## ELECTRONIC CODE OF FEDERAL REGULATIONS

e-CFR Data is current as of February 26, 2014

Title 40: Protection of Environment PART 98—MANDATORY GREENHOUSE GAS REPORTING Subpart A—General Provision

TABLE A-1 TOS UBPARTA OFP ART98—G LOBALWARMING P OTENTIALS

G LOBALWARMING P OTENTIALS

[100-Year Time Horizon]

Name CAS No. Chemical formula Global warming potential (100 yr.) Carbon dioxide 124-38-9 CO 2 1 Methane 74-82-8 CH 4 a25 Nitrous oxide 10024-97-2 N 2 O a298 HFC-23 75-46-7 CHF 3 a 14,800 HFC-32 75-10-5 CH 2 F 2 a 675 HFC-41 593-53-3 CH 3 F a 92 HFC-125 354-33-6 C 2 HF 5 a3,500 HFC-134 359-35-3 C 2 H 2 F 4 a 1,100 HFC-134a 811-97-2 CH 2 FCF 3 a 1,430 HFC-143 430-66-0 C 2 H 3 F 3 a 353 HFC-143a 420-46-2 C 2 H 3 F 3 a4,470 HFC-152 624-72-6 CH 2 FCH 2 F 53 HFC-152a 75-37-6 CH 3 CHF 2 a 124 HFC-161 353-36-6 CH 3 CH 2 F 12 HFC-227ea 431-89-0 C 3 HF 7 a3,220 HFC-236cb 677-56-5 CH 2 FCF 2 CF 3 1,340 HFC-236ea 431-63-0 CHF 2 CHFCF 3 1,370 HFC-236fa 690-39-1 C 3 H 2 F 6 a 9,810 HFC-245ca 679-86-7 C 3 H 3 F 5 a 693 HFC-245fa 460-73-1 CHF 2 CH 2 CF 3 1,030 HFC-365mfc 406-58-6 CH 3 CF 2 CH 2 CF 3 794 HFC-43-10mee 138495-42- 8 CF 3 CFHCFHCF 2 CF 3 a 1,640

Sulfur hexafluoride 2551-62-4 SF 6 a22,800 Trifluoromethyl sulphur pentafluoride 373-80-8 SF 5 CF 3 17,700 Nitrogen trifluoride 7783-54-2 NF 3 17,200 

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...PFC-14 (Perfluoromethane) 75-73-0 CF 4 a7,390 PFC-116 (Perfluoroethane) 76-16-4 C 2 F 6 a 12,200 PFC-218 (Perfluoropropane) 76-19-7 C 3 F 8 a8,830 Perfluorocyclopropane 931-91-9 C-C 3 F 6 17,340 PFC-3-1-10 (Perfluorobutane) 355-25-9 C 4 F 10 a8,860 PFC-318 (Perfluorocyclobutane) 115-25-3 C-C 4 F 8 a 10,300 PFC-4-1-12 (Perfluoropentane) 678-26-2 C 5 F 12 a 9,160 PFC-5-1-14 (Perfluorohexane, FC-72) 355-42-0 C 6 F 14 a 9,300 PFC-9-1-18 306-94-5 C 10 F 18 7,500 HCFE-235da2 (Isoflurane) 26675-46-7 CHF 2 OCHClCF 3 350HFE-43-10pccc (H-Galden 1040x, HG11) E1730133 CHF 2 OCF 2 OC 2 F 4 OCHF 2 1,870

HFE-125 3822-68-2 CHF 2 OCF 3 14,900 HFE-134 (HG-00) 1691-17-4 CHF 2 OCHF 2 6,320 HFE-143a 421-14-7 CH 3 OCF 3 756 HFE-227ea 2356-62-9 CF 3 CHFOCF 3 1,540 HFE-236ca12 (HG-10) 78522-47-1 CHF 2 OCF 2 OCHF 2 2,800 HFE-236ea2 (Desflurane) 57041-67-5 CHF 2 OCHFCF 3 989 HFE-236fa 20193-67-3 CF 3 CH 2 OCF 3 487 HFE-245cb2 22410-44-2 CH 3 OCF 2 CF 3 708 HFE-245fa1 84011-15-4 CHF 2 CH 2 OCF 3 286 HFE-245fa2 1885-48-9 CHF 2 OCH 2 CF 3 659 HFE-254cb2 425-88-7 CH 3 OCF 2 CHF 2 359 HFE-263fb2 460-43-5 CF 3 CH 2 OCH 3 11 HFE-329mcc2 134769-21- 4 CF 3 CF 2 OCF 2 CHF 2 919

HFE-338mcf2 156053-88- 2 CF 3 CF 2 OCH 2 CF 3 552
HFE-338pcc13 (HG-01) 188690-78- 0 CHF 2 OCF 2 CF 2 OCHF 2 1,500
HFE-347mcc3 (HFE-7000) 375-03-1 CH 3 OCF 2 CF 2 CF 3 575 HFE-347mcf2 171182-95- 9 CF 3 CF 2 OCH 2 CHF 2 374
HFE-347pcf2 406-78-0 CHF 2 CF 2 OCH 2 CF 3 580 HFE-356mec3 382-34-3 CH 3 OCF 2 CHFCF 3 101 HFE-356pcc3 160620-20- 2 CH 3 OCF 2 CF 2 CHF 2 110
HFE-356pcf2 50807-77-7 CHF 2 CH 2 OCF 2 CHF 2 265 HFE-356pcf3 35042-99-0 CHF 2 OCH 2 CF 2 CHF 2 502 HFE-365mcf3 378-16-5 CF 3 CF 2 CH 2 OCH 3 11 HFE-374pc2 512-51-6 CH 3 CH 2 OCF 2 CHF 2 557 HFE-449s1 (HFE-7100) 163702-07- 6 C 4 F 9 OCH 3 297

Chemical blend 163702-08- 7 (CF 3 ) 2 CFCF 2 OCH 3 HFE-569sf2 (HFE-7200) 163702-05- 4 C 4 F 9 OC 2 H 5 59 

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. Chemical blend 163702-06- 5 (CF 3 ) 2 CFCF 2 OC 2 H 5 Sevoflurane (HFE-347mmz1) 28523-86-6 CH 2 FOCH(CF 3 ) 2 345 HFE-356mm1 13171-18-1 (CF 3 ) 2 CHOCH 3 27 HFE-338mmz1 26103-08-2 CHF 2 OCH(CF 3 ) 2 380 (Octafluorotetramethy-lene) hydroxymethyl group NA X-(CF 2 ) 4 CH(OH)-X 73
HFE-347mmy1 22052-84-2 CH 3 OCF(CF 3 ) 2 343 Bis(trifluoromethyl)-methanol 920-66-1 (CF 3 ) 2 CHOH 195 2,2,3,3,3-pentafluoropropanol 422-05-9 CF 3 CF 2 CH 2 OH 42 PFPMIE (HT-70) NA CF 3 OCF(CF 3 ) CF 2 OCF 2 OCF 3 10,300

aThe GWP for this compound is different than the GWP in the version of Table A-1 to subpart A of part 98 published on October 30, 2009.
[78 FR 71948, Nov. 29, 2013] 

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