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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| Department/Agency | Canada. Energy, Mines and Resources Canada. |
|---|---|
| Title | DH-la : a certified uranium-thorium reference ore / by H. F. Steger, W. S. Bowman and G. Zechanowitsch. |
| Series title | CANMET report ; 81-11E |
| Publication type | Series - View Master Record |
| Language | [English] |
| Format | Electronic |
| 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. |
| Description | iii, 14 p. : figures. |
| Catalogue number |
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| Subject terms | Minerals Chemistry |
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