BS 4427-5:1974

This standard BS 4427-5:1974 Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use is classified in these ICS categories:

• 71.060.50 Salts

This Part of BS 4427 specifies a mechanical sieving method for determination of the particle size distribution of pentasodium triphosphate and tetrasodium pyrophosphate for industrial use.

NOTE The title of the British Standard referred to in this Part is given on the inside back cover.

Mechanical sieving of a test portion under fixed conditions and weighing of each of the fractions.