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Sodium hydroxide for industrial use — Sampling — Test Sample — Preparation of the main solution for carrying out certain determinations
95.60
Close of voting
Sodium hydroxide for industrial use — Determination of carbonates content — Titrimetric method
90.93
Standard confirmed
Sodium hydroxide for industrial use — Determination of mercury content — Flameless atomic absorption spectrometric method
90.93
Standard confirmed
Sodium hydroxide for industrial use — Method of assay
90.93
Standard confirmed
Sodium hydroxide for industrial use — Determination of chloride content — Mercurimetric method
90.93
Standard confirmed
Sodium hydroxide for industrial use - Detrmination of iron and aluminium content (as Fe2O3 + Al2O3) - Gravimetric method
90.60
Close of review
Sodium hydroxide for industrial use - Determination of aluminium content - Aluminon spectrophotometric method
90.60
Close of review
Sodium hydroxide for industrial use - Detrmination of calcium and magnesium contents - EDTA (disodium salt) complexometric method
90.60
Close of review
Sodium hydroxide for industrial use - Determination of copper content - Spectrophotometric method
90.60
Close of review
Sodium hydroxide for industrial use - Detrmination of manganese content - Spectrophotometric method
90.60
Close of review
Sodium hydroxide for industrial use - Determination of nickel content - Spectrophotometric method
90.60
Close of review
Sodium hydroxide for industrial use - Determination of aluminium content - Eriochrome cyanine R, spectrophotometric method
90.60
Close of review
Sodium hydroxide for industrial use - Determination of sodium hydroxide content - Volumetric method
90.60
Close of review
Sodium hydroxide for industrial use — Determination of carbonates content — Titrimetric method
90.93
Standard confirmed
Sodium hydroxide for industrial use — Determination of mercury content — Flameless atomic absorption spectrometric method
90.93
Standard confirmed
Ammonia solution for industrial use — Determination of ammonia content — Titrimetric method
90.93
Standard confirmed
Ammonia solution for industrial use — Determination of residue after evaporation at 105 degrees C — Gravimetric method
90.93
Standard confirmed
Sodium hydroxide for industrial use — Method of assay
90.93
Standard confirmed
