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ASTM D3084-20

ASTM D3084-20

Standard Practice for Alpha-Particle Spectrometry of Water

2020-07-22 /Active
Significance and Use:

5.1 Alpha-particle spectrometry can be used either as a quantitative counting technique or as a qualitative method for informing the analyst of the purity of a given sample.

5.2 The method may be used for evaporated alpha-particle sources, but the quality of the spectra obtained will be limited by the absorbing material on the planchet and the surface finish of the planchet.


1.1 This practice covers the processes that are required to obtain well-resolved alpha-particle spectra from water samples and discusses associated problems. This practice is generally combined with specific chemical separations, mounting techniques, and counting instrumentation, as referenced.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

alpha-particle; alpha-particle spectrometry; alpha pulse-height analysis; pulse-ionization chamber; radioactivity; semiconductor detector; water;
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