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Which safety check should be done prior the welding in the cargo tank?

15 Sep '19, 10:16

Sept. 15, 2019, 10:16 a.m.
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Measure the atmosphere inside the compartment. It must be 20.9% of oxygen content by volume and less than 1% LFL of hydrocarbon vapour concentration, 0% of Benzene content, 0% of H2S content.

Sludge and residue should be removed at least 10 m from working site.

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15 Sep '19, 10:22

Sept. 15, 2019, 10:22 a.m.
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