On April 22, 1915, in an attempt to turn the tide in World War I, Germany unleashed 180 tons of chlorine gas on the positions of British and French troops, poisoning 5,000 allied soldiers and killing them instantly. This was the first large-scale gas war in world military history. The British and French allied forces, …
Gas mask is a kind of personal special labor protection equipment, is also a soldier protective equipment, worn on the head, to protect people’s respiratory organs, eyes and face, to prevent poison gas, dust, bacteria, toxic and harmful gas or steam and other toxic substances injury of personal protection equipment. Gas mask is widely used …
Due to the danger and complexity of confined space, accidents involving casualties of operators often occur. Based on the characteristics of frequent accidents and serious consequences in confined space, I will summarize the hazards of confined space operations for your reference and hope to attract your attention. (1) Harmful gas hazard. Common harmful gases accumulated …
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