GB/T 20671.1-2020
Classification system and test methods for nonmetallic gasket materials—Part 1：Standard classification system for nonmetallic gasket materials

Standard No.

GB/T 20671.1-2020

Language

Chinese

Release Date

2020

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Lastest

GB/T 20671.1-2020

Replace

GB/T 20671.1-2006

Scope

This part of GB/T20671 specifies the classification method, code definition, thickness requirements and measurement methods, sampling, and sample adjustment of non-metallic gasket materials. This part applies to materials made of asbestos, cork, cellulose and other inorganic or organic materials combined with various bonding agents or impregnating agents, not applicable to rubber product materials, gasket coating materials or multi-layer composite gaskets materials, but the surface layer single-layer materials of multi-layer composite gasket materials are also applicable to this classification system.

GB/T 20671.1-2020 history

• 2020 GB/T 20671.1-2020 Classification system and test methods for nonmetallic gasket materials—Part 1：Standard classification system for nonmetallic gasket materials
• 2006 GB/T 20671.11-2006 Classification system and test methods for nonmetallic gasket materials-Part11:Standard practice for determining resistance of synthetic polymeric materials to fungi

GB/T 20671.1-2020 -All Parts