ISO/TC 47 Chemie,
ISO/TC 47 Chemistry,
ISO/TC 47 Chimie,
ISO Internationale Organisation für Normung,
ISO International Organization for Standardization,
ISO Organisation Internationale de Normalisation
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Media type:
Standard
Title:
ISO 3139
:
Aqueous hydrofluoric acid for industrial use; Sampling and methods of test
Other titles:
Früher unter dem Titel: ISO 3139 (1974-12)
Später unter dem Titel: ISO 3139 AMD 1 (1980-03)
Fluorwasserstoffsäure (Flußsäure) in wässriger Lösung für Industriezwecke; Probenahme und Prüfverfahren
Acide fluorhydrique en solution à usage industriel; Échantillonnage et méthodes d'essai
Description:
Contains also titrimetric methods for determination of the total acidity, the hexafluorosilicic acid content and the non-volatile acids content and a method for calculating the hydrogen fluoric content. Specifies the scope and the field of application of these methods and declares the principle of the procedures. This second edition results from the incorporation of Addendum in the first one. Cancels and replaces the first edition ISO 3139/1974.