China National Standards

China safety“i” GB Standards List

  •  China "safety“i”" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 3836.4-2021 Explosive atmospheres—Part 4：Equipment protection by intrinsic safety“i”
    爆炸性环境 第4部分：由本质安全型“i”保护的设备    		 China National Standards
    safety“i”
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