Report - DCE - Nationalt Center for Miljø og Energi

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For non-road working machinery and equipment, and recreational craft and
railway locomotives/motor cars, the emission directives list specific emission
limit values (g pr kWh) for CO, VOC, NOx (or VOC + NOx) and TSP,
depending on engine size (kW for diesel, ccm for gasoline) and date of implementation
(referring to engine market date).
For diesel, the directives 97/68 and 2004/26 relate to non-road machinery
other than agricultural and forestry tractors and the directives have different
implementation dates for machinery operating under transient and constant
loads. The latter directive also comprises emission limits for railway machinery.
For tractors the relevant directives are 2000/25 and 2005/13. For
gasoline, the directive 2002/88 distinguishes between hand-held (SH) and
not hand-held (NS) types of machinery.
For engine type approval, the emissions (and fuel consumption) are measured
using various test cycles (ISO 8178). Each test cycle consists of a number
of measurement points for specific engine loads during constant operation.
The specific test cycle used depends on the machinery type in question
and the test cycles are described in more details in the directives.
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