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Directive 2005/55/EC of the European Parliament and of the Council (repealed)Dangos y teitl llawn

Directive 2005/55/EC of the European Parliament and of the Council of 28 September 2005 on the approximation of the laws of the Member States relating to the measures to be taken against the emission of gaseous and particulate pollutants from compression-ignition engines for use in vehicles, and the emission of gaseous pollutants from positive-ignition engines fuelled with natural gas or liquefied petroleum gas for use in vehicles (Text with EEA relevance) (repealed)

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5.CALCULATION OF THE PARTICULATE EMISSION (DIESEL ENGINES ONLY)

5.1.Calculation of the mass flow

The particulate mass (g/test) shall be calculated as follows:

where:

Mf

=

particulate mass sampled over the cycle, mg

MTOTW

=

total mass of diluted exhaust gas over the cycle as determined in Section 4.1, kg

MSAM

=

mass of diluted exhaust gas taken from the dilution tunnel for collecting particulates, kg

and:

Mf

=

Mf,p + Mf,b if weighed separately, mg

Mf,p

=

particulate mass collected on the primary filter, mg

Mf,b

=

particulate mass collected on the back-up filter, mg

If a double dilution system is used, the mass of the secondary dilution air shall be subtracted from the total mass of the double diluted exhaust gas sampled through the particulate filters

where:

MTOT

=

mass of double diluted exhaust gas through particulate filter, kg

MSEC

=

mass of secondary dilution air, kg

If the particulate background level of the dilution air is determined in accordance with Section 3.4, the particulate mass may be background corrected. In this case, the particulate mass (g/test) shall be calculated as follows:

where:

Mf, MSAM, MTOTW

=

see above

MDIL

=

mass of primary dilution air sampled by background particulate sampler, kg

Md

=

mass of the collected background particulates of the primary dilution air, mg

DF

=

dilution factor as determined in Section 4.3.1.1

5.2.Calculation of the specific emission

The particulate emission (g/kWh) shall be calculated in the following way:

where:

Wact

=

actual cycle work as determined in Section 3.9.2, kWh.

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