GB/T 1685-1982
Replaced
GB/T 7759.2-2014
Active
National standards
GB/T 7759.2-2014 Rubber,vulcanized or thermoplastic—Determination of compression set—Part 2:At low temperatures
GB/T 7759.2-2014 Rubber,vulcanized or thermoplastic—Determination of compression set—Part 2:At low temperatures
Basic Information
Standard Code:
GB/T 7759.2-2014
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Rubber products and their auxiliary materials
ICS Name:
Rubber
Publish Date:
2014-12-22
Implement Date:
2015-06-01
Pages:
9 pages
Scope
This part of GB/T 7759 specifies the test method for determining the compression permanent deformation performance of vulcanized rubber or thermoplastic rubber under low-temperature conditions.
This method is used to measure the ability of rubber with a hardness ranging from 10 IRHD to 95 IRHD to maintain its elasticity after continuous compression under specified temperature and compression ratio (usually 25%) conditions. When the rubber hardness is greater than 80 IRHD, a lower compression ratio should be selected: for 80 IRHD to 89 IRHD, the compression ratio is 15%; for 90 IRHD to 95 IRHD, the compression ratio is 10%.
Development Information
Referenced Standards
Adopt standards
ISO 815-2:2008
Related Standards
GB/T 3515-1983
Replaced
GB/T 3515-1983 Rubber, vulcanized—determination of carbon black content—pyrolytic method
GB/T 4497-1984
Replaced
GB/T 4497-1984 Vulcanized rubber—Determination of total sulphur content—Oxygen combustion flask method
GB/T 6030-1985
Replaced
GB/T 6030-1985 Vulcanized rubber—Determination of carbon black dispersion—Micrographic method
GB 5577-1985
Replaced
GB 5577-1985 Codification of types for synthetic rubbers
GB/T 1688-1986
Replaced