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Derivatives from coal pyrolysis - Coal tar based oils: Coal tar fuel - Specifications and test methods
90.93 Standard confirmed
Hydrogen peroxide for industrial use - Technical requirements
90.93 Standard confirmed
Sodium hydroxide for industrial use - Technical requirements
90.93 Standard confirmed
Sodium hydroxide for industrial use (solution) - Technical requirements
90.93 Standard confirmed
Sodiumhydroxide for industrial use (solid form) - Technical requirements
90.93 Standard confirmed
Hydrogen peroxide for industrial use - Determination of stability - Volumetric method
90.60 Close of review
Hydrogen peroxide for industrial use - Determination of free acid content (as H2SO4) - Volumetric method
90.60 Close of review
Hydrogen peroxide for industrial use - Determination of residue on evaporation - Gravimetric method
90.60 Close of review
Hydrogen peroxide for industrial use - Determination of residue on ignition - Gravimetric method
90.60 Close of review
Hydrogen peroxide for industrial use - Determination of phosphate content - Spectrophotometric method
90.60 Close of review
Sodium hydroxide for industrial use - Determination of carbonates content - Gas-volumetric method
90.60 Close of review
Sodium hydroxide for industrial use - Determination of chlorides content - Volumetric method
90.60 Close of review
Sodium hydroxide for industrial use - Determination of sulphates content - Barium sulphate gravimetric method
90.60 Close of review
Sodium hydroxide for industrial use - Determination of sulphates content - Turbidimetric method
90.60 Close of review
Sodium hydroxide for industrial use - Determination of silica content - Gravimetric method by precipitation of quionoline molybdosilicate
90.60 Close of review