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Cryolite (natural and artificial) — Determination of aluminium content — 8- Hydroxyquinoline gravimetric method
90.93 Standard confirmed
Aluminium oxide primarily used for the production of aluminium — Determination of fluorine content — Alizarin complexone and lanthanum chloride spectrophotometric method
90.93 Standard confirmed
Aluminium oxide primarily used for the production of aluminium — Determination of phosphorus content — Reduced phosphomolybdate spectrophotometric method
90.93 Standard confirmed
Cryolite, natural and artificial — Determination of aluminium content — Atomic absorption method
90.93 Standard confirmed
Aluminium oxide primarily used for the production of aluminium — Determination of boron content — Curcumin spectrophotometric method
90.93 Standard confirmed
Aluminium oxide primarily used for the production of aluminium — Determination of boron content — Curcumin spectrophotometric method — Technical Corrigendum 1
60.60 Standard published
Aluminium oxide used for the production of primary aluminium — Particle size analysis for the range 45 µm to 150 µm — Method using electroformed sieves
90.20 Standard under periodical review
Aluminium oxide primarily used for the production of aluminium — Sampling
90.93 Standard confirmed
Aluminium oxide primarily used for the production of aluminium — Determination of an adsorption index
90.93 Standard confirmed
Cryolite, natural and artificial — Determination of calcium content — Flame atomic absorption method
90.93 Standard confirmed
Cryolite, natural and artificial, and aluminium fluoride for industrial use — Determination of moisture content — Gravimetric method
90.93 Standard confirmed
Sodium fluoride primarily used for the production of aluminium — Determination of iron content — 1,10- Phenanthroline photometric method
90.60 Close of review
Sodium fluoride primarily used for the production of aluminium — Determination of silica content — Reduced molybdosilicate spectrophotometric method
90.60 Close of review
Sodium fluoride primarily used for the production of aluminium — Determination of soluble sulphates content — Turbidimetric method
90.93 Standard confirmed
Sodium fluoride primarily used for the production of aluminium — Determination of chlorides content — Turbidimetric method
90.60 Close of review
Anhydrous hydrogen fluoride for industrial use — Determination of water content — Karl Fischer method
90.60 Close of review
Cryolite, natural and artificial, and aluminium fluoride for industrial use — Determination of sulphate content — Barium sulphate gravimetric method
90.93 Standard confirmed
Cryolite primarily used for the production of aluminium — Determination of elements — Wavelength-dispersive X-ray fluorescence spectrometric method using pressed powder tablets
60.60 Standard published