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ASTM E385-90(1996)

Current Reaffirmation

Standard Test Method for Oxygen Content Using a 14-MeV Neutron Activation and Direct-Counting Technique

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1.1 This test method covers the measurement of oxygen concentration in almost any matrix by using a 14-MeV neutron activation and direct-counting technique. Essentially, the same system may be used to determine oxygen concentrations ranging from over 50% to about 10 [mu]g/g, or less, depending on the sample size and available 14-MeV neutron fluence rates.

Note 1-The range of analysis may be extended by using higher neutron fluence rates, larger samples, and higher counting efficiency detectors.

1.2 This test method may be used on either solid or liquid samples, provided that they can be made to conform in size, shape, and macroscopic density during irradiation and counting to a standard sample of known oxygen content. Several variants of this method have been described in the technical literature. A monograph is available which provides a comprehensive description of the principles of activation analysis using a neutron generator (1).

1.3 The values stated in either SI or inch-pound units are to be regarded separately as the standard. The values given in parentheses are for information only.

1.4 This standard does not purport to address all of the safety problems 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. Specific precautions are given in Section 8.


SDO ASTM: ASTM International
Document Number E385
Publication Date Jan. 1, 1996
Language en - English
Page Count 7
Revision Level 90(1996)
Supercedes
Committee E10.05
Publish Date Document Id Type View
Feb. 1, 2022 E0385-22 Revision
Jan. 1, 2016 E0385-16 Revision
Nov. 1, 2011 E0385-11 Revision
June 1, 2007 E0385-07 Revision
Jan. 1, 1990 E0385-90 Revision
Jan. 1, 1996 E0385-90R96 Reaffirmation
Oct. 26, 1990 E0385-90R02 Reaffirmation