# Commission Delegated Regulation (EU) 2017/654 of 19 December 2016 supplementing Regulation (EU) 2016/1628 of the European Parliament and of the Council with regard to technical and general requirements relating to emission limits and type-approval for internal combustion engines for non-road mobile machinery, Division 9.3.1.3: Sampling methods

Extent: E+W+S+N.I.

For continuous and batch sampling, introduced in point 7.2, the following conditions apply:
(a) When extracting from a constant flow rate, the sample shall also be carried out at a constant flow rate;
(b) When extracting from a varying flow rate, the sample flow rate shall be varied in proportion to the varying flow rate;
(c) Proportional sampling shall be validated as described in point 8.2.1.

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Source: https://www.legislation.gov.uk/eur/2017/654/annex/VI/division/9/division/9.3/division/9.3.1/division/9.3.1.3 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-654/annex-VI/division-9/division-9.3/division-9.3.1/division-9.3.1.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.