MA28C -- INDUSTRIAL GASES CURRENT INDUSTRIAL REPORTS 1994 Industrial Gases Issued October 4, 1995 REVISED October 5, 1995 Contact person: Susan Pasdar (301) 457-4791 Table 1. PRODUCTION AND SHIPMENTS OF SELECTED INDUSTRIAL GASES: 1991 TO 1994 (Value in millions of dollars) Shipments Product Product Unit code and year of measure Production Quantity Value 28132 00 Acetylene: 1994..............Billion cu. ft...... 5.4 2.9 151.8 1993..............do.................. 5.2 2.7 r/ 134.1 1992..............do.................. 5.3 2.9 141.6 1991..............do.................. 5.5 2.9 135.7 28133 00 Carbon dioxide: Gas: 1994............1,000 short tons. 6,744.7 6,336.3 64.4 1993............do.................. 6,816.4 r/ 6,402.5 73.4 1992............do.................. 6,936.5 6,538.5 75.0 1991............do.................. 7,949.4 7,644.7 76.3 Liquid: 1994............1,000 short tons. 5,899.2 5,727.0 242.9 1993............do.................. 5,543.4 5,266.2 230.8 1992............do................. 5,542.0 5,372.9 230.4 1991............do.................. 5,001.2 4,853.2 267.4 Solid (dry ice): 1994............1,000 short tons. 288.0 286.8 30.9 1993............do.................. 295.9 294.9 29.9 1992............do.................. 262.0 261.2 27.2 1991............do.................. 267.2 266.6 30.6 28135 00 Nitrogen: 1994..............Billion cu. ft...... 881.7 839.2 1,077.0 1993..............do.................. 795.5 751.3 1,070.8 1992..............do.................. 818.5 792.9 981.5 1991..............do.................. 769.9 753.1 953.7 28136 00 Oxygen: 1994..............Billion cu. ft...... 605.0 564.7 878.7 1993..............do.................. 547.1 522.9 869.1 1992..............do.................. 525.2 498.9 767.3 1991..............do.................. 469.7 446.6 767.0 28137 pt. Hydrogen: 1994..............Billion cu. ft...... 254.2 121.3 283.5 1993..............do.................. 212.9 96.5 264.2 1992..............do.................. 162.2 84.3 259.7 1991..............do.................. 152.7 79.9 226.8 r/ Revised by 5 percent or more from previously published figures. pt. Part. Address inquiries concerning these figures to U.S. Department of Commerce, Bureau of the Census, Manufacturing and Construction Division, Washington, D.C., or contact Suzanne Pasdar, (301) 457-4791. Table 2. QUANTITY OF PRIMARY PRODUCTION OF SPECIFIED INDUSTRIAL GASES: 1994 AND 1993. (value in thousands of dollars) 1994 1993 Product Unit of code Product description measure Production Quantity Value Production Quantity Value 2813- -- Industrial gases........................................(X)....... (X) (X) 3,291,578 (X) (X) 3,182,193 28132 00 Acetylene 1)..........................................Mil. cu. ft.... 5,366 2,922 151,739 5,167 2,701 r/ 134,061 28132 11 Produced for compression, including cylinder and pipeline...............................do............. 767 742 79,268 r/ 757 r/ 736 r/ 71,201 28132 21 Produced for pipeline shipment (excluding that shipped to be compressed) and for consumption in this plant...................do............. 4,599 2,180 72,471 4,410 1,965 62,860 28133 00 Carbon dioxide 2).....................................Short tons..... 12,931,877 12,350,017 338,090 12,655,727 11,963,588 334,103 28133 01 Gas (include amounts produced and liquefied)..........................................do............. 6,744,710 6,336,270 64,374 6,816,375 r/ 6,402,507 73,400 28133 02 Liquid (include amounts produced and used to make dry ice)...............................do............. 5,899,209 5,726,978 242,851 5,543,442 5,266,220 230,773 