GB/T 12621-2008 Active National standards

GB/T 12621-2008 Standard test method for stress relaxation of gaskets for pipe flanges

Publish Date: 2008-05-07 Implement Date: 2008-11-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 12621-2008

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Piping accessories

ICS Name: Flanges, pipe joints, and connectors

Publish Date: 2008-05-07

Implement Date: 2008-11-01

Pages: 12 pages

Scope

This standard specifies two test methods, A and B, for stress relaxation of gaskets used in pipe flanges. Test method A is suitable for asbestos rubber gaskets, non-asbestos rubber gaskets, polytetrafluoroethylene gaskets, expanded or modified polytetrafluoroethylene gaskets, flexible graphite composite gaskets, etc. Test method B is suitable for wrapped gaskets, metal-coated gaskets, polytetrafluoroethylene-coated gaskets, toothed metal gaskets with non-metallic coatings, wave-shaped metal gaskets, and wave-toothed metal gaskets, etc. This method is also suitable for gaskets applicable to test method A, and metal flat gaskets can also be tested according to this method.