ASTM E1114-03
Standard Test Method for Determining the Focal Size of Iridium-192 Industrial Radiographic Sources

Standard No.

ASTM E1114-03

Release Date

2003

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM E1114-09

Latest

ASTM E1114-20

Scope

One of the factors affecting the quality of a radiographic image is geometric unsharpness. The degree of geometric unsharpness is dependent upon the focal size of the source, the distance between the source and the object to be radiographed, and the distance between the object to be radiographed and the film. This test method allows the user to determine the focal size of the source and to use this result to establish source to object and object to film distances appropriate for maintaining the desired degree of geometric unsharpness.

1.1 This test method covers the determination of the focal size of an iridium-192 radiographic source. The determination is based upon measurement of the image of the iridium metal source in a projection radiograph of the source assembly and comparison to the measurement of the image of a reference sample in the same radiograph.

1.2 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.

ASTM E1114-03 Referenced Document

• ASTM E1316 Standard Terminology for Nondestructive Examinations
• ASTM E1815 Standard Test Method for Classification of Film Systems for Industrial Radiography
• ASTM E999 Standard Guide for Controlling the Quality of Industrial Radiographic Film Processing

ASTM E1114-03 history

• 2020 ASTM E1114-20 Standard Test Method for Determining the Size of Iridium-192, Cobalt-60, and Selenium-75 Industrial Radiographic Sources
• 2009 ASTM E1114-09(2014) Standard Test Method for Determining the Size of Iridium-192 Industrial Radiographic Sources
• 2009 ASTM E1114-09e1 Standard Test Method for Determining the Size of Iridium-192 Industrial Radiographic Sources
• 2009 ASTM E1114-09 Standard Test Method for Determining the Size of Iridium-192 Industrial Radiographic Sources
• 2003 ASTM E1114-03 Standard Test Method for Determining the Focal Size of Iridium-192 Industrial Radiographic Sources
• 1992 ASTM E1114-92(1997)e1 Standard Test Method for Determining the Focal Size of Iridium-192 Industrial Radiographic Sources