28133 31 Solid (dry ice).....................................do............. 287,958 286,769 30,865 295,910 294,861 29,930 28135 00 Nitrogen 3)...........................................Mil. cu. ft.... 881,700 839,246 1,076,962 795,519 751,318 1,070,838 Gas produced by: 28135 22 Cryogenic on-site and pipeline AND 28135 23 Noncryogenic processes (psa, vpsa, membranes, etc.) by industrial gas producing companies.........do............. 606,656 591,718 488,737 534,179 513,941 440,454 Captive uses for consumption in this plant: 28135 24 Cryogenic processes AND 28135 26 Noncryogenic processes (psa, vpsa, membranes, etc.)do............. 4/ 27,529 (X) (X) 4/ 22,909 (X) (X) Liquid produced for: 28135 12 Merchant shipment...................................do............. 233,258 233,561 542,516 225,494 224,630 587,477 28135 32 Consumption in this plant...........................do............. (4) (4) 28135 34 Supplemental shipments or uses......................do............. 14,257 13,967 45,709 12,937 12,747 42,907 28136 00 Oxygen................................................do............. 604,955 564,697 878,717 547,133 522,938 869,096 Gas produced by: 28136 22 Cryogenic on-site and pipeline AND 28136 23 Noncryogenic processes (psa, vpsa, membranes, etc.) by industrial gas producing companies.........do............. 455,130 444,006 560,947 407,776 407,790 534,217 Captive uses for consumption in this plant: 28136 24 Cryogenic processes AND 28136 26 Noncryogenic processes (psa, vpsa, membranes, etc.)do............. 5/ 28,702 (X) (X) 5/ 25,225 (X) (X) Liquid produced for: 28136 12 Merchant shipment...................................do............. 110,362 110,116 285,457 104,699 106,023 309,908 28136 32 Consumption in this plant...........................do............. (5) (X) (X) (5) (X) (X) 28136 34 Supplemental shipments or uses......................do............. 10,761 10,575 32,313 9,433 9,125 24,971 28137 00 Elemental gases and other industrial gases n.e.c......Mil. cu. ft.... (X) (X) 803,571 (X) (X) 733,801 Argon................................................do............. (D) (D) (D) (D) (D) (D) 28137 11 Argon, crude........................................do............. (D) (D) (D) (D) (D) (D) 28137 15 Argon, high purity, produced for cylinder and bulk delivery and pipeline shipments, and for consumption in this plant.......................................do............. 18,177 17,840 285,477 15,621 14,988 261,018 Helium 6/............................................do............. 3,620 3,620 (X) 3,445 3,445 (X) Hydrogen 7/..........................................do............. 254,184 121,277 283,530 212,874 96,458 264,241 Gas produced for: 28137 22 Merchant shipment AND 28137 32 Pipeline and on-site use...........................do............. 8/ 135,098 121,277 283,530 8/ r/105,655 96,458 264,241 28137 42 Consumption in this plant..........................do............. 119,086 (X) (X) 107,219 (X) (X) Liquid produced for: 28137 52 Merchant shipment AND 28137 62 Supplemental shipments or uses.....................do............. (8) (8) (8) (8) (8) (8) 28137 90 Other elemental gases.....................................(X)....... (X) (X) (D) (X) (X) (D) 28137 71 Nitrous oxide AND 28137 98 Other compressed and liquefied gases 9/...................(X)....... (X) (X) 133,563 (X) (X) r/ 124,187 28130 00 Industrial gases n.s.k.....................................