1.1 This test method covers the semiquantitative spectrographic analysis of high-purity U O for the 32 elements in the ranges indicated in Table 1. (Quantitative analyses of boron, chromium, iron, magnesium, manganese, nickel, and other impurities can be performed using densitometric methods.)

1.2 The test method can be applied to those samples of uranium and uranium compounds, or both, which can be converted to the black oxide (U O ) and which are of approximately 99.5% purity or better.

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.