Gravimetric method using the tri(ethylenediamine) cobalt (II) chloride complex. Not applicable in the presence of metaphosphate but up to 6 per cent of pyrophosphate does not interfere.
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BS 4427-7:1974
Original price was: $264.16.$132.00Current price is: $132.00.
Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use-Estimation of tripolyphosphate (triphosphate) content of sodium tripolyphosphate
BSI Group , 06/07/1974
Pages: 10
