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Test Method for Determination of Chromic Oxide in Basic Chromium Tanning Liquors (Ammonium Persulfate Oxidation)
Automaticky preložený názov:
Skúšobná metóda na stanovenie chrómové oxidu v základnej Chromium Triesloviny Alkohol (amónny Persulfate oxidácia)
NORMA vydaná dňa 1.10.2010
Označenie normy: ASTM D6019-10
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.10.2010
Kód tovaru: NS-33447
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
basic chromium tanning liquors, chrome oxide, Ammonium persulfate oxidation, Chromic oxide, Chrome-tanning materials, Tanning analysis/materials, Tanning liquors, ICS Number Code 59.140.10 (Processes and auxiliary materials), 71.040.40 (Chemical analysis)
Significance and Use |
The procedure described is for the quality control for manufacturing liquors and specifications for the purchase of such liquors. 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. |
1. Scope |
1.1 This test method covers the determination of chromic oxide in chrome tanning liquors, either simple, with added aluminum or zirconium, or with the usual masking complexing agents. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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