Division 2.1.2 Transient (NRTC and LSI-NRTC) test cycles and RMC tests

United Kingdom

The total mass per test of a gaseous emission m _gas [g/test] shall be calculated by multiplication of the time aligned instantaneous concentrations and exhaust gas flows and integration over the test cycle by means of equation (7-2):

m_{gas} = \frac{1}{f} \times k_{h} \times k \times u_{gas} \times \sum_{i = 1}^{N} (q_{m ew, i} \times c_{gas, i})

(7-2)

where:

data sampling rate [Hz]

k _h

NO_x correction factor [-], only to be applied for the NO_x emission calculation

1 for c_gasr,w,i in [ppm] and k = 10 000 for c_gasr,w, _i in [% vol]

u _gas

component specific factor [-] (see point 2.1.5)

number of measurements [-]

q_m _ew, _i

instantaneous exhaust gas mass flow rate on a wet basis [kg/s]

c _gas, _i

instantaneous emission concentration in the raw exhaust gas, on a wet basis [ppm] or [% vol]

Notes on Division 2.1

Textual amendments

F1: Substituted by Commission Delegated Regulation (EU) 2018/989 of 18 May 2018 amending and correcting Delegated Regulation (EU) 2017/654 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 (Text with EEA relevance).