ISO 2482:1973 (R2023)
Active , Reaffirmed Standard
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ISO 2482:1973 (R2023)

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

Summary

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.

Notes

90.93 : Norme internationale confirmée

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 02/01/1973
Confirmation Date 11/29/2023
Edition 1
Page Count 3
EAN ---
ISBN ---
Weight (in grams) ---
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