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ISO 6621-5:2013

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

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withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Internal combustion engines Piston rings Part 5: Quality requirements
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Withdrawn date

01-28-2020

Language(s)

English

Published date

09-13-2013

ISO 6621-5:2013 specifies those quality aspects that are capable of definition but not normally found on a drawing specification.

It is applicable to the following: single-piece piston rings of grey cast iron or steel; multi-piece piston rings (oil control rings) consisting of cast iron parts and spring components; single-piece and multi-piece oil control rings of steel, i.e. oil control rings in the form of strip steel components or steel segments (rails) with spring expander components.

In addition to specifying certain of the limits of acceptance relating to inspection measuring principles (covered by ISO 6621-2), ISO 6621-5:2013 also covers those features for which no recognized quantitative measurement procedures exist and which are only checked visually with normal eyesight (spectacles if worn normally) and without magnification. Such features (superficial defects) are additional to the standard tolerances of ring width, radial wall thickness, and closed gap.

ISO 6621-5:2013 does not establish acceptable quality levels (AQL), it being left to manufacturer and client to decide the appropriate levels jointly. In this case, the recommendations of ISO 2859 are followed.

ISO 6621-5:2013 specifies the quality requirements of piston rings for reciprocating internal combustion engines for road vehicles and other applications. It is applicable to all such rings of a nominal diameter from 30 mm up to and including 200 mm.

DevelopmentNote
DRAFT ISO/DIS 6621-5 is also available for this standard. (03/2018)
DocumentType
Standard
Pages
14
PublisherName
International Organization for Standardization
Status
Withdrawn
SupersededBy
Supersedes

Standards Relationship
BS ISO 6621-5:2013 Identical
NEN ISO 6621-5 : 2005 Identical
NF ISO 6621-5 : 1989 Identical
DIN ISO 6621-5:1990-06 Identical
UNI ISO 6621-5 : 1992 Identical

12/30232970 DC : 0 BS ISO 6623 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - SCRAPER RINGS MADE OF CAST IRON
BS ISO 6624-2:2016 Internal combustion engines. Piston rings Half keystone rings made of cast iron
ISO 6621-1:2018 Internal combustion engines — Piston rings — Part 1: Vocabulary
ISO 6624-2:2016 Internal combustion engines — Piston rings — Part 2: Half keystone rings made of cast iron
SAE J 2275 : 2010 (R2018) INTERNAL COMBUSTION ENGINES - PISTON RING-GROOVES
ISO 6627:2011 Internal combustion engines Piston rings Expander/segment oil-control rings
12/30242897 DC : 0 BS ISO 6624-2 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 2: HALF KEYSTONE RINGS MADE OF CAST IRON
BS ISO 6624-4:2016 Internal combustion engines. Piston rings Half keystone rings made of steel
16/30340311 DC : DRAFT JUNE 2016 BS ISO 6626-2 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 2: COIL-SPRING-LOADED OIL CONTROL RINGS OF NARROW WIDTH MADE OF CAST IRON
15/30320008 DC : 0 BS ISO 6626-3 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 3: COIL-SPRING-LOADED OIL CONTROL RINGS MADE OF STEEL
ISO 6622-2:2013 Internal combustion engines — Piston rings — Part 2: Rectangular rings made of steel
BS ISO 6622-2:2013 Internal combustion engines. Piston rings Rectangular rings made of steel
BS ISO 6624-1:2017 Internal combustion engines. Piston rings Keystone rings made of cast iron
BS ISO 6622-1:2003 Internal combustion engines. Piston rings Rectangular rings made of cast iron
16/30340802 DC : 0 BS ISO 6626-1 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 1: COIL-SPRING-LOADED OIL CONTROL RINGS MADE OF CAST IRON
15/30320002 DC : 0 BS ISO 6624-1 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 1: KEYSTONE RINGS MADE OF CAST IRON
ISO 6624-3:2017 Internal combustion engines — Piston rings — Part 3: Keystone rings made of steel
11/30211189 DC : 0 BS ISO 6622-2 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 2: RECTANGULAR 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/TR 6624-2:1988 Internal combustion engines — Piston rings — Part 2: Half keystone rings
12/30242900 DC : 0 BS ISO 6624-4 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 4: HALF KEYSTONE RINGS MADE OF STEEL
BS ISO 6626-2:2013 Internal combustion engines. Piston rings Coil-spring-loaded oil control rings of narrow width made of cast iron
BS ISO 6624-3:2017 Internal combustion engines. Piston rings Keystone rings made of steel
15/30320005 DC : 0 BS ISO 6624-3 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 3: KEYSTONE RINGS MADE OF STEEL
BS ISO 6627:2011 Internal combustion engines. Piston rings. Expander/segment oil-control rings
BS ISO 6623:2013 Internal combustion engines. Piston rings. Scraper rings made of cast iron
ISO 6623:2013 Internal combustion engines Piston rings Scraper rings made of cast iron
ISO 6626:1989 Internal combustion engines Piston rings Coil-spring-loaded oil control rings
BS ISO 6626-3:2008 Internal combustion engines. Piston rings Coil-spring-loaded oil control rings made of steel
ISO 6624-4:2016 Internal combustion engines — Piston rings — Part 4: Half keystone rings made of steel
12/30211192 DC : 0 BS ISO 6626-2 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 2: COIL-SPRING-LOADED OIL CONTROL RINGS OF NARROW WIDTH MADE OF CAST IRON
07/30163269 DC : 0 BS ISO 6626-3 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - PART 3: COIL-SPRING-LOADED AND NITRIDED OIL CONTROL RINGS MADE OF STEEL
08/30179075 DC : DRAFT SEP 2008 BS ISO 6627 - INTERNAL COMBUSTION ENGINES - PISTON RINGS - EXPANDER/SEGMENT OIL-CONTROL RINGS
ISO/TR 6622-2:1988 Internal combustion engines Piston rings Part 2: Rectangular rings with narrow ring width
ISO 6626-3:2008 Internal combustion engines Piston rings Part 3: Coil-spring-loaded oil control rings made of steel
ISO 6622-1:2003 Internal combustion engines Piston rings Part 1: Rectangular rings made of cast iron
ISO 6624-1:2017 Internal combustion engines — Piston rings — Part 1: Keystone rings made of cast iron

ISO 6621-2:2003 Internal combustion engines Piston rings Part 2: Inspection measuring principles
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 6625:1986 Internal combustion engines Piston rings Oil control rings
ISO 6623:2013 Internal combustion engines Piston rings Scraper rings made of cast iron
ISO 6626:1989 Internal combustion engines Piston rings Coil-spring-loaded oil control rings
ISO 6621-3:2000 Internal combustion engines Piston rings Part 3: Material specifications
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 6621-4:2015 Internal combustion engines Piston rings Part 4: General specifications
ISO 6626-3:2008 Internal combustion engines Piston rings Part 3: Coil-spring-loaded oil control rings made of steel

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