Reference Source

ISO 6621-4:1988

For ISO 6621-4:1988, item title is Internal combustion engines — Piston rings — Part 4: General specifications; status code is 9599; successor is ISO 6621-4:2003; withdrawn / published date is 1988-12-29, recorded from its source on 2026-08-05.

Identifier
ISO 6621-4:1988 verified
Item title
Internal combustion engines — Piston rings — Part 4: General specifications verified
Status code
9599 verified
Successor
ISO 6621-4:2003
Withdrawn / published date
1988-12-29 verified
Sourceisopublicstorageprod.blob.core.windows.net
Verified
Review by
DatasetWithdrawn and superseded ISO standards

What the source says

13036,IS,,ISO 6621-4:1988,Internal combustion engines — Piston rings — Part 4: General specifications,Moteurs à combustion interne — Segments de piston — Partie 4: Spécifications générales,1988-12-29,1,['43.060.10'],ISO/TC 22,9599,,[38306],"['en','fr']",13,"<p>This part lays down the general characteristics of piston rings, individual dimensional criteria of which are specified as appropriate in the ISO publications cited in clause 0. Provides a system for coding, designation and marking of the piston rings. Applies to all rings up to and including 200 mm diameter covered by the above classification for both reciprocating internal combustion piston engines and compressors.</p>"

isopublicstorageprod.blob.core.windows.net, retrieved 2026-08-05

Source

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