China National Standards

China 1:Gravimetric GB Standards List

  •  China "1:Gravimetric" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 5274.1-2018 Gas analysis—Preparation of calibration gas mixtures—Part 1:Gravimetric method for class I mixtures
    气体分析 校准用混合气体的制备 第1部分：称量法制备一级混合气体    		 China National Standards
    1:Gravimetric
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