ASTM E1441-19
Standard Guide for Computed Tomography (CT)

Standard No.

ASTM E1441-19

Release Date

2019

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM E1441-19

Scope

1.1 CT is a radiographic examination technique that generates digital images in three dimensions of an object, including the interior structure. Because of the relatively good penetrability of X-rays, CT permits the nondestructive physical and, to a limited extent, chemical characterization of the internal structure of materials. Also, since the method is X-ray based, it applies equally well to metallic and non-metallic specimens, solid and fibrous materials, and smooth and irregularly surfaced objects. 1.2 This guide is intended to satisfy two general needs for users of industrial CT equipment: (1) the need for a tutorial guide addressing the general principles of X-ray CT as they apply to industrial imaging; and (2) the need for a consistent set of CT performance parameter definitions, including how these performance parameters relate to CT system specifications. 1.3 This guide does not specify CT examination techniques, such as the best selection of scan parameters, the preferred implementation of scan procedures, or the establishment of accept/reject criteria for a new object. 1.4 Units—No units are mentioned in this document. However, for CT, values are typically stated in SI units and are regarded as standard. 1.5 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. 1.6 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 E1441-19 Referenced Document

• ASTM E1316 Standard Terminology for Nondestructive Examinations*， 2024-02-01 Update
• ASTM E1570 Standard Practice for Computed Tomographic (CT) Examination*， 2024-04-22 Update
• ASTM E1695 Standard Test Method for Measurement of Computed Tomography (CT) System Performance
• ASTM E1935 Standard Test Method for Calibrating and Measuring CT Density*， 2019-12-01 Update
• ASTM E2698 Standard Practice for Radiographic Examination Using Digital Detector Arrays
• ASTM E2736 Standard Guide for Digital Detector Array Radiography*， 2022-12-01 Update
• ASTM E746 Standard Test Method for Determining Relative Image Quality Response of Industrial Radiographic Film

ASTM E1441-19 history

• 2019 ASTM E1441-19 Standard Guide for Computed Tomography (CT)
• 2011 ASTM E1441-11 Standard Guide for Computed Tomography (CT) Imaging
• 2000 ASTM E1441-00(2005) Standard Guide for Computed Tomography (CT) Imaging
• 2000 ASTM E1441-00 Standard Guide for Computed Tomography (CT) Imaging