Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use. Measurement of pH value of sodium tripolyphosphate.
NORMA vydána dne 28.2.1969
Designation standards: BS 4427-2:1969
Publication date standards: 28.2.1969
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: British technical standard
Kategorie: Technické normy BS
Potentiometric method for measurement of pH value of a solution at a conventional concentration of 10 g/l by means of a pH meter with a glass electrode Status: Confirmed