DUNG DỊCH CHUẨN VÀ ĐỆM

Iodine, Standard solution for volumetric analysis, 0.05M, 0.1N

Sodium hydroxide, free from carbonate, Standard solution for volumetric analysis, 0.1M (0.1N)

Buffer solution pH 4 (phthalate), for pH measurement

Sodium hydroxide, free from carbonate, Standard solution for volumetric analysis, 1M (1N)

Hydrochloric acid, Standard solution for volumetric analysis, 1M (1N), stabilized, meets spec. of BP