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ISO 6621-2:2020

Internal combustion engines — Piston rings — Part 2: Inspection measuring principles ISO 6621-2:2020

Publication date:   Mar 3, 2020

General information

90.93   Standard confirmed   Jan 8, 2026

ISO

ISO/TC 22/SC 34 Propulsion, powertrain and powertrain fluids

International Standard

43.060.10   Engine block and internal components

Buying

Published

Language in which you want to receive the document.

Scope

This document defines the measuring principles to be used for measuring piston rings; it applies to piston rings up to and including 200 mm diameter for reciprocating internal combustion engines.
This document can be used for piston rings for compressors working under analogous conditions.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 6621-2:2003

NOW

PUBLISHED
ISO 6621-2:2020
90.93 Standard confirmed
Jan 8, 2026




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