GB/T 21255-2019: Classification system and test methods for nonmetallic gasket materials - Part 3: Standard test method for fluid resistance of gasket materials

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Scope

This Standard specifies the classification, technical requirements, test methods,
inspection rules, verification requirements, and the technical requirements for marking,
labeling and packaging of motor vehicle speed detector.
This Standard is applicable to devices for the speed measurement of motor vehicles
on the road.

Basic Data

Standard ID	GB/T 21255-2019 (GB/T21255-2019)
Description (Translated English)	Classification system and test methods for nonmetallic gasket materials - Part 3: Standard test method for fluid resistance of gasket materials
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	R82
Classification of International Standard	43.020
Word Count Estimation	42,454
Date of Issue	2019-12-31
Date of Implementation	2020-07-01
Older Standard (superseded by this standard)	GB/T 21255-2007
Quoted Standard	GB/T 2423.1; GB/T 2423.2; GB/T 2423.3; GB/T 2423.5; GB/T 2423.10; GB/T 2423.17; GB/T 4208; GB 7247.1-2012; GB/T 17626.2; GB/T 17626.3; GB/T 17626.4; GB/T 17626.5; GB/T 17626.11; GB/T 19056; GB/T 21437.2; GA/T 16.1; GA/T 16.10; GA/T 16.100; GA/T 16.101
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration
Summary	This standard specifies the classification, technical requirements, test methods, inspection rules, verification requirements, marking, labeling and packaging technical requirements of motor vehicle speedometers. This standard applies to devices for measuring the speed of motor vehicles on the road.