ISO/TC 70/WG 13 - Air-borne noise

This document specifies a measurement method and requirements for exhaust silencers which are installed on reciprocating internal combustion engines, including laboratory measurement and site measurement. This document applies to all exhaust silencers installed on reciprocating internal combustion engines falling within the field of application of ISO 3046 1. This document can also apply to other exhaust silencers for which no suitable International Standard exists. NOTE Throughout the text, exhaust silencer is referred to as silencer and reciprocating internal combustion engine as engine.

This document specifies the measurement method of sound power level for reciprocating internal combustion engines, which is a survey method for use in situ. This document applies to all reciprocating internal combustion engines falling within the field of application of ISO 3046-1 and other internal combustion engines where no suitable International Standard exists. NOTE In this document, reciprocating internal combustion engines are referred to as engines unless otherwise explained.

This document specifies the survey method, which is the measurement method of the sound power level for reciprocating internal combustion engines. This document applies to all reciprocating internal combustion engines falling within the field of application of ISO 3046‑1 and other internal combustion engines where no suitable International Standard exists. NOTE In this document, reciprocating internal combustion engines are referred to as engines unless otherwise explained.

This document specifies the engineering method, which is the measurement method of the sound power level for reciprocating internal combustion engines. This document applies to all reciprocating internal combustion engines falling within the field of application of ISO 3046-1 and other internal combustion engines where no suitable International Standard exists. NOTE In this document, reciprocating internal combustion engines are referred to as engines unless otherwise explained.

ISO/TS 19425:2015 specifies the measurement method and requirements for combustion air inlet noise of air cleaners which are installed on reciprocating internal combustion engines, including laboratory measurement (engineering method and survey method) and site measurement (survey method). ISO/TS 19425:2015 applies to all air cleaners installed on reciprocating internal combustion engines (reciprocating internal combustion engine is referred to as engine except particular explanation in the following text) falling within the field of application of ISO 3046‑1 and/or other air induction installation.