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Commission Directive 2005/78/EC of 14 November 2005 implementing Directive 2005/55/EC of the European Parliament and of the Council on the approximation of the laws of the Member States relating to the measures to be taken against the emission of gaseous and particulate pollutants from compression-ignition engines for use in vehicles, and the emission of gaseous pollutants from positive ignition engines fuelled with natural gas or liquefied petroleum gas for use in vehicles and amending Annexes I, II, III, IV and VI thereto (Text with EEA relevance) · European Union

In Appendix 2, section 3 and the introductory phrase of section 4 are replaced by the following: 3. The values of the pollutants given in section 6.2.1 of Annex I, after having applied the relevant DF, are considered to be log normally distributed and should be transformed by taking their natural logarithms. Let m0 and m denote the minimum and maximum sample size respectively (m0 = 3 and m = 32) and let n denote the current sample number. 4. If the natural logarithms of the measured values (after having applied the relevant DF) in the series are x1, x2, … xi and L is the natural logarithm of the limit value for the pollutant, then, define:’

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Source: EUR-Lex (Cellar) · retrieved 2026-11-10 · Text as adopted (Official Journal); later amendments are not incorporated in this text.