(X)....... (X) (X) 42,499 (X) (X) 40,294 Note: N.s.k. represents the value of shipments for establishments which did not provide detailed information by type of product. These establishments, typically with less than 5 employees, are not included on the MA28C mailing panel. The n.s.k. value has been estimated based on the rate of change for the reporting establishments applied to the previous year's figures. (D) Data withheld to avoid disclosing figures for individual companies. N.e.c. Not elsewhere classified. N.s.k. Not specified by kind. r/ Revised by 5 percent or more from previously published figures. (X) Not applicable. 1/ Excludes information from railroad ships, shipyards, welding shops, and small establishments using portable generators. 2/ Excludes quantities produced and consumed in plants manufacturing soda ash or urea. Carbon dioxide gas figures should be used with caution since the data includes figures for gas produced in the production of petroleum whose data is difficult to measure. 3/ Excludes amounts produced and consumed in the manufacturing of synthetic ammonia or ammonia derivatives. 4/ Product code 28135 32 has been combined with product codes 28135 24 and 28135 26 to avoid disclosing figures for individual companies. 5/ Product code 28136 32 has been combined with product codes 28136 24 and 28136 26 to avoid disclosing figures for individual companies. 6/ Source: U.S. Department of Interior, Bureau of Mines. 7/ Excludes amounts vented, used as fuel, etc., and amounts produced and consumed in the manufacturing of synthetic ammonia and methanol, but includes an unspecified amount produced for sale or interplant transfer to plants consuming this gas in the production of ammonia. Also excludes amounts produced by the ammonia dissociation process (cracking of ammonia). Also excludes amounts produced in petroleum refineries for captive use. 8/ Product codes 28137 52 and 28137 62 are combined with product codes 28137 22 and 28137 32 to avoid disclosing figures for individual companies. 9/ Excludes hydrocarbon gases such as propane, butane, and propylene, or halogenated hydrocarbons and cyclopropane, which are published in the U.S. International Trade Commission annual report, Synthetic Organic Chemicals. Also, excludes sulfur dioxide and chlorine data, which are shown in Current Industrial Reports Series, MA28A(94)-1 Inorganic Chemicals. Table 3. PRODUCTION AND SHIPMENTS OF ACETYLENE, BY GEOGRAPHIC AREA: 1994 AND 1993 (Quantities in million cubic feet, value in thousands of dollars) 1994 1993 Geographic area Shipments Shipments Production Quantity Value Production Quantity Value Total...................... 5,366 2,922 151,739 5,167 2,701 r/ 134,061 Northeast Region............... 62 65 5,054 77 r/ 75 5,458 North Central Region........... 217 209 28,038 225 209 20,194 East North Central........... 149 142 21,524 160 144 13,867 West North Central........... 68 67 6,514 65 65 6,327 South Region................... 4,946 2,523 105,943 4,708 2,256 r/ 91,497 South Atlantic and East South Central..................... 678 673 44,254 651 642 39,998 West South Central........... 4,268 1,850 61,689 4,057 1,614 r/ 51,499 West Region.................... 141 125 12,704 157 161 16,912 Mountain..................... 29 26 2,829 26 26 2,488 Pacific...................... 112 99 9,875 131 135 14,424 See note at end of Table 6. r/ Revised by 5 percent or more from previously published figures. Table 4. PRODUCTION AND SHIPMENTS OF CARBON DIOXIDE, BY GEOGRAPHIC AREA: 1994 AND 1993 (Quantities in short tons, value in thousands of dollars) Liquid Solid (dry ice) Geographic area Shipments Shipments Production Quantity Value Production Quantity Value 1994 Total......................... 5,899,209 5,726,978 242,851 287,958 286,769 30,865 Northeast Region................ (1) (1) (1) (1) (1) (1) North Central Region............ 1,706,555 1,666,123 62,547 152,322 152,071 14,258 East North Central............ 1/ 1,234,782 1/ 1,224,789 1/ 49,799 1/ 78,279 1/ 79,124 1/ 8,716 West North Central............ 471,773 441,334 12,748 74,043 72,947 5,542 South Region.................... 3,010,003 2,892,803 119,334 84,951 83,505 9,830 South Atlantic and East South 1,732,732 1,656,359 56,286 43,747 43,681 4,661 West South Central............ 1,277,271 1,236,444 63,048 41,204 39,824 5,169 West Region..................... 1,182,651 1,168,052 60,970 50,685 51,193 6,777 Mountain...................... 375,056 336,435 19,013 20,788 20,788 1,796 Pacific....................... 807,595 831,617 41,957 29,897 30,405 4,981 1993 Total......................... 5,543,442 5,266,220 230,773 295,910 294,861 29,930 Northeast Region................ (1) (1) (1) (1) (1) (1) North Central Region............ 1,465,045 1,338,157 r/ 50,054 164,543 163,830 14,955 East North Central............ 1/ 1,046,692 1/ r/ 952,662 1/ r/ 40,049 1/ 86,568 1/ 86,660 1/ 8,996 West North Central............ 418,353 385,495 10,005 r/ 77,975 r/ 77,170 r/ 5,959 South Region.................... 2,958,658 2,828,739 121,438 r/ 78,940 r/ 78,530 r/ 8,337 South Atlantic and East South Central...................... 1,878,706 1,799,753 71,609 43,894 43,816 4,090 West South Central............ 1,079,952 1,028,986 r/ 49,829 r/ 35,046 r/ 34,714 r/ 4,247 West Region..................... 1,119,739 1,099,324 59,281 52,427 52,501 6,638 Mountain...................... 363,271 319,668 17,990 18,114 18,114 1,447 Pacific....................... 756,468 779,656 41,291 34,313 34,387 5,191 See note at end of Table 6. r/ Revised by 5 percent or more from previously published figures. 1/ Totals for Northeast region are combined with East North Central to avoid disclosing figures for individual companies. Table 5. PRODUCTION AND SHIPMENTS OF ARGON AND HYDROGEN, BY GEOGRAPHIC AREA: 1994 AND 1993 (Quantities in million cubic feet, value in thousands of dollars) ARGON Geographic area 1994 1993 Shipments Shipments Production Quantity Value Production Quantity Value Total....................... (D) (D) (D) (D) (D) (D) Northeast Region................. 1,231 1,302 19,162 1,212 1,206 21,019 North Central Region............. (D) (D) (D) (D) (D) (D) East North Central Division.... 7,541 7,566 107,126 6,543 6,539 105,309 West North Central Division.... (D) (D) (D) (D) (D) (D) South Region..................... 9,581 9,194 149,714 8,028 7,406 r/ 125,969 South Atlantic Division........ 1,897 1,904 37,274 1,589 1,591 32,230 East South Central Division.... 1,337 1,341 18,906 1,245 1,245 18,721 West South Central Division.... 6,347 5,949 93,534 5,194 4,570 r/ 75,018 West Region...................... 1,261 1,284 24,502 1,116 1,119 22,856 HYDROGEN Geographic area 1994 1993 Shipments Shipments Production Quantity Value Production Quantity Value Total....................... 254,184 121,277 283,530 212,874 96,458 264,241 Northeast Region................. 20,215 8,316 29,646 17,972 8,508 34,294 North Central Region............. 27,607 3,589 12,300 20,862 3,802 11,346 East North Central Division.... (D) (D) (D) (D) (D) (D) West North Central Division.... (D) (D) (D) (D) (D) (D) South Region..................... 188,806 (D) (D) r/ 157,029 (D) (D) South Atlantic Division........ 9,546 2,474 9,678 7,747 2,339 8,917 East South Central Division.... 4,140 (D) (D) 3,359 (D) (D) West South Central Division.... 175,120 103,609 213,378 r/ 145,923 78,653 r/ 190,793 West Region...................... 