ASTM E1570-11
Standard Practice for Computed Tomographic (CT) Examination
- Standard No.
- ASTM E1570-11
- Release Date
- 2011
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM E1570-19
- Latest
- ASTM E1570-19
- Scope
This practice is applicable for the systematic assessment of the internal structure of a material or assembly using CT technology. This practice may be used for review by system operators, or to prescribe operating procedures for new or routine test objects.
This practice provides the basis for the formation of a program for quality control and its continuation through calibration, standardization, reference samples, inspection plans, and procedures.
1.1 This practice is for computed tomography (CT), which may be used to nondestructively disclose physical features or anomalies within a test object by providing radiological density and geometric measurements. This practice implicitly assumes the use of penetrating radiation, specifically X-ray and γ-ray.
1.2 CT systems utilize a set of transmission measurements made along paths through the test object from many different directions. Each of the transmission measurements is digitized and stored in a computer, where they are subsequently reconstructed by one of a variety of techniques. A treatment of CT principles is given in Guide E1441.
1.3 CT is broadly applicable to any material or test object through which a beam of penetrating radiation passes. The principal advantage of CT is that it provides densitometric (that is, radiological density and geometry) images of thin cross sections through an object without the structural superposition in projection radiography.
1.4 This practice describes procedures for performing CT examinations. This practice is to address the general use of CT technology and thereby facilitate its use.
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 and health practices and determine the applicability of regulatory limitations prior to use. For specific safety statements, see Section 8, NBS Handbook 114, and Federal Standards 21 CFR 1020.40 and 29 CFR 1910.96.
ASTM E1570-11 Referenced Document
- ANSI N43.3 General Radiation Safety - Installations Using Non-Medical X-Ray and Sealed Gamma-Ray Sources, Energies Up to 10 MeV
- ASTM E1316 Standard Terminology for Nondestructive Examinations
- ASTM E1441 Standard Guide for Computed Tomography (CT)
- ASTM E1695 Standard Test Method for Measurement of Computed Tomography (CT) System Performance
ASTM E1570-11 history
- 2019 ASTM E1570-19 Standard Practice for Computed Tomographic (CT) Examination
- 2011 ASTM E1570-11 Standard Practice for Computed Tomographic (CT) Examination
- 2000 ASTM E1570-00(2005)e1 Standard Practice for Computed Tomographic (CT) Examination
- 2000 ASTM E1570-00 Standard Practice for Computed Tomographic (CT) Examination
