(b)
NMC method Assuming a methane efficiency of 0,04 and an ethane efficiency of 0,98 (see Annex III, Appendix 5, Section 1.8.4)
← (a) · All articles · Calculation of the background corrected concentrations (Annex III, Appendix 2, Section 4.3.1.1): →
Source: EUR-Lex (Cellar) · retrieved 2026-11-01 · Text as adopted (Official Journal); later amendments are not incorporated in this text.