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BS 4427-7

74th Edition, June 7, 1974

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Methods of Test for Sodium Tripolyphosphate (Pentasodium Triphosphate) and Sodium Pyrophosphate (Tetrasodium Pyrophosphate) for Industrial Use Part 7: Estimation of Tripolyphosphate (Triphosphate) Content of Sodium Tripolyphosphate

Includes all amendments and changes through Reaffirmation Notice , January 15, 1987

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Product Details:

  • Revision: 74th Edition, June 7, 1974
  • Published Date: January 15, 1987
  • Status: Not Active, See comments below
  • Document Language: English
  • Published By: British Standards Institution (BSI)
  • Page Count: 9
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

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.