ISO 2050:1976
Chlorure de potassium à usage industriel — Dosage du potassium — Méthode par spectro- photométrie de flamme en émission
Numéro de référence
ISO 2050:1976
ISO 2050:1976
Edition 1
1976-03
1976-03
© ISO 2024
Annulée
Résumé
Is applicable to products having a minimum KCl content of about 95 % (m/m). The principle consists in dissolution of a test portion taken from the laboratory sample, previously ground and sifted. Acidification to pH 1 after suitable dilution, and atomization of the resultant solution in the burner of a flame spectrophotometer. Measurement of the intensity of the 766 nm ray, compared with the intensity obtained for standard potassium chloride solutions acidified in the same way. Replaces ISO Recommendation R 2050-1971.
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