GB/T 1685-1982
Replaced
GB/T 7759.1-2015
Active
National standards
GB/T 7759.1-2015 Rubber,vulcanized or thermoplastic—Determination of compression set—Part 1:At ambient or elevated temperatures
GB/T 7759.1-2015 Rubber,vulcanized or thermoplastic—Determination of compression set—Part 1:At ambient or elevated temperatures
Basic Information
Standard Code:
GB/T 7759.1-2015
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Rubber products and their auxiliary materials
ICS Name:
Rubber
Publish Date:
2015-05-15
Implement Date:
2015-10-01
Pages:
12 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 normal and high temperature conditions. This method is used to measure the ability of rubber with a hardness range of 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: 80 IRHD to 89 IRHD with a compression ratio of 15%, and 90 IRHD to 95 IRHD with a compression ratio of 10%.
Development Information
Replace the following standards
Referenced Standards
Adopt standards
ISO 815-1:2008
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