This standard provides general specifications for piston rings (hereinafter referred to as rings) with a nominal diameter of 200 mm or less used in reciprocating internal combustion engines. This standard also specifies the ring codes, naming, and marking methods. This standard may also be applied to compressor rings that operate under similar conditions.
JIS B 8032-4:1998 history
2023JIS B 8032-4:2023 Internal combustion engines -- Small diameter piston rings -- Part 4: General specifications
2015JIS B 8032-4:2015 Internal combustion engines -- Small diameter piston rings -- Part 4: General specifications
2014JIS B 8032-10:2014 Internal combustion engines -- Small diameter piston rings -- Part 10: Half keystone rings made of cast iron
1998JIS B 8032-10:1998 Internal combustion engines -- Small diameter piston rings -- Part 10: Half keystone rings