Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use. Determination of particle size distribution.
STANDARD published on 7.6.1974
Designation standards: BS 4427-5:1974
Publication date standards: 7.6.1974
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: British technical standard
Category: Technical standards BS
Mechanical sieving of a test portion under fixed conditions and weighing of each of the fractions. Status: Confirmed