Standard Test Method for Radiochemical Determination of Uranium Isotopes in Soil by Alpha Spectrometry

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English

Published date

01-02-2011

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American Society for Testing and Materials

CONTAINED IN VOL. 12.01, 2015 Defines the determination of alpha-emitting uranium isotopes in soil.

1.1 This test method covers the determination of alpha-emitting uranium isotopes in soil. This test method describes one acceptable approach to the determination of uranium isotopes in soil.

1.2 The test method is designed to analyze 10 g of soil; however, the sample size may be varied to 50 g depending on the activity level. This test method may not be able to completely dissolve all forms of uranium in the soil matrix. Studies have indicated that the use of hydrofluoric acid to dissolve soil has resulted in lower values than results using total dissolution by fusion.

1.3 The lower limit of detection is dependent on count time, sample size, detector, background, and tracer yield. The chemical yield averaged 78 % in a single laboratory evaluation, and 66 % in an interlaboratory collaborative study.

1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

1.5 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. A specific precautionary statement is given in Section 10.

Committee	C 26
DocumentType	Redline
Pages	5
PublisherName	American Society for Testing and Materials
Status	Current

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ASTM C 1473 : 2011 : REDLINE	Standard Test Method for Radiochemical Determination of Uranium Isotopes in Urine by Alpha Spectrometry
ASTM C 1475 : 2017 : REDLINE	Standard Guide for Determination of Neptunium-237 in Soil

ASTM C 1163 : 2014 : REDLINE	Standard Practice for Mounting Actinides for Alpha Spectrometry Using Neodymium Fluoride
ASTM C 998 : 2017 : REDLINE	Standard Practice for Sampling Surface Soil for Radionuclides
ASTM C 999 : 2017 : REDLINE	Standard Practice for Soil Sample Preparation for the Determination of Radionuclides
ASTM D 3648 : 2014 : REDLINE	Standard Practices for the Measurement of Radioactivity (Withdrawn 2023)
ASTM D 7282 : 2014 : REDLINE	Standard Practice for Set-up, Calibration, and Quality Control of Instruments Used for Radioactivity Measurements

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ASTM C 1000 : 2011 : REDLINE

Standard Test Method for Radiochemical Determination of Uranium Isotopes in Soil by Alpha Spectrometry

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