# Commission Regulation (EU) 2017/1151 of 1 June 2017 supplementing Regulation (EC) No 715/2007 of the European Parliament and of the Council on type-approval of motor vehicles with respect to emissions from light passenger and commercial vehicles (Euro 5 and Euro 6) and on access to vehicle repair and maintenance information, amending Directive 2007/46/EC of the European Parliament and of the Council, Commission Regulation (EC) No 692/2008 and Commission Regulation (EU) No 1230/2012 and repealing Commission Regulation (EC) No 692/2008 (Text with EEA relevance), Division 3.2.1.1


The concentration of a gaseous compound in the diluted exhaust gas shall be corrected by the amount of the gaseous compound in the dilution air using the following equation:
Ci=Ce− Cd×1−1DFwhere:
Ciis the concentration of gaseous compound i in the diluted exhaust gas corrected by the amount of gaseous compound i contained in the dilution air, ppm;
Ceis the measured concentration of gaseous compound i in the diluted exhaust gas, ppm;
Cdis the concentration of gaseous compound i in the dilution air, ppm;
DFis the dilution factor.

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Source: https://www.legislation.gov.uk/eur/2017/1151/annex/Sub/7/division/division/3./division/3.2./division/3.2.1./division/3.2.1.1. (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-1151/annex-Sub/7/division/division-3./division-3.2./division-3.2.1./division-3.2.1.1.
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.