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Standard
ISO 2991:1974

ISO 2991:1974

Nitric acid for industrial use — Determination of ammoniacal nitrogen content — Spectrophotometric method

Acide nitrique à usage industriel — Dosage de l'azote ammoniacal — Méthode spectrophotométrique

Fecha Anulación:
1974-04-01 / Withdrawn
Committee:
ISO/TC 47 - Chemistry

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