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Use the form below to find particular standards or projects. Enter your criteria for searching (single or in combination) in the fields below and press the button “Search”. You can also search using the Advance Search facility.
Chemicals used for treatment of water intended for human consumption - Sodium disulfite
90.00 Start of review/2 Year Review Enquiry
Chemicals used for treatment of water intended for human consumption - Ammonium sulfate
90.00 Start of review/2 Year Review Enquiry
Chemicals used for treatment of water intended for human consumption - Sodium sulfite
90.00 Start of review/2 Year Review Enquiry
Cryolite, natural and artificial — Preparation and storage of test samples
90.93 Standard confirmed
Cryolite, natural and artificial — Determination of silica content — Reduced molybdosilicate spectrophotometric method
90.93 Standard confirmed
Sodium and potassium silicates for industrial use — Samples and methods of test — General
90.93 Standard confirmed
Sodium and potassium silicates for industrial use — Calculation of the ratio : silicon dioxide/sodium oxide or silicon dioxide/potassium oxide
90.93 Standard confirmed
Sodium and potassium silicates for industrial use — Determination of silica content — Gravimetric method by insolubilization
90.93 Standard confirmed
Sodium and potassium silicates for industrial use — Determination of carbonates content — Gas-volumetric method
90.93 Standard confirmed
Sodium and potassium silicates for industrial use — Determination of total alkalinity — Titrimetric method
90.93 Standard confirmed
Cryolite, natural and artificial — Determination of fluorine content — Modified Willard-Winter method
90.93 Standard confirmed
Cryolite, natural and artificial — Determination of iron content — 1,10- Phenanthroline photometric method
90.93 Standard confirmed
Materials for the production of primary aluminium — Dense refractory bricks — Determination of cryolite resistance
90.93 Standard confirmed
Sodium and potassium silicates for industrial use — Preparation of solution of products not easily soluble in boiling water and determination of matter insoluble in water
90.93 Standard confirmed
Sodium hydrogen carbonate for industrial use — List of methods of test and preparation of the test sample
90.93 Standard confirmed
Sodium hydrogen carbonate for industrial use — Determination of sodium hydrogen carbonate content — Titrimetric method
90.93 Standard confirmed
Cryolite, natural and artificial — Determination of sodium content — Flame emission and atomic absorption spectrophotometric methods
90.93 Standard confirmed
Cryolite (natural and artificial) — Determination of aluminium content — 8- Hydroxyquinoline gravimetric method
90.93 Standard confirmed