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GB/T 13747.27-2020
锆及锆合金化学分析方法 第27部分:痕量杂质元素的测定 电感耦合等离子体质谱法
Methods for chemical analysis of zirconium and zirconium alloys—Part 27:Determination of trace impurities content—Inductively coupled plasma mass spectrometry
GB/T 7991.7-2019
Test method of viterous and porcelain enamels—Part 7:Determination of coefficient of mean lincar thermal expansion
GB/T 22380.2-2019
燃油加油站防爆安全技术 第2部分:加油机用安全拉断阀结构和性能的安全要求
Explosion protected safety technique of the petrol filling station—Part 2:Safety requirements for construction and performance of safe breaks for use on dispensers
GB/T 38317.22-2019
Space and fixing dimensions for smart electricity meter—Part 22:Structure of B-type
GB/T 38295-2019
Limits for lead, cadmium, hexavalent chromium, mercury in plastic materials
GB/T 37188.3-2019
Plastics—Acquisition and presentation of comparable multipoint data—Part 3:Environmental influences on properties
GB/T 7755.2-2019
Rubber, vulcanized or thermoplastic—Determination of permeability to gases—Part 2: Equal-pressure methods