ISO 29042-4:2009 specifies a method based on a tracer technique for measuring the capture efficiency of an exhaust system installed on a machine. It is applicable to all types of test environment — test bench, room or field (see ISO 29042-1) — but is only applicable if the tracer shows aerodynamic behaviour comparable to that of the real pollutant.
Status: PublishedPublication date: 2009-02
Edition: 1Number of pages: 10
Technical Committee: ISO/TC 199 Safety of machinery
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