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Specification: tec grade

  Colour index platinum cobalt: 20 max

  Acidity: 85.0%min

  Diluting test (acid + water=1+3): clear

  Chlorides: 0.005%max

  Sulphates (as SO4): 0.002%max

  Metals (as Fe): 0.0005%max.

  Nonvolatilies: 0.020%max

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