DL 422.2-1991
DL 422.3-1991
DL 422.4-1991
DB51/T 1220-2011
DB51/T 1222-2011
DB51/T 1221-2011
DIN 52803
Surface active agents - Analysis of technical alkane sulphonates - Determination of alkane monosulphonates content
ISO 5936:1980
Crude sodium borates for industrial use — Determination of carbonate content — Gravimetric method
ISO 4278:1977
Sodium fluoride for industrial use — Determination of carbonate content — Gravimetric method
KS M ISO 909-2002(2007)
Hydrochloric acid for industial use-Determination of iron content -2, 2′-bipyridyl spectrophotometric method
ISO 3237:1975
Sodium sulphate for industrial use — Determination of sulphates content — Calculation method and barium sulphate gravimetric method
DIN 52803-DRAFT
Draft Document - Surface active agents - Analysis of technical alkane sulphonates - Determination of alkane monosulphonates content
ISO 996:1976
Potassium hydroxide for industrial use — Determination of silica content — Gravimetric method by precipitation of quinoline molybdosilicate
ISO 985:1976
Sodium hydroxide for industrial use — Determination of silica content — Gravimetric method by precipitation of quinoline molybdosilicate
ISO 3206:1975
Surface active agents — Analysis of technical alkane sulphonates — Determination of alkane monosulphonates content
GB/T 320-2006
Synthetic hydrochloric acid for industrial use
GB/T 32125-2021
Treatment and disposal specification for waste hydrochloric acid solution from industrial manufacture
HG/T 3736-2013
Hydroxylammonium chloride for industrial use
ISO 2053:1976
Potassium chloride for industrial use — Determination of moisture content — Gravimetric method
ISO 5142:1977
Sodium sulphate for industrial use — Determination of sodium sulphate content — Gravimetric method