ASTM E385-22
Standard Test Method for Oxygen Content Using a 14-MeV Neutron Activation and Direct-Counting Technique

Standard No.

ASTM E385-22

Release Date

2022

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM E385-22

Scope

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 under 10 µg/g to over 500 mg/g, 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).2 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.Specific precautions are given in Section 8. 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 E385-22 Referenced Document

• ASTM E170 Standard Terminology Relating to Radiation Measurements and Dosimetry
• ASTM E181 Standard Test Methods for Detector Calibration and Analysis of Radionuclides
• ASTM E496 Standard Test Method for Measuring Neutron Fluence Rate and Average Energy From Neutron Generators by Radioactivation Techniques

ASTM E385-22 history

• 2022 ASTM E385-22 Standard Test Method for Oxygen Content Using a 14-MeV Neutron Activation and Direct-Counting Technique
• 2016 ASTM E385-16 Standard Test Method for Oxygen Content Using a 14-MeV Neutron Activation and Direct-Counting Technique
• 2011 ASTM E385-11 Standard Test Method for Oxygen Content Using a 14-MeV Neutron Activation and Direct-Counting Technique
• 2007 ASTM E385-07 Standard Test Method for Oxygen Content Using a 14-MeV Neutron Activation and Direct-Counting Technique
• 1990 ASTM E385-90(2002) Standard Test Method for Oxygen Content Using a 14-MeV Neutron Activation and Direct-Counting Technique
• 1996 ASTM E385-90(1996) Standard Test Method for Oxygen Content Using a 14-MeV Neutron Activation and Direct-Counting Technique
• 1990 ASTM E385-90 Standard Test Method for Oxygen Content Using a 14-MeV Neutron Activation and Direct-Counting Technique