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DH-la : a certified uranium-thorium reference ore / by H. F. Steger, W. S. Bowman and G. Zechanowitsch.M38-13/81-11E-PDF

"A 122-kg sample of a uranium-thorium ore, DH-la, from Elliot Lake, Ontario, was prepared as a compositional reference material to replace the similar certified ore, DH-1, of which the stock had been exhausted. DR-la was ground to minus 74 11M, blended in one lot and bottled in 200-g units. The homogeneity of DH-la with respect to uran-ium was confirmed in CANMET using the volumetric-umpire method. The recommended value for uranium is based on the data from the confirmation of homogeneity. For thorium, twelve laboratories provided results in a "free-choice" analytical program. A statistical analysis of the data gave a recommended value of 0.263% for uranium and 0.091% for thorium"--Synopsis, p. i.

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Publication information
Department/Agency
  • Canada. Energy, Mines and Resources Canada.
TitleDH-la : a certified uranium-thorium reference ore / by H. F. Steger, W. S. Bowman and G. Zechanowitsch.
Series title
  • CANMET report ; 81-11E
Publication typeMonograph - View Master Record
Language[English]
FormatDigital text
Electronic document
Note(s)
  • Cover title.
  • "September 1981."
  • Includes bibliographic references.
  • Includes synopsis in French.
Publishing information
  • Ottawa : Energy, Mines and Resources Canada, 1981.
Author / Contributor
  • Steger, H. F.
  • Zechanowitsch, G.
  • Bowman, W. S.
Descriptioniii, 14 p. : figures.
Catalogue number
  • M38-13/81-11E-PDF
Subject terms
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