BS 4427-3:1989

This standard BS 4427-3:1989 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 describes a spectrometric method for determination of the iron content of condensed phosphates for industrial use (including foodstuffs). It is applicable to products having an iron content of not lower than 2 mg/kg.

NOTE The titles of the publications referred to in this standard are listed on the inside back cover.

1,10-phenanthroline spectrometric method, applicable to products with iron contents of not less than 2 mg/kg.