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Standard Test Method for Determination of Chromium Oxide in Chrome Ores by Permanganate Titrimetry
Name übersetzen
NORM herausgegeben am 1.4.2023
Bezeichnung normen: ASTM E342-23
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.4.2023
SKU: NS-1141610
Zahl der Seiten: 3
Gewicht ca.: 9 g (0.02 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
chromium ores, chromium oxide content, permanganate titrimetry, titrimetry,, ICS Number Code 73.060.30 (Chromium ores)
Significance and Use | ||||||||||
5.1?This test method is intended to be used for compliance with compositional specifications for chromium oxide content in chromium-bearing ores. It is assumed that all who use these procedures will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory and that proper waste disposal procedures will be followed. Appropriate quality control practices must be followed such as those described in Guide E882. |
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1. Scope | ||||||||||
1.1?This test method covers the determination of chromium oxide (Cr2O3) in chrome ores in the compositional range from 25 % to 60 %. Note 1:?As used in this test method, % refers to a mass
fraction (wt/wt %) (g/100g).
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||||||||||
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