17,556 (D) (D) 17,011 (D) (D) See note at end of Table 6. (D) Data withheld to avoid disclosing figures for individual companies. r/ Revised by 5 percent or more from previously published figures. Table 6. PRODUCTION AND SHIPMENTS OF LIQUID NITROGEN AND OXYGEN PRODUCED FOR MERCHANT SHIPMENT, BY GEOGRAPHIC AREA: 1994 AND 1993 (Quantities in million cubic feet, value in thousands of dollars) NITROGEN Geographic area 1994 1993 Shipments Shipments Production Quantity Value Production Quantity Value Total....................... 233,258 233,561 542,516 225,494 224,630 587,477 Northeast Region................. 42,728 42,758 85,381 40,565 41,377 108,019 North Central Region............. 62,089 62,854 143,019 69,162 67,705 162,479 East North Central Division.... (D) (D) (D) (D) (D) (D) West North Central Division.... (D) (D) (D) (D) (D) (D) South Region..................... 89,100 88,841 207,601 74,989 74,810 200,208 South Atlantic Division........ 41,701 41,564 93,127 32,877 32,868 88,844 East South Central Division.... 15,627 15,417 38,220 13,820 13,544 34,583 West South Central Division.... 31,772 31,860 76,254 28,292 28,398 76,781 West Region...................... 39,341 39,108 106,515 40,778 40,738 116,771 OXYGEN Geographic area 1994 1993 Shipments Shipments Production Quantity Value Production Quantity Value Total....................... 110,362 110,116 285,457 104,699 106,023 309,908 Northeast Region................. 21,671 21,764 51,941 18,172 18,438 49,951 North Central Region............. 28,620 28,950 69,069 27,615 28,685 r/76,686 East North Central Division.... (D) (D) (D) (D) (D) (D) West North Central Division.... (D) (D) (D) (D) (D) (D) South Region..................... 46,731 46,948 124,941 44,418 44,366 137,087 South Atlantic Division........ 23,817 24,003 59,276 21,635 21,628 67,792 East South Central Division.... 10,130 10,128 27,882 10,875 10,846 29,963 West South Central Division.... 12,784 12,817 37,783 11,908 11,892 39,332 West Region...................... 13,340 12,454 39,506 14,494 14,534 46,184 Note: Northeast Region: Maine, New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, New York, New Jersey, and Pennsylvania. North Central Region East North Central Division: Ohio, Indiana, Illinois, Michigan, and Wisconsin. West North Central Division: Minnesota, Iowa, Missouri, N.Dakota, S. Dakota Nebraska, and Kansas. South Region: South Atlantic Division: Delaware, Maryland, District of Columbia, Virginia, West Virginia, N. Carolina, S. Carolina, Georgia, and Florida. East South Central Division: Kentucky, Tennessee, Alabama, and Mississippi. West South Central Division: Arkansas, Louisiana, Oklahoma, Texas West Region: Mountain: Montana, Idaho, Wyoming, Colorado, New Mexico, Arizona, Utah, and Nevada. Pacific: Washington, Oregon, California. Alaska, and Hawaii. (D) Data withheld to avoid disclosing figures for individual companies. r/ Revised by 5 percent or more from previously published figure. Table 7. QUANTITY OF PRIMARY PRODUCTION, BY QUARTER, OF SPECIFIED INDUSTRIAL GASES: 1994 AND 1993 (Production in million cubic feet, except where otherwise noted) Product First Second Third Fourth code Product description Total Quarter Quarter Quarter Quarter 28132 00 Acetylene 1)................................ 1994 5,366 1,364 1,283 1,333 1,386 1993 5,167 1,221 1,286 1,313 1,347 28132 11 Produced for compression, including cylinder and pipeline..................... 1994 767 203 181 175 208 1993 757 r/ 200 187 r/ 166 r/ 204 28132 21 Produced for pipeline shipment (excluding that shipped to be compressed) and for consumption in this plant......... 