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See Chinese contents: GB/T 20671.6-2020 GB/T 20671.6-2020: Classification system and test methods for nonmetallic gasket materials -- Part 6: Standard test method for adhesion of gasket materials to metal surfaces
This Part of GB/T 20671 specifies the principle, instruments and apparatuses, sample, test procedure, precision and test report for the test of adhesion of nonmetallic gasket materials to metal surfaces. This Part applies to the determination of adhesion of nonmetallic gaskets, such as polytetrafluoroethylene gaskets, fiber gaskets, graphite gaskets, to metal surfaces.
