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See Chinese contents: GB/T 2449.1-2021 GB/T 2449.1-2021: Sulphur for industrial use -- Part 1: Solid product
This document specifies the technical requirements, sampling, test methods, inspection rules, marking, packaging, transportation, storage, safety of solid sulfur for industrial use. This document applies to solid industrial sulfur, which is produced from petroleum refinery gas, natural gas, coal chemical acid gas, coke oven gas, flue gas, sulfur waste gas recovery, pyrite.
