BS ISO 6621-4:2015
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Internal combustion engines. Piston rings General specifications
Hardcopy , PDF
03-05-2024
English
31-03-2015
Important note : Users cannot be edited or removed once added to your Multi user PDF.| Committee |
MCE/22
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| DevelopmentNote |
Supersedes BS 5341-6.4(1992) and 98/713927 DC. (12/2003) Supersedes 12/30242220 DC. (04/2015)
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| DocumentType |
Standard
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| Pages |
40
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| PublisherName |
British Standards Institution
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| Status |
Superseded
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| SupersededBy | |
| Supersedes |
This part of ISO6621 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 30mm up to and including 200mm.
| Standards | Relationship |
| ISO 6621-4:2015 | Identical |
| ISO 6622-2:2013 | Internal combustion engines — Piston rings — Part 2: Rectangular rings made of steel |
| ISO 6621-2:2003 | Internal combustion engines Piston rings Part 2: Inspection measuring principles |
| ISO 6624-2:2016 | Internal combustion engines — Piston rings — Part 2: Half keystone rings made of cast iron |
| ISO 6624-3:2017 | Internal combustion engines — Piston rings — Part 3: Keystone rings made of steel |
| ISO 6626-2:2013 | Internal combustion engines — Piston rings — Part 2: Coil-spring-loaded oil control rings of narrow width made of cast iron |
| ISO 6624-1:2017 | Internal combustion engines — Piston rings — Part 1: Keystone rings made of cast iron |
| ISO 6624-4:2016 | Internal combustion engines — Piston rings — Part 4: Half keystone rings made of steel |
| ISO 6507-3:2005 | Metallic materials Vickers hardness test Part 3: Calibration of reference blocks |
| ISO 6625:1986 | Internal combustion engines Piston rings Oil control rings |
| ISO 6622-1:2003 | Internal combustion engines Piston rings Part 1: Rectangular rings made of cast iron |
| ISO 6623:2013 | Internal combustion engines — Piston rings — Scraper rings made of cast iron |
| ISO 6627:2011 | Internal combustion engines Piston rings Expander/segment oil-control rings |
| ISO 6621-1:2007 | Internal combustion engines Piston rings Part 1: Vocabulary |
| ISO 6626-3:2008 | Internal combustion engines Piston rings Part 3: Coil-spring-loaded oil control rings made of steel |
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