本文件规定了工程方法，即声音的测量方法 往复式内燃机的功率水平。 本文件适用于本领域内的所有往复式内燃机 ISO 3046-1和其他内燃机的应用 标准存在。 注:在本文件中，往复式内燃机被称为发动机，除非 另有解释。交叉引用:ISO 6926IEC 60942ISO 3046-1IEC 61260-1ISO 3046-3IEC 61672-1ISO 6798-2ISO 12001ISO 15619ISO 3746ISO/TS 19425ISO 3745ISO 4871ISO 13332ISO 9614（所有部分）ISO 3744:2010ISO 80000-8:2007购买本文件时提供的所有当前修订版均包括在内。

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.Cross References:ISO 6926IEC 60942ISO 3046-1IEC 61260-1ISO 3046-3IEC 61672-1ISO 6798-2ISO 12001ISO 15619ISO 3746ISO/TS 19425ISO 3745ISO 4871ISO 13332ISO 9614 (all parts)ISO 3744:2010ISO 80000-8:2007All current amendments available at time of purchase are included with the purchase of this document.