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Water Chemicals Codex (1982) / Chapter Skim
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Sodium Zinc Polyphosphate, Glassy
Pages 66-67

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From page 66...
... Purity Requirements: , granules or powder. Analyses of available grades of glassy sodium zinc polyphosphate show the presence of cadmium and lead, but at levels far below that which would necessitate RMIC values based on a maximum dosage of 12.3 to 13.6 mg/liter, depending on the P2O5 content of the specific product used.
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From page 67...
... Sample Analyses: The analyses are to be performed on the sodium zinc polyphosphate solution in accordance with: Standard Methods for the Examination of Water and Waste water, 15th Edition, American Public Health Association, Washington, D.C.
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Key Terms

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  • polyphosphate solution
  • volume below
  • health association
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  • gently heat

  • quantitatively transfer
  • waste water
  • volumetric flask
  • available grades
  • maximum dosage

  • necessitate rmic
  • rmic values
  • standard methods
  • sodium tripolyphosphate
  • loo ml

  • specific product
  • following protocol
  • reagent blank
  • lead section
  • cadmium lead

  • american public
  • american water
  • public health
  • bulk sample
  • soc iation


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