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Water Chemicals Codex (1982) / Chapter Skim
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Sodium Tripolyphosphate
Pages 64-65

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From page 64...
... Use: NAS/CWTC 035/82 Na5P3O1o 6HgO 476 Used as corrosion inhibitor, sequestrant, and water softener. Purity Requirements: The analyses are to be performed on the sodium tripolyphosphate show the presence of cadmium and lead but at levels far below that which would necessitate RMIC values based on a maximum dosage of 12.9 mg/liter.
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From page 65...
... Sample Analyses: The analyses are to be performed on the sodium tripolyphosphate solution in accordance with: Standard Methods for the Examination of Water and Wastewater, 15th Edition, American Public Health Association, Washington, D.C.
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Key Terms

  • distilled water
  • deionized distilled
  • tripolyphosphate solution
  • volumetric flask
  • bulk sample

  • health association
  • values based
  • maximum dosage
  • american water
  • necessitate rmic

  • rmic values
  • standard methods
  • following protocol
  • corrosion inhibitor
  • water softener

  • reagent blank
  • lead section
  • public health
  • cadmium lead
  • american public

  • analytical sample


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