ASTM C1455-14(2023)
Standard Test Method for Nondestructive Assay of Special Nuclear Material Holdup Using Gamma-Ray Spectroscopic Methods

Standard No.

ASTM C1455-14(2023)

Release Date

2023

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM C1455-14(2023)

Scope

1.1 This test method describes gamma-ray methods used to nondestructively measure the quantity of 235 U or 239 Pu present as holdup in nuclear facilities. Holdup may occur in any facility where nuclear material is processed, in process equipment, in exhaust ventilation systems and in building walls and floors. 1.2 This test method includes information useful for management, planning, selection of equipment, consideration of interferences, measurement program definition, and the utilization of resources (1, 2, 3, 4).2 1.3 The measurement of nuclear material hold up in process equipment requires a scientific knowledge of radiation sources and detectors, transmission of radiation, calibration, facility operations and uncertainty analysis. It is subject to the constraints of the facility, management, budget, and schedule; plus health and safety requirements. The measurement process includes defining measurement uncertainties and is sensitive to the form and distribution of the material, various backgrounds, and interferences. The work includes investigation of material distributions within a facility, which could include potentially large holdup surface areas. Nuclear material held up in pipes, ductwork, gloveboxes, and heavy equipment, is usually distributed in a diffuse and irregular manner. It is difficult to define the measurement geometry, to identify the form of the material, and to measure it without interference from adjacent sources of radiation. 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 C1455-14(2023) Referenced Document

• ANSI N15.36 American National Standard for Methods of Nuclear Material Control - Measurement Control Program - Nondestructive Assay Measurement Control and Assurance*， 2024-04-22 Update
• ASTM C1490 Standard Guide for the Selection, Training and Qualification of Nondestructive Assay (NDA) Personnel
• ASTM C1592 Standard Guide for Nondestructive Assay Measurements*， 2024-04-22 Update
• ASTM C1673 Standard Terminology of C26.10 Nondestructive Assay Methods*， 2024-04-22 Update

ASTM C1455-14(2023) history

• 2023 ASTM C1455-14(2023) Standard Test Method for Nondestructive Assay of Special Nuclear Material Holdup Using Gamma-Ray Spectroscopic Methods
• 2014 ASTM C1455-14e1 Standard Test Method for Nondestructive Assay of Special Nuclear Material Holdup Using Gamma-Ray Spectroscopic Methods
• 2014 ASTM C1455-14 Standard Test Method for Nondestructive Assay of Special Nuclear Material Holdup Using Gamma-Ray Spectroscopic Methods
• 2007 ASTM C1455-07 Standard Test Method for Nondestructive Assay of Special Nuclear Material Holdup Using Gamma-Ray Spectroscopic Methods
• 2000 ASTM C1455-00 Standard Guide for Nondestructive Assay of Special Nuclear Material Holdup Using Gamma-Ray Spectroscopic Methods