China National Standards

China concentration—Gravimetric GB Standards List

  •  China "concentration—Gravimetric" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 39193-2020 Ambient air—Determination of particulate matter mass concentration—Gravimetric method
    环境空气 颗粒物质量浓度测定 重量法    		 China National Standards
    concentration—Gravimetric
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