BS 4427-11-1983
工业用三磷酸钠(三磷酸五钠)和焦磷酸钠(焦磷酸四钠)的试验方法.各种磷酸盐形式的柱色谱分离和测定
Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use - Separation by column chromatography and determination of the different phosphate forms