ASTM E1815-18R23 - Standard Test Method for Classification of Film Systems for Industrial Radiography
Standard Test Method for Classification of Film Systems for Industrial Radiography
| Standard number: | E1815-18R23 |
| Released: | 01.06.2023 |
| Status: | Active |
| Pages: | 8 |
| Section: | 03.03 |
| Keywords: | ASTM system class; film system; film system classification; gradient; gradient/noise; granularity; industrial radiographic film; speed; |
1.1 This test method covers a procedure for determination of the performance of film systems used for industrial radiography. This test method establishes minimum requirements that correspond to system classes.
1.2 This test method is to be used only for direct exposure-type film exposed with lead intensifying screens. The performance of films exposed with fluorescent (light-emitting) intensifying screens cannot be determined accurately by this test method.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
1.4 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.
1.5 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.