CBPL methods do not include proprietary information such as ASTM Standards.
Test Method for Iron in Iron Ores and Related Materials by Hydrogen Sulfide Reduction and Dichromate Titration (ASTM E 246)
Test Methods for Manganese Dioxide in Manganese Ores (ASTM E 465)
Test Method for Chemical Analysis of Zinc Ores, Concentrates and Related Materials (ASTM E 945)
Test Method for Chromium Oxide in Chrome Ores (ASTM E 342)
Test Method for X-Ray Fluorescence Analysis of Tantalite and Columbite Ores and Slags by Lithium Tetraborate Fusion Technique Utilizing Internal Standards (ASTM E 1244)
Standard Test Method for Spectrographic Analysis of Ores, Minerals and Rocks by the Fire Assay concentration Technique (ASTM E 400)