BS ISO 15619:2013 PDF

1   Scope This International Standard specifies the measurement method and requirements for exhaust silencers which is installed on reciprocating internal combustion engines, including laboratory measurement and site measurement. The following parameters are measured for laboratory measurement (engineering method):

— the sound power level (A-weighted or in frequency bands) of exhaust noise using sound pressure , accuracy grade 2;

— the insertion loss (A-weighted or in frequency bands) of exhaust silencers ;

— the power loss ratio of reciprocating internal combustion engines.

The following parameters are measured for site measurement and laboratory measurement (survey method):

— the sound power level (A-weighted) of exhaust noise using sound pressure , accuracy grade 3;

— the insertion loss (A-weighted) of exhaust silencers .

NOTE 1 The aim...