Abstract
ISO 6623:2004 specifies the essential dimensional features of scraper rings made of cast iron, types N, NM, E and EM, having diameters of from 30 mm up to and including 200 mm, used in reciprocating internal combustion engines. It is also applicable to piston rings of compressors working under similar conditions.
Life cycle
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Previously
WithdrawnISO 6623:1986
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Now
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Revised by
PublishedISO 6623:2013