Abstract
Establishes criteria for the purity and describes the test methods for identity tests, residue after ignition, heavy metals content, iron content, appearance of solution. Annex A describes preparation of the standard ammonium cerium(IV) hexanitrate solution.
General information
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Status: PublishedPublication date: 1994-05Stage: International Standard confirmed [90.93]
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Edition: 2Number of pages: 6
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Technical Committee :ISO/TC 42ICS :37.040.30
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Life cycle
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Previously
WithdrawnISO 423:1976
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