Standard Historical Last Updated: Mar 02, 2021
ASTM C1022-93

Standard Test Methods for Chemical and Atomic Absorption Analysis of Uranium-Ore Concentrate

Scope

1.1 These test methods cover procedures for the chemical and atomic absorption analysis of uranium-ore concentrates to determine compliance with the requirements prescribed in Specification C 967.

1.2 The analytical procedures appear in the following order:

Sections
Uranium by Ferrous Sulfate Reduction-Potassium Dichromate Titrimetry9
Nitric Acid-Insoluble Uranium10 to 18
Extractable Organic Material19 to 26
Arsenic by Diethyldithiocarbamate (Photometric Method)27 to 36
Carbonate by CO2 Gravimetry37 to 43
Fluoride by Ion-Selective Electrode44 to 51
Halides by Volhard Titration52 to 59
Moisture by Loss of Weight at 110°C60 to 66
Phosphorus by Spectrophotometry67 to 75
Silicon by Gravimetry76 to 82
Thorium by the Thorin (Photometric) Method83 to 91
Calcium, Iron, Magnesium, Molybdenum, Titanium, and Vana-dium by Atomic Absorption Spectrophotometry92 to 101
Potassium and Sodium by Atomic Absorption Spectrophotometry102 to 111
Boron by Spectrophotometry112 to 121

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. Specific precautionary statements are given in Sections 7, 32, and Note 14.

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Details
Book of Standards Volume: 12.01
Developed by Subcommittee: C26.05
Pages: 19
DOI: 10.1520/C1022-93
ICS Code: 27.120.30