Identification of major hazard sources for fuming sulfuric acid
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Table 1 of GB 18218 version 18 has removed chemicals such as fuming sulfuric acid that are inconsistent with the criteria for classifying major hazard sources; does this mean that fuming sulfuric acid is no longer considered a substance subject to major hazard source labeling? Both fuming nitric acid and concentrated nitric acid (greater than 70%) are.
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Sulfuric acid is not listed in Table 1, and corrosive media are not included in Table 2 either. The regulations do not specify a critical storage quantity for sulfuric acid, making it impossible to classify it as a major hazard source.