ASTM E342-11(2016) PDF

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 and health practices and determine the applicability of regulatory limitations prior to use.

ASTM E342-11(2016) Referenced Document

ASTM D1193 Standard Specification for Reagent Water
ASTM E135 Standard Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
ASTM E276 Standard Test Method for Particle Size or Screen Analysis at No. 4 (4.75-mm) Sieve and Finer for Metal-Bearing Ores and Related Materials
ASTM E50 Standard Practice for Apparatus, Reagents, and safety Precautions for Chemical Analysis of Metals
ASTM E882 Standard Guide for Accountability and Quality Control in the Chemical Analysis Laboratory

2023 ASTM E342-23 Standard Test Method for Determination of Chromium Oxide in Chrome Ores by Permanganate Titrimetry
2016 ASTM E342-11(2016) Standard Test Method for Determination of Chromium Oxide in Chrome Ores by Permanganate Titrimetry
2011 ASTM E342-11 Standard Test Method for Determination of Chromium Oxide in Chrome Ores by Permanganate Titrimetry
2004 ASTM E342-04 Standard Test Method for Determination of Chromium Oxide in Chrome Ores by Permanganate Titrimetry
1999 ASTM E342-99 Standard Test Method for Chromium Oxide in Chrome Ores