Sulphur for industrial use — Determination of loss in mass at 80 degrees C
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Sodium fluoride for industrial use — Preparation and storage of test samples
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Anhydrous hydrogen fluoride for industrial use — Determination of water content — Karl Fischer method
Sulphur for industrial use — Determination of acidity — Titrimetric method
Sulphur for industrial use — Determination of arsenic content — Silver diethyldithiocarbamate photometric method
Phosphoric acid for industrial use (including foodstuffs) — Determination of total phosphorus (V) oxide content — Quinoline phosphomolybdate gravimetric method
Phosphoric acid for industrial use (including foodstuffs) — Determination of calcium content — Flame atomic absorption method
Cryolite, natural and artificial, and aluminium fluoride for industrial use — Determination of sulphate content — Barium sulphate gravimetric method
Sodium hexafluorosilicate for industrial use — Determination of free acidity and total hexafluorosilicate content — Titrimetric method
Phosphoric acid for industrial use — Guide to sampling techniques
Condensed phosphates for industrial use (including foodstuffs) — Determination of calcium content — Flame atomic absorption spectrometric method
Sodium hexafluorosilicate for industrial use — Determination of phosphate content — Molybdovanadate spectrophotometric method
Sodium fluorosilicate for industrial use — Determination of loss in mass at 105 degrees C
Cryolite, natural and artificial, and aluminium fluoride for industrial use — Determination of sulphur content — X-ray fluorescence spectrometric method
Sodium hydroxide for industrial use — Determination of mercury content — Flameless atomic absorption spectrometric method
