ASTM E1647-98a - 10.5.1998
 
1. Scope

1.1 This practice covers the design and material selection of a contrast sensitivity measuring gage used to determine the minimum material thickness or density that may be imaged without regard to spatial resolution limitations.

1.2 This practice is applicable to transmitted-beam radioscopic imaging systems utilizing X-ray and gamma ray radiation sources.

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

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 and health practices and determine the applicability of regulatory limitations prior to use. For specific safety statements, see NIST/ANSI Handbook 114 Section 8, Code of Federal Regulations 21 CFR 1020.40 and 29 CFR 1910.96.

 
2. Referenced Documents

E1255-23

Standard Practice for Radioscopy

E1316-24

Standard Terminology for Nondestructive Examinations

E1411-23

Standard Practice for Qualification of Radioscopic Systems

E1734-23

Standard Practice for Radioscopic Examination of Castings

E1025-18

Standard Practice for Design, Manufacture, and Material Grouping Classification of Hole-Type Image Quality Indicators (IQI) Used for Radiography

B150/B150M-19

Standard Specification for Aluminum Bronze Rod, Bar, and Shapes

B161-05(2019)

Standard Specification for Nickel Seamless Pipe and Tube

B164-03(2019)

Standard Specification for Nickel-Copper Alloy Rod, Bar, and Wire

B166-19

Standard Specification for Nickel-Chromium-Aluminum Alloy, Nickel-Chromium-Iron Alloys, Nickel-Chromium-Cobalt-Molybdenum Alloy, Nickel-Iron-Chromium-Tungsten Alloy, and Nickel-Chromium-Molybdenum-Copper Alloy Rod, Bar, and Wire

E747-18

Standard Practice for Design, Manufacture and Material Grouping Classification of Wire Image Quality Indicators (IQI) Used for Radiology

B139/B139M-12(2017)

Standard Specification for Phosphor Bronze Rod, Bar, and Shapes

E1742-08

Standard Practice for Radiographic Examination

E2002-22

Standard Practice for Determining Image Unsharpness and Basic Spatial Resolution in Radiography and Radioscopy

E2445-05

Standard Practice for Qualification and Long-Term Stability of Computed Radiology Systems