Which safety check should be done prior the welding in the cargo tank?
15 Sep '19, 14:16
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.
15 Sep '19, 14:22