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See Chinese contents: GB/T 23456-2018 GB/T 23456-2018: Phosphogypsum
This Standard specifies the classification and labeling, requirements, test methods, inspection rules, as well as packaging, marking, transportation and storage of phosphogypsum. This Standard is applicable to phosphogypsum, which is obtained when phosphoric acid is produced through the wet method, using phosphate ore as the raw material, and with calcium sulfate dihydrate (CaSO4 ? 2H2O) as the main component.
