Reference number
ISO 6621-4:2015
© ISO 2025
ISO 6621-4:2015
Internal combustion engines — Piston rings — Part 4: General specifications
Edition 3
2015-03
Withdrawn
Withdrawn (Edition 3, 2015)

Abstract

ISO 6621-4:2015 specifies the general characteristics of piston rings for reciprocating internal combustion engines for road vehicles and other applications (the individual dimensional criteria for these rings are given in the relevant International Standards). It also provides a system for ring coding, designation, and marking. It is applicable to all such rings of a nominal diameter from 30 mm up to and including 200 mm.

General information

  • Status
     : Withdrawn
    Publication date
     : 2015-03
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 3
    Number of pages
     : 28
  • Technical Committee :
    ISO/TC 22/SC 34
    ICS :
    43.060.10 
  • RSS updates

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

9
Industry, Innovation and Infrastructure

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