PART 2

Regulation (EC) No 842/2006 of the European Parliament and of the Council of 17 May 2006 on certain fluorinated greenhouse gases (Text with EEA relevance) · European Union

The total GWP for a preparation is a weighted average, derived from the sum of the weight fractions of the individual substances multiplied by their GWPs. Σ (Substance X % x GWP) + (Substance Y % x GWP) + … (Substance N % x GWP) where % is the contribution by weight with a weight tolerance of +/- 1 %. For example: applying the formula to a theoretical blend of gases consisting of 23 % HFC-32; 25 % HFC-125 and 52 % HFC-134a; Σ (23 % x 550) + (25 % x 3400) + (52 % x 1300) → Total GWP = 1652,5

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Source: EUR-Lex (Cellar) · retrieved 2026-11-04 · Text as adopted (Official Journal); later amendments are not incorporated in this text.