Standard

ISO 3628:1994

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Abstract

Establishes criteria for the purity and describes the test methods for residue after ignition, heavy metals content, iron content, appearance of solution.

Document information

  • Standard from ISO
  • Published:
  • Edition: 2
  • Document type: IS
  • Publisher ISO
  • Distributor ISO
  • ICS 37.040.30
  • ISO TC ISO/TC 42

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