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ASTM D 7938 : 2015

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Standard Practice for Sampling of C-14 in Gaseous Effluents

Available format(s)

Hardcopy , PDF

Superseded date

09-03-2022

Superseded by

ASTM D 7938 : 2021

Language(s)

English

Published date

12-02-2016

$122.77
Including GST where applicable

CONTAINED IN VOL. 11.02, 2018 Defines sampling of gasses containing [14]C in inorganic, organic or particulate forms.

Committee
D 19
DocumentType
Standard Practice
Pages
6
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

1.1The intended use of this practice is for sampling of gasses containing 14C in inorganic, organic or particulate forms. This sampling practice captures the 14C in a media that can be submitted to a laboratory for analysis, typically by liquid scintillation counting (LSC)

1.2This practice does not include the needed steps for the liberation of 14C from the media on which it was adsorbed or those for the preparation for LSC sample preparation in the laboratory prior to liquid scintillation analysis. This practice does not include the methodology used to analyze the prepared samples by LSC.

1.3The overall 14C analytical detection capability is impacted by a number of factors including the volume sampled, the method used to desorb the 14C from the media, and the analytical method used the measure 14C from the media. This practice only directly addresses the volume of the gas stream from which any present 14C would be adsorbed.

1.4The values stated in pCi units are to be regarded as standard given the reporting requirements of the U.S. NRC Regulatory Guide 1.21. The Bq values given in parenthesis are mathematical conversions to SI units that are provided for information only and are not considered standard. Other values stated in SI units are to be regarded as standard.

1.5This 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.

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ASTM D 7902 : 2016 Standard Terminology for Radiochemical Analyses
ASTM D 7282 : 2014 : REDLINE Standard Practice for Set-up, Calibration, and Quality Control of Instruments Used for Radioactivity Measurements
ASTM D 1129 : 2004 Standard Terminology Relating to Water
ASTM D 7902 : 2018 Standard Terminology for Radiochemical Analyses
ASTM D 7282 : 2014 Standard Practice for Set-up, Calibration, and Quality Control of Instruments Used for Radioactivity Measurements
ASTM D 1129 : 2002 : REV A Standard Terminology Relating to Water
ASTM D 7282 : 2006 Standard Practice for Set-up, Calibration, and Quality Control of Instruments Used for Radioactivity Measurements
ASTM D 1129 : 2010 Standard Terminology Relating to Water
ASTM D 1129 : 2006 : REV A : EDT 1 Standard Terminology Relating to Water
ASTM D 1129 : 2001 Standard Terminology Relating to Water
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