GB/T 3452.2-1987
Replaced
GB/T 12621-1990
Replaced
National standards
GB/T 12621-1990 Test method for stress relaxation of gaskets for pipe flanges
GB/T 12621-1990 Test method for stress relaxation of gaskets for pipe flanges
Basic Information
Standard Code:
GB/T 12621-1990
Standard Type:
National standards
Standard Status:
Replaced
is_force_gb:
no
CCS Name:
Piping accessories
ICS Name:
Seals for pipes and hose assemblies
Publish Date:
1990-12-14
Implement Date:
1991-10-01
Publisher:
The National Technical Supervision Bureau
Technical Committee:
Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry
Pages:
11 pages
Development Information
Drafting Units:
The Mechanical Standards Research Institute of the Ministry of Machinery and Electronics Industry, Nanjing Chemical Industry College, Beijing Brake Sealing Materials Factory, and Beijing Petrochemical Engineering Company of Sinopec Corporation
Drafting Persons:
Li Xinhua, Gu Bobin, Li Daochun, Zhu Hongsheng, and Zhang Wanying
Superseded by the following standards
Related Standards
GB/T 12385-1990
Replaced
GB/T 12385-1990 Test method for sealing characteristics of gaskets for pipe flanges
GB/T 12622-1990
Replaced
GB/T 12622-1990 Test method for compressibility and recovery of gaskets for pipe flanges
GB/T 13403-1992
Replaced
GB/T 13403-1992 Gaskets for large-diameter cabon steel pipe flanges
GB/T 13404-1992
Replaced
GB/T 13404-1992 Polytetrafluoroethylene envelope gaskets for pipe flanges
GB 3452.1-1992
Replaced