GB/T 41487-2022 Translated English of Chinese Standard (GB/T41487-2022, GBT 41487-2022): Composite sealing gasket material
https://www.chinesestandard.net, 2022 M08 21 - 15 pages
This document specifies the classification and marking, requirements, test methods, inspection rules and marks, packaging, transportation, and storage of composite sealing gasket materials. This document applies to the non-metallic materials (excluding materials containing asbestos) that are compounded on both sides of the metal core material for making the sealing gasket. This document does not apply to multi-layer composite non-metallic materials of metal rubber sheets and metal core materials.
20 No foaming according to formula addition asbestos-free metal Allowable deviation Appearance changes Appearance quality arithmetic mean asbestos-free metal clad ASTM fuel oil beaker beater addition asbestos-free carried out according changes after immersion clad plane plate clad truss plate composite sealing gasket conditioning according corrosion No stripping Cut 3 samples distilled water document Dryer Electric drying oven falling off 20 flexible graphite metal foaming or falling gasket materials GB/T Graduated cylinder grams g graphite metal clad immersion in liquid impregnation in ASTM impregnation in distilled impregnation in IRM903 length and width liquid Thickening rate loss on heating measure the thickness metal clad plate Metal clad truss oil B 21 performance after impregnation Performance requirements provisions of GB/T Rebound rate requirements in Table rolled asbestos-free metal sample after impregnation sealing gasket materials significant figures according Take the arithmetic thickness change rate Type inspection Weigh the mass Weight gain rate Xianyang Zhejiang