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Norm
ISO 5399:1984
Issue date: 1984 02 01
Leather — Determination of water-soluble magnesium salts — EDTA titrimetric method
Principle: Aqueous extraction of a test portion, followed by the evaporation and drying at 102 +/-2 degrees centigrade, and sulfating and ashing of the residue at 800 deg...
Withdrawn: 2009 09 24
Publisher:
International Organization for Standardization
Format:
Digital | 3 Pages
Language:
English
ICS
Principle: Aqueous extraction of a test portion, followed by the evaporation and drying at 102 +/-2 degrees centigrade, and sulfating and ashing of the residue at 800 degrees centigrade, to yield the water-soluble inorganic matter. Treatment of the residue with hydrochloric acid, and titration with standard volumetric disodium ethylenedinitrilotetraacetate solution.