1994 4,599 (S) (S) (S) (S) 1993 4,410 (S) (S) (S) (S) Carbon dioxide: 2) 28133 01 Gas (include amounts produced and liquefied) (short tons).................. 1994 6,744,710 (S) (S) (S) (S) 1993 6,816,375 (S) (S) (S) (S) 28133 02 Liquid (include amounts produced and used to make dry ice) (short tons)....... 1994 5,899,209 1,305,533 1,453,971 1,604,204 1,535,501 1993 5,543,442 1,333,915 1,389,466 1,550,271 1,269,790 28133 31 Solid (dry ice) (short tons)............. 1994 287,958 64,200 68,142 90,781 64,835 1993 295,910 66,312 75,245 84,269 70,084 Argon, high purity: 28137 15 Produced for cylinder and bulk delivery and pipeline shipments, and for consumption in this plant................. 1994 18,177 4,146 4,325 4,793 4,913 1993 15,621 3,790 3,799 3,902 4,130 Hydrogen 3)................................. 1994 254,184 54,731 64,544 72,094 62,815 1993 212,874 52,867 51,240 56,781 r/ 51,986 Gas produced for: 28137 22 Merchant shipment AND 28137 32 Pipeline and on-site use.................. 1994 4/ 135,098 4/ 32,699 4/ 33,722 4/ 39,717 4/ 28,961 1993 r/ 4/ 105,655 4/ 26,284 4/ 24,925 4/ 29,556 r/ 24,890 28137 42 Consumption in this plant................. 1994 119,086 22,032 30,823 32,377 33,854 1993 107,219 26,583 26,315 27,225 27,096 Liquid produced for: 28137 52 Merchant shipment AND 28137 62 Other shipments or uses................... 1994 (4) (4) (4) (4) (4) 1993 (4) (4) (4) (4) (4) 28135 00 Nitrogen 5)................................. 1994 881,700 221,829 219,343 220,139 220,389 1993 795,519 197,547 197,029 199,514 201,429 Gas produced by: 28135 22 Cryogenic on-site and pipeline AND 28135 23 Noncryogenic processes (psa, vpsa, membranes, etc.) by industrial gas producing companies....................... 1994 606,656 153,719 152,712 149,161 151,064 1993 534,179 135,633 132,536 132,768 133,242 Captive uses for consumption in this plant (user owned): 28135 24 Cryogenic processes AND 28135 26 Noncryogenic processes (psa,vpsa, membrane etc.)........................... 1994 6/ 27,529 6/ 7,573 6/ 7,115 6/ 6,939 6/ 5,902 1993 6/ 22,909 6/ 4,925 6/ 5,364 6/ 5,708 6/ 6,912 Liquid produced for: 28135 12 Merchant shipment......................... 1994 233,258 56,498 56,335 60,571 59,854 1993 225,494 54,012 56,027 57,605 57,850 28135 32 Consumption in this plant................. 1994 (6) (6) (6) (6) (6) 1993 (6) (6) (6) (6) (6) 28135 34 Other shipments or uses................... 1994 14,257 4,039 3,181 3,468 3,569 1993 12,937 2,977 3,102 3,433 3,425 28136 00 Oxygen...................................... 1994 604,955 145,070 147,264 152,054 160,567 1993 547,133 131,387 131,745 141,188 142,813 Gas produced by: 28136 22 Cryogenic on-site and pipeline AND 28136 23 Noncryogenic processes (psa, vpsa, membranes, etc.) by industrial gas producing companies....................... 1994 455,130 107,817 110,618 115,373 121,322 1993 407,776 97,384 99,456 105,144 105,792 Captive uses for consumption in this plant (user owned): 28136 24 Cryogenic processes AND 28136 26 Noncryogenic processes (psa,vpsa, membrane etc.)........................... 1994 7/ 28,702 7/ (S) 7/ (S) 7/ (S) 7/ (S) 1993 7/ 25,225 7/ (S) 7/ (S) 7/ (S) 7/ (S) Liquid produced for: 28136 12 Merchant shipment......................... 1994 110,362 26,805 26,833 28,466 28,258 1993 104,699 25,338 24,847 26,999 27,515 28136 32 Consumption in this plant................. 1994 (7) (7) (7) (7) (7) 1993 (7) (7) (7) (7) (7) 28136 34 Other shipments or uses................... 1994 10,761 2,872 2,660 2,605 2,624 1993 9,433 2,209 2,265 2,241 2,718 r/Revised by 5 percent or more from previously published figures. (S) Suppressed. Data did not meet the publication standards of the Bureau of the Census. 