 180 11.17251 224 13.70114 138 8.75862 181 11.22988 225 13.75862 139 8.81609 182 11.28735 226 13.81609 183 11.34482 227 13.87356 140 8.87356 184 11.40229 228 13.93103 141 8.93103 185 11.45977 229 13.98850 56 3-Pound Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 230 14.04597 274 16.57471 318 19.10344 231 14.10344 275 16.63218 319 19.16091 232 14.16091 276 16.68965 233 14.21839 277 16.74712 320 19.21839 234 14.27586 278 16.80459 321 19.27586 235 14.33333 279 16.86206 322 19.33333 236 14.39080 323 19.39080 237 14.44827 280 16.91954 324 19.44827 238 14.50574 281 16.97701 325 19.50574 239 14.56321 282 17.03448 326 19.56321 283 17.09195 327 19.62068 240 14.62068 284 17.14942 328 19.67816 241 14.67816 285 17.20689 329 19.73563 242 14.73563 286 17.26436 243 14.79310 287 17.32183 330 19.79310 244 14.85057 288 17.37931 331 19.85057 245 14.90804 289 17.43678 332 19.90804 246 14.96551 333 19.96551 247 15.02298 290 17.49425 334 20.02298 248 15.08045 291 17.55172 335 20.08045 249 15.13793 292 17.60919 336 20.13793 293 17.66666 337 20.19540 250 15.19540 294 17.72413 338 20.25287 251 15.25287 295 17.78160 339 20.31034 252 15.31034 296 17.83908 253 15.36781 297 17.89655 340 20.36781 254 15.42528 298 17.95402 341 20.42528 255 15.48275 299 18.01149 342 20.48275 256 15.54022 343 20.54022 257 15.59770 300 18.06896 . 344 20.59770 258 15.65517 301 18.12643 345 20.65517 259 15.71264 302 18.18390 346 20.71264 303 18.24137 347 20.77011 260 15.77011 304 18.29885 348 20.82758 261 15.82758 305 18.35632 349 20.88505 262 15.88505 306 18.41379 263 15.94252 307 18.47126 350 20.94252 264 16.00000 308 18.52873 351 21.00000 265 16.05747 309 18.58620 352 21.05747 266 16.11494 353 21.11494 267 16.17241 310 18.64367 354 21.17241 268 16.22988 311 18.70114 355 21.22988 269 16.28735 312 18.75862 356 21.28735 313 18.81609 357 21.34482 270 16.34482 314 18.87356 358 21.40229 271 16.40229 315 18.93103 359 21.45976 272 16.45977 316 18.98850 273 16.51724 317 19.04597 360 21.51724 3-Pound Multipliers (Continued) GAUGE PRESSURE Lb. per Sq. In. Multiplier or Destiny GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density GAUGE PRESSURE Lb. per Sq. In. Multiplier or Density 361 21.57471 405 24.10344 449 26.63218 362 21.63218 406 24.16091 363 21.68965 407 24.21839 450 26.68965 364 21.74712 408 24.27586 451 26.74712 365 21.80459 409 24.33333 452 26.80459 366 21.86206 453 26.86206 367 21.91954 410 24.39080 454 26.91954 368 21.97701 411 24.44827 455 26.97701 369 22.03448 412 24.50574 456 27.03448 413 24.56321 457 27.09195 370 22.09195 414 24.62068 458 27.14942 371 22.14942 415 24.67816 459 27.20689 372 22.20689 416 24.73563 373 22.26438 417 24.79310 460 27.26436 374 22.32183 418 24.85057 461 27.32183 375 22.37931 419 24.90804 462 27.37931 376 22.43678 463 27.43678 377 22.49425 420 24.96551 464 27.49425 378 22.55172 421 25.02298 465 27.55172 379 422 25.08045 466 27.60919 22.60919 423 25.13793 467 27.66666 380 22.66666 424 25.19540 468 27.72413 381 22.72413 425 25.25287 469 27.78160 382 22.78160 426 25.31034 383 22.83908 427 25.36781 470 27.83908 384 22.89655 428 25.42528 471 27.89655 385 22.95402 429 25.48275 472 27.95402 386 23.01149 473 28.01149 387 23.06896 430 25.54022 474 28.06896 388 23.12643 431 25.59770 475 28.12643 389 23.18390 432 25.65517 476 28.18390 433 25.71264 477 28.24137 390 23.24137 434 25.77011 478 28.29885 391 23.29885 435 25.82758 479 28.35632 392 23.35632 436 25.88505 393 23.41379 437 25.94252 480 28.41379 394 23.47126 438 26.00000 481 28.47126 395 23.52873 439 26.05747 482 28.52873 396 23.58620 483 28.58620 397 23.64367 440 26.11494 484 28.64367 398 23.70114 441 26.17241 485 28.70114 399 23.75862 442 26.22988 486 28.75862 443 26.28735 487 28.81609 400 23.81609 444 26.34482 488 28.87356 401 23.87356 445 26.40229 489 28.93103 402 23.93103 446 26.45977 403 23.98850 447 26.51724 490 28.98850 404 24.04597 448 26.57471 491 29.04597 58 3-Pound Multipliers '(Continued.} GAUGE PRESSURE Multiplier GAUGE PRESSURE Multiplier GAUGE PRESSURE Multiplier Lb. per Sq. In. or Density Lb. per Sq. In. or Density Lb. per Sq. In. or Density 492 29.10344 495 29.27586 498 29.44827 493 29.16091 496 29.33333 499 29.50574 494 29.21839 497 29.39080 t 500 29.56321 HAND-BOOK OK NATURAL GAS By HENRY P. WESTCOTT MEMBER A . S . M . E . AND NATURAL GAS ASSOCIATION \ PRACTICAL BOOK for practical workers, ^*- based on many years of experience of scores of active gas men, and covering the entire subject of Natural Gas from geology to the consumer. .*. Containing 188 valuable Tables on Pipe Line Capacities, etc. Nearly 160 Illustrations from photographs and drawings- Various Formulae and Tables of complete mathematical calculations worked out in detail. Everything Regarding Natural Gas from the Gas Sand to the Gas Range. Pocket Size, 520 pages (4f7"). Clearly printed from new type on specially made paper restful to the eye. Silk cloth, title in gold, $3.50. Postpaid. PUBLISHED BY METRIC METAL WORKS, ERIE, PENN'A, U. S. A. TK 456251 UNIVERSITY QF CALIFORNIA LIBRARY