ASTM D1943-20
Standard Test Method for Alpha Particle Radioactivity of Water 

Standard No.

ASTM D1943-20

Release Date

2020

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D1943-20

Scope

1.1 This test method covers the measurement of alpha particle activity of water. It is applicable to nuclides that emit alpha particles with energies above 3.9 MeV and at activity levels above 0.02 Bq/mL (540 pCi/L) of radioactive homogeneous water. This test method is not applicable to samples containing alpha-emitting radionuclides that are volatile under conditions of the analysis. 1.2 This test method can be used for either absolute or relative determinations. In tracer work, the results may be expressed by comparison with a standard that is defined to be 100 %. For radioassay, data may be expressed in terms of alpha disintegration rates after calibration with a suitable standard. General information on radioactivity and measurement of radiation has been published in Refs (1-3)2 and summarized in Practices D3648. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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. 1.5 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.

ASTM D1943-20 Referenced Document

• ASTM D1129 Standard Terminology Relating to Water
• ASTM D1193 Standard Specification for Reagent Water
• ASTM D2777 Standard Practice for Determination of Precision and Bias of Applicable Methods of Committee D-19 on Water
• ASTM D3370 Standard Practices for Sampling Water from Closed Conduits
• ASTM D3648 Standard Practices for the Measurement of Radioactivity
• ASTM D4448 Standard Guide for Sampling Ground-Water Monitoring Wells
• ASTM D6001 Standard Guide for Direct-Push Water Sampling for Geoenvironmental Investigations
• ASTM D7282 Standard Practice for Setup, Calibration, and Quality Control of Instruments Used for Radioactivity Measurements*， 2021-05-15 Update
• ASTM D7902 Standard Terminology for Radiochemical Analyses

ASTM D1943-20 history

• 2020 ASTM D1943-20 Standard Test Method for Alpha Particle Radioactivity of Water 
• 2012 ASTM D1943-05(2012) Standard Test Method for Alpha Particle Radioactivity of Water&thinsp
• 2005 ASTM D1943-05 Standard Test Method for Alpha Particle Radioactivity of Water
• 1996 ASTM D1943-96 Standard Test Method for Alpha Particle Radioactivity of Water