1 Scope
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.