BS 4427 discusses the methods of testing for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use.
BS 4427-1 is the first part of the BS 4427 multi-series and describes a method for the determination of the matter which is insoluble in water in sodium tripolyphosphate for industrial use.
BS 4427-1 on determining the matter which is insoluble in water in sodium tripolyphosphate for industrial use is useful for:
The principle of this method of test is the dissolution of the test sample, and the separation of an insoluble matter by filtration, drying and weighing.
BS 4427-1 provides you with reagents and apparatus required for the test procedure. BS 4427-1 guides you on the procedure and expression of results. BS 4427-1 helps you to determine the matter which is insoluble in water in sodium tripolyphosphate for industrial use.