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med förgasare(6):.
the gas samples are collected in sample bags of adequate capacity. these bags must be made of such materials as will not change the pollutant gas by more than ± 2 % after 20 minutes of storage. 4.3. analytical equipment 4.3.1. requirements 4.3.1.1. pollutant gases must be analyzed with the following instruments: carbon monoxide (co) and carbon dioxide (co2) analysis: the carbon monoxide and carbon dioxide analyzers must be of the non-dispersive infra-red (ndir) absorption type. hydrocarbons (hc) analysis - spark-ignition engines:
med förgasare(5)… nummer.
this test shall be carried out on all vehicles referred to in article 1 whose maximum weight does not exceed 3 7 5 metric tons. 3.2.1.1.2. the vehicle shall be placed on a dynamometer bench equipped with a brake and a flywheel. a test lasting a total of thirteen minutes and comprising four cycles shall be carried out without interruption. each cycle shall comprise 15 phases (idling, acceleration, steady speed, deceleration, etc.). during the test the exhaust gases shall be collected in one or more bags. the gases shall be analysed and their volume measured at the end of the filling period. 3.2.1.1.3. the test shall be carried out by the procedure described in annex iii. the methods used to collect and analyse the gases shall be those laid down.
för fyrtaktsfordon: topplock, kamaxel, enheten cylinder/kolv, förgasare, insugningsrör, avgassystem
for four-stroke vehicles: cylinder head, camshaft, cylinder/piston combination, carburettor, intake pipe, exhaust system,