Norm

ISO 2482:1973 en

Sodium chloride for industrial use - Determination of calcium and magnesium contents - EDTA complexometric methods

31,57

Over deze norm

Status Definitief
Aantal pagina's 3
Gepubliceerd op 01-02-1973
Taal Engels
The method is applicable to water-soluble salts for contents greater than 0,001 % (m/m). In a special case, the determination of ions in a principal solution prepared in an acid medium is pooible. The principle consists in dissolution of a test portion and separation of insoluble matter. Titration of the filtrate obtained according to ISO 2479 using disodium ethylendiamintetraacetate (EDTA) in the presence of glyoxal-bis-(2-hydroxyanil) (GBHA) and mordant black 11 (Cl 14645) respectively as indicators.

Details

ICS-code 71.060.50
Nederlandse titel Sodium chloride for industrial use - Determination of calcium and magnesium contents - EDTA complexometric methods
Engelse titel Sodium chloride for industrial use - Determination of calcium and magnesium contents - EDTA complexometric methods

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