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Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use. Condensed phosphates for industrial use (including foodstuffs) – determination of calcium content – flame atomic absorption spectrometric method
BS 4427-13 – Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use. Condensed phosphates for industrial use (including foodstuffs) – determination of calcium content – flame atomic absorption spectrometric method
Applicable to products with calcium contents equal to or greater than 50 mg/kg.