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U.S. Department of Energy
Office of Scientific and Technical Information

THE PREPARATION OF URANIUM-235 ISOTOPIC STANDARDS BY BLENDING

Technical Report ·
OSTI ID:4813869
Recommended procedures are described in detail, which enable uranium isotopic standards to be prepared with precisiors approaching 1 part in 10/sup 4/. The stoichiometry of uranium oxide (U/sub 3/O/sub 8/) and the weighing process are discussed. Factors affecting the accuracy of weighing solid uranium oxide are discussed, and suitable methods for handling small quantities of material by solution methods are described, together with experimental verification of their reliability. Numerical examples are given of the method of calculating the sensitivity of the balance, the weighing of an object, and the calibration of a set of weights. Sources of error are summarized, and the preparation of blends used to calibrate a uranium standard in this laboratory is described. (auth)
Research Organization:
United Kingdom Atomic Energy Authority. Development and Engineering Group, Capenhurst, Ches., England
NSA Number:
NSA-16-009355
OSTI ID:
4813869
Report Number(s):
DEG-Report-248
Country of Publication:
Country unknown/Code not available
Language:
English