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See Chinese contents: GB/T 23937-2020 GB/T 23937-2020: Sodium hydrosulfide for industrial use
This Standard specifies the classification, technical requirements, test methods, inspection rules, marking, labeling, packaging, transportation and storage of sodium hydrosulfide for industrial use. This Standard applies to sodium hydrosulfide for industrial use, which is mainly used in industries such as mineral processing, pesticides, leather making, dyes, organic synthesis and water treatment.
