ASTM E 747 : 2018

1.1This practice2 covers the design, material grouping classification, and manufacture of wire image quality indicators (IQI) used to indicate the quality of radiographic images.

1.2This practice is applicable to X-ray and gamma-ray radiography.

1.3This practice covers the use of wire penetrameters as the controlling image quality indicator for the material thickness range from 6.4 to 152 mm (0.25 to 6.0 in.).

1.4The values stated in inch-pound units are to be regarded as standard.

1.5This 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.

1.6This 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.