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ASTM International - ASTM E242-15

Standard Reference Radiographs for Appearances of Radiographic Images as Certain Parameters are Changed

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Organization: ASTM International
Publication Date: 1 June 2015
Status: inactive
Page Count: 4
ICS Code (Non-destructive testing): 19.100
significance And Use:

4.1 A key consideration with any radiographic system is its contrast resolution and spatial resolution capability (that is, sensitivity). The degree of obtainable sensitivity with a given system... View More

scope:

1.1 This document describes the appearance of a radiographic image where fundamental components of image quality are changed, that is, variables such as whether an X-ray or gamma ray source was used, the characteristics of the radiographic film (gradient, granularity, and developing conditions) and intensifying screens, and specimen thickness (the geometrical configuration of the radiographic set-up and focal spot size both affect image quality but are not considered in the reference radiographs).

1.2 The X-ray film systems used in obtaining the illustrative data were as follows: Very Fine Grain (comparable to class I of Test Method E1815) and Fine Grain (comparable to class II of Test Method E1815).

1.3 These reference radiographs2 consist of four composite illustrations3 and show how such factors as radiation energy, specimen thickness, and film properties affect the radiographic image. The reference radiograph films are an adjunct to this document and must be purchased separately from ASTM if needed.

1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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 and health practices and determine the applicability of regulatory limitations prior to use.

Document History

June 1, 2020
Standard Reference Radiographs for Appearances of Radiographic Images as Certain Parameters are Changed
1.1 This document describes the appearance of a radiographic image where fundamental components of image quality are changed, that is, variables such as whether an X-ray or gamma ray source was used,...
ASTM E242-15
June 1, 2015
Standard Reference Radiographs for Appearances of Radiographic Images as Certain Parameters are Changed
1.1 This document describes the appearance of a radiographic image where fundamental components of image quality are changed, that is, variables such as whether an X-ray or gamma ray source was used,...
June 1, 2010
Standard Reference Radiographs for Appearances of Radiographic Images as Certain Parameters Are Changed
1.1 This document describes the appearance of a radiographic image where fundamental components of image quality are changed, that is, variables such as whether an X-ray or gamma ray source was used,...
December 1, 2005
Standard Reference Radiographs for Appearances of Radiographic Images as Certain Parameters Are Changed
1.1 This document describes the appearance of a radiographic image where fundamental components of image quality are changed, that is, variables such as whether an X-ray or gamma ray source was used,...
June 10, 2001
Standard Reference Radiographs for Appearances of Radiographic Images as Certain Parameters Are Changed
1.1 This document describes the appearance of a radiographic image where fundamental components of image quality are changed, that is, variables such as whether a X-ray or gamma ray source was used,...
June 10, 2001
Standard Reference Radiographs for Appearances of Radiographic Images as Certain Parameters Are Changed
1.1 This document describes the appearance of a radiographic image where fundamental components of image quality are changed, that is, variables such as whether a X-ray or gamma ray source was used,...
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