GB/T 640-1997
ActiveChemical reagent--Sodium hydrogen carbonate
化学试剂 碳酸氢钠
Application Summary AI generated
GB/T 640-1997 specifies the technical requirements, test methods, inspection rules, and packaging for sodium hydrogen carbonate (sodium bicarbonate) used as a chemical reagent. It is applied in laboratory settings and industrial processes where high-purity sodium bicarbonate is required for analytical testing, synthesis, or as a buffering agent. The standard ensures consistency and quality control for reagent-grade sodium bicarbonate in chemical manufacturing and research.
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