ISO 6622-1:2021

Internal combustion engines — Piston rings — Part 1: Rectangular rings made of cast iron

This document specifies the essential dimensional features of rectangular rings made of cast iron, Types R, B, BA and M, having diameters up to and including 200?mm, used in reciprocating internal combustion piston engines. It is also applicable to piston rings of compressors working under similar conditions.