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Regulations last checked for updates: Apr 29, 2025
Title 40 - Protection of Environment last revised: Nov 29, 2025
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Title 40
Chapter I
Part 98
Subpart I
Appendix - Table I-10 to Subpart I of Part 98—Maximum Field Detection Limits Applicable to Fluorinated GHG Concentration Measurements for Stack Systems
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Appendix - Table I-10 to Subpart I of Part 98—Maximum Field Detection Limits Applicable to Fluorinated GHG Concentration Measurements for Stack Systems
Fluorinated GHG Analyte
Maximum field
detection
limit (ppbv)
CF
4
20
C
2
F
6
20
C
3
F
8
20
C
4
F
6
20
C
5
F
8
20
c-C
4
F
8
20
CH
2
F
2
40
CH
3
F
40
CHF
3
20
NF
3
20
SF
6
4
Other fully fluorinated GHGs
20
Other fluorinated GHGs
40
ppbv—Parts per billion by volume.
[78 FR 68228, Nov. 13, 2013]
authority:
42 U.S.C. 7401-7671q.
source:
74 FR 56374, Oct. 30, 2009, unless otherwise noted.
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