# 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 1.2: Subscripts

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

In section 2 the meaning of subscript is determined by the associated quantity; for example, the subscript ‘d’ can indicate a dry basis as in ‘c d = concentration on dry basis’, dilution air as in ‘p d = saturation vapour pressure of the dilution air’ or ‘k w,d = dry to wet correction factor for the dilution air’, dilution ratio as in ‘r d’.
Section 2
Section 3
Quantity
act
act
Actual quantity
i
Instantaneous measurement (e.g.: 1 Hz)
i
An individual of a series

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Source: https://www.legislation.gov.uk/eur/2017/654/annex/VII/division/1/division/1.2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-654/annex-VII/division-1/division-1.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.