1/Excludes information from railroad ships, shipyards, welding shops, and small establishments using portable generators. 2/Excludes quantities produced and consumed in plants manufacturing soda ash and urea. 3/Excludes amounts vented, used as fuel, etc., and amounts produced and consumed in the manufacturing of synthetic ammonia and methanol, but includes an unspecified amount produced for sale or interplant transfer to plants consuming this gas in the production of ammonia. Also excludes amounts produced by the ammonia dissociation process (cracking of ammonia). Also excludes amounts produced in petroleum refineries for captive use. 4/Product codes 28137 52 and 28137 62 have been combined with product codes 28137 22 and 28137 32 to avoid disclosing figures for individual companies. 5/Excludes amounts produced and consumed in the manufacturing of synthetic ammonia derivatives. 6/Product code 28315 32 has been combined with product codes 28135 24 and 28135 26 to avoid disclosing figures for individual companies. 7/Product code 28136 32 has been combined with product codes 28136 24 and 28136 26 to avoid disclosing figures for individual companies. Table 8. PRODUCTION, EXPORTS, IMPORTS, AND APPARENT CONSUMPTION OF INDUSTRIAL GASES: 1994 AND 1993 Percent Exports Percent exports imports Product Product description Unit of Manufacturers' of domestic to manufacturers' Imports for Apparent to apparent code measure Year production merchandise 1 production consumption 2 consumption 3 consumption 28133 01 28133 02 Carbon dioxide (gas, liquid,.........Metric tons...... 1994 11,729,212 111,893 1.0 16,123 11,633,442 0.1 28133 31 and solid) 1993 11,478,618 109,271 1.0 26,349 11,395,696 0.2 28137 15 Argon (high purity)..................Mil. cu. meters.. 1994 509 141 27.7 19 387 4.9 1993 437 107 24.5 23 353 6.5 28137 22 28137 32 28137 42 Hydrogen.............................Mil. cu. meters.. 1994 7,117 196 2.8 134 7,055 1.9 28137 52 1993 5,960 122 2 114 5,952 1.9 28137 62 28135 00 Nitrogen.............................Mil. cu. meters.. 1994 24,688 68 0.3 325 24,945 1.3 1993 22,275 49 0.2 99 22,325 0.4 28136 00 Oxygen...............................Mil. cu. meters.. 1994 16,939 91 0.5 17 16,865 0.1 1993 15,320 59 0.4 9 15,270 0.1 Note: For comparison of Standard Industrial Classification (SIC)-based product codes, Schedule B export numbers, and HTSUSA import numbers, see Table 9. 1/Source: Bureau of the Census report EM 545, U.S. Exports. 2/Source: Bureau of the Census report IM 145, U.S. Imports for Consumption. 3/Apparent consumption is derived by subtracting exports from the total of production plus imports. Table 9. COMPARISON OF STANDARD INDUSTRIAL CLASSIFICATION-BASED PRODUCT CODES, SCHEDULE B EXPORT NUMBERS, AND HTSUSA IMPORT NUMBERS: 1994 Product Export Import code Product description number 1 number 2 28133 01 28133 02 Carbon dioxide (gas, liquid,........ 2811.21.0000 2811.21.0000 28133 31 and solid) 28137 15 Argon................................ 2804.21.0000 2804.21.0000 28137 22 28137 32 28137 42 Hydrogen............................. 2804.10.0000 2804.10.0000 28137 52 28137 62 28135 00 Nitrogen............................. 2804.30.0000 2804.30.0000 28136 00 Oxygen............................... 2804.40.0000 2804.40.0000 1/Source: 1994 edition, Harmonized System-Based Schedule B, Statistical Classification of Domestic and Foreign Commodities Exported from the United States. 2/Source: Harmonized Tariff Schedule of the United States, Annotated (1994). lding shops, and small establishments using portable generators. 2/Excludes quant