BS 4427 discusses the methods of testing for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use.
BS 4427 is the sixth part of the BS 4427 multi-series and discusses the estimation of pyrophosphate content of tetrasodium pyrophosphate for industrial use.
BS 4427-6 on the estimation of pyrophosphate content of tetrasodium pyrophosphate for industrial use is useful for:
The method is applicable to products containing at least 90 % of tetrasodium pyrophosphate and in the absence of more condensed forms of phosphates. BS 4427-6 provides you with a potentiometric method for the estimation of the pyrophosphate content of tetrasodium pyrophosphate.
BS 4427-6 provides you with the apparatus and reagents for the procedure of determination of the particle size distribution. BS 4427-6 guides you with the procedure and expression of results. BS 4427-6 helps you estimate the pyrophosphate content of tetrasodium pyrophosphate for industrial use.
ISO 2999