# 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 2.2.4.1: PDP-CVS system

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

The mass of the diluted exhaust gas [kg/test] over the cycle shall be calculated by means of equation (7-35), if the temperature of the diluted exhaust gas m ed is kept within ± 6 K over the cycle by using a heat exchanger:
m ed = 1,293 × V 0 × n P × P p 101,325 × 273,15 T
(7-35)
where:
V 0 volume of gas pumped per revolution under test conditions [m3/rev]
n P total revolutions of pump per test [rev/test]
p p absolute pressure at pump inlet [kPa]
T – average temperature of the diluted exhaust gas at pump inlet [K]
1,293 kg/m3 air density at 273,15 K and 101,325 kPa
If a system with flow compensation is used (i.e. without heat exchanger), the mass of the diluted exhaust gas m ed, i [kg] during the time interval shall be calculated by means of equation (7-36):
m ed, i = 1,293 × V 0 × n P, i × p p 101,325 × 273,15 T
(7-36)
where:
V 0 volume of gas pumped per revolution under test conditions [m3/rev]
p p absolute pressure at pump inlet [kPa]
n P, i total revolutions of pump per time interval i [rev/Δt]
T – average temperature of the diluted exhaust gas at pump inlet [K]
1,293 kg/m3 air density at 273,15 K and 101,325 kPa

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Source: https://www.legislation.gov.uk/eur/2017/654/annex/VII/division/2/division/2.2/division/2.2.4/division/2.2.4.1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-654/annex-VII/division-2/division-2.2/division-2.2.4/division-2.2.4.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.