没有与此SAE标准等效的ISO标准。本SAE标准确定并定义了活塞环凹槽特性的最常用术语，规定了凹槽宽度的尺寸，并演示了活塞凹槽根部直径的计算方法。本文件的要求适用于在类似条件下工作的往复式内燃机和压缩机的活塞和活塞环，压缩环直径不超过200mm，宽度不超过4.5mm，油环宽度不超过8.0mm。本文件中的规范假设部件是在20°C（68°F）的环境温度下测量的。本文件中规定的公差代表实际功能限制，并不意味着工艺能力。

There is no ISO standard equivalent to this SAE Standard.This SAE Standard identifies and defines the most commonly used terms for piston ring-groove characteristics, specifies dimensioning for groove widths, and demonstrates the methodology for calculation of piston groove root diameter.The requirements of this document apply to pistons and rings of reciprocating internal combustion engines and compressors working under analogous conditions, up to and including 200 mm diameter and 4.5 mm width for compression rings and 8.0 mm width for oil rings.The specifications in this document assume that components are measured at an ambient temperature of 20 °C (68 °F).Tolerances specified in this document represent practical functional limits and do not imply process capabilities.