ISO 5399:1984

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 degrees centigrade, to yield the water-soluble inorganic matter. Treatment of the residue with hydrochloric acid, and titration with standard volumetric disodium ethylenedinitrilotetraacetate solution.

OEN:

ISO

Langue:

English

Code(s) de l'ICS:

59.140.30

Statut:

Annulée

Date de Publication:

1984-01-31

Numéro Standard:

ISO 5399:1984