| 000 | 00000nam 2200000za 4500 |
| 001 | 9.864924 |
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| 003 | CaOODSP |
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| 005 | 20221107161656 |
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| 007 | cr ||||||||||| |
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| 008 | 181119s1981 onc #ot f|0| 0 eng d |
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| 020 | |z0660110474 |
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| 040 | |aCaOODSP|beng |
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| 041 | |aeng|bfre |
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| 043 | |an-cn--- |
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| 086 | 1 |aM38-13/81-11E-PDF|zM38-13/81-11E |
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| 100 | 1 |aSteger, H. F. |
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| 245 | 10|aDH-la |h[electronic resource] : |ba certified uranium-thorium reference ore / |cby H. F. Steger, W. S. Bowman and G. Zechanowitsch. |
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| 260 | |aOttawa : |bEnergy, Mines and Resources Canada, |c1981. |
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| 300 | |aiii, 14 p. : |bfigures. |
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| 490 | 1 |aCANMET report ; |v81-11E |
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| 500 | |aCover title. |
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| 500 | |a"September 1981." |
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| 504 | |aIncludes bibliographic references. |
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| 520 | |a"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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| 546 | |aIncludes synopsis in French. |
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| 692 | 07|2gccst|aMinerals |
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| 692 | 07|2gccst|aChemistry |
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| 700 | 1 |aZechanowitsch, G. |
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| 700 | 1 |aBowman, W. S. |
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| 710 | 1 |aCanada. |bEnergy, Mines and Resources Canada. |
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| 830 | #0|aCANMET report ;|v81-11E.|w(CaOODSP)9.852792 |
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| 856 | 40|qPDF|s1.27 MB|uhttps://publications.gc.ca/collections/collection_2018/rncan-nrcan/m38-13/M38-13-81-11-eng.pdf |
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