Sodium chloride for industrial use — Determination of matter insoluble in water or in acid and preparation of principal solutions for other determinations
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Sodium chloride for industrial use — Determination of sulphate content — Barium sulphate gravimetric method
Sodium chloride for industrial use — Determination of halogens, expressed as chlorine — Mercurimetric method
Sodium chloride for industrial use — Determination of calcium and magnesium contents — EDTA complexometric methods
Sodium chloride for industrial use — Determination of the loss of mass at 110 degrees C
Cryolite, natural and artificial — Determination of aluminium content — Atomic absorption method
Sodium fluoride for industrial use — Determination of water-insoluble matter
Sodium fluoride for industrial use — Determination of moisture content
Sodium fluoride for industrial use — Determination of fluorine content — Modified Willard-Winter method
Ammonium sulphate for industrial use — Determination of iron content — 2,2'- Bipyridyl photometric method
Ammonium sulphate for industrial use — Determination of free acidity — Titrimetric method
Sodium chlorate for industrial use — Determination of chlorate content — Dichromate titrimetric method
Ammonium sulphate for industrial use — Determination of ammoniacal nitrogen content — Titrimetric method after distillation
Sodium tripolyphosphate and sodium pyrophosphate for industrial use — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method
Phosphoric acid and sodium phosphates for industrial use (including foodstuffs) — Determination of fluorine content — Alizarin complexone and lanthanum nitrate photometric method
