Test Method for Determination of Chromic Oxide in Basic Chromium Tanning Liquors (Ammonium Persulfate Oxidation)

Importancia y uso:

4.1 The procedure described is for the quality control for manufacturing liquors and specifications for the purchase of such liquors.

4.2 The chromium content of the liquors determines the amount to be used to obtain the desired degree of tannage, and hence may be a matter for specification in the purchase of leather.

Subcomité:

D31.06

Referida por:

D3897-18

Volúmen:

15.04

Número ICS:

59.140.10 (Processes and auxiliary materials), 71.040.40 (Chemical analysis)

Palabras clave:

ammonium persulfate; basic chromium tanning liquors; chrome oxide; reacidified chrome; recycled chrome;