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【One Question per Day, 20 Questions】June 20, 2018

2018-06-20View Original

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When the hazard class of a gas explosion-prone area is Zone 0 or Zone 1, and the minimum ignition energy of the combustible materials is below ( ), workers should wear work clothing that poses no risk of static ignition. Cotton work clothes can be worn when the relative humidity of the environment remains above 50%.    A. 2.5mJ    B. 0.25mJ    C. 0.025mJ    D. 0.0025mJ. For management reasons, to view content from a few days ago, please use the summary post below. https://bbs.hcbbs.com/home.php?m ... w=me&from=space

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