GB/T 21406-2008 in English

《GB/T 21406-2008内燃机 发动机的重量（质量）标定》由TC177（全国内燃机标准化技术委员会）归口，主管部门为中国机械工业联合会。
本标准规定了内燃机的重量（质量）标定方法。 本标准适用于：
ａ）往复内燃式（ＲＩＣ）发动机（火花点燃式或压燃式发动机）但不包括自由活塞式发动机；
ｂ）旋转活塞式发动机；
这些发动机可以是自然吸气式发动机或采用机械增压器或涡轮增压器的增压发动机。
本标准适用于下列用途的发动机：
ｃ）陆用、轨道牵引和船用；
ｄ）车用；
ｅ）驱动（或作为动力）的非道路移动机械用；
ｆ）摩托车用；
ｇ）农用拖拉机和农业机械驱动用；
ｈ）ＩＳＯ６１６５标准中定义的土方机械用；
ｉ）总长不超过２４ｍ 的游艇等小型船舶用。
本标准也适用于筑路机械、工业卡车以及目前尚无合适标准使用的其他用途的发动机。

Scope

This standard specifies the weight (mass) calibration method for internal combustion engines. Noun weight as used in this standard is directly equivalent to noun mass. This standard applies to: a) reciprocating internal combustion (RIC) engines (spark-ignition or compression-ignition engines) but excluding free-piston engines; b) rotary-piston engines; these engines may be naturally aspirated or A supercharged engine with a supercharger or turbocharger. This standard applies to engines for the following purposes: c) for land use, track traction and marine use; d) for vehicles; e) for driving (or as power) non-road mobile machinery; f) for motorcycles; g) for agricultural tractors and For driving agricultural machinery; h) For earth-moving machinery as defined in the ISO 6165 standard; i) For small ships such as yachts with an overall length not exceeding 24m. This standard also applies to engines for road construction machinery, industrial trucks, and other uses for which there is currently no suitable standard.