BS 3674:1981

This standard BS 3674:1981 Specification for sodium carbonate (technical grades) is classified in these ICS categories:

• 71.060.50 Salts

This British Standard specifies requirements for sodium carbonate decahydrate and anhydrous sodium carbonate of technical quality suitable for general industrial purposes.

This standard does not apply to sodium carbonate for medical or pharmaceutical use or to a grade for photographic use.

NOTE These grades are covered by the British Pharmacopoeia and BS 3305 respectively.

Specification for the anhydrous material and the decahydrate. Includes requirements for total soluble alkali content, matter insoluble in water, sulphate, chloride, iron and copper contents. Test methods not included but reference is made to BS 6070.