ASTM F2895-15
(Practice)Standard Practice for Digital Radiography of Cast Metallic Implants
Standard Practice for Digital Radiography of Cast Metallic Implants
SIGNIFICANCE AND USE
4.1 The requirements expressed in this practice are intended to control the quality of the digital radiographic image of cast metallic surgical implants.
SCOPE
1.1 This practice covers the procedure for digital radiographic testing of cast metallic surgical implants and related weldments.
1.2 Digital X-ray is an alternative method for radiography of cast metallic surgical implants and related weldments (see Practice F629).
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the 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.
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Designation: F2895 − 15
Standard Practice for
1
Digital Radiography of Cast Metallic Implants
This standard is issued under the fixed designation F2895; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* E2660 Digital Reference Images for Investment Steel Cast-
ings for Aerospace Applications
1.1 This practice covers the procedure for digital radio-
E2669 Digital Reference Images for Titanium Castings
graphic testing of cast metallic surgical implants and related
F629 Practice for Radiography of Cast Metallic Surgical
weldments.
Implants
1.2 Digital X-ray is an alternative method for radiography
2.2 ASNT Standard:
of cast metallic surgical implants and related weldments (see
ASNT–TC–1A Personnel Qualification and Certification in
4
Practice F629).
Nondestructive Testing
1.3 The values stated in either SI units or inch-pound units
3. Terminology
are to be regarded separately as standard. The values stated in
3.1 Definitions—For additional terminology, consult Termi-
each system may not be exact equivalents; therefore, each
nology E1316.
system shall be used independently of the other. Combining
values from the two systems may result in non-conformance
3.2 Definitions of Terms Specific to This Standard:
with the standard.
3.2.1 contrast, n—difference in gray scale level between an
1.4 This standard does not purport to address all of the area and its immediate surroundings as presented on the final
safety concerns, if any, associated with its use. It is the digital radiographic image.
responsibility of the user of this standard to establish appro-
3.2.2 digital image, n—image composed of discrete pixels
priate safety and health practices and determine the applica-
of digital brightness values.
bility of regulatory limitations prior to use.
3.2.3 digital image contrast, n—range of gray scale values
in an image in which a high contrast indicates that the image
2. Referenced Documents
contains largely black-and-white brightness values with a wide
3
2.1 ASTM Standards:
range of gray shades.
E94 Guide for Radiographic Examination
3.2.4 electronic imaging, v—means of converting the image
E192 Reference Radiographs of Investment Steel Castings
stored on the imaging plate or detector into a standard video
for Aerospace Applications
output format.
E746 Practice for Determining Relative Image Quality Re-
3.2.5 electronic imaging system, n—system that takes data
sponse of Industrial Radiographic Imaging Systems
from a storage imaging plate or detector and converts it into a
E1030 Test Method for Radiographic Examination of Me-
standard analog or digital electronic signal.
tallic Castings
E1316 Terminology for Nondestructive Examinations
3.2.6 filters, n—sheets of copper or other material placed in
E1742 Practice for Radiographic Examination
the radiation beam either at the X-ray tube or between the
E2007 Guide for Computed Radiography
specimen and the detector to improve the quality by selectively
E2033 Practice for Computed Radiology (Photostimulable
removing low-energy radiation from the radiation beam and
Luminescence Method)
absorbing scattered radiation.
3.2.7 gray scale, n—numeric values representing display
brightness.
1
ThispracticeisunderthejurisdictionofASTMCommitteeF04onMedicaland
Surgical Materials and Devices and is the direct responsibility of Subcommittee
3.2.8 gray scale range, n—range of numeric values repre-
F04.12 on Metallurgical Materials.
senting the brightest and darkest portion of the image display.
Current edition approved May 15, 2015. Published June 2015. Originally
approved in 2010. Last previous edition approved in 2010 as F2895 – 10. DOI: 3.2.9 image display parameters, n—all variables necessary
10.1520/F2895-15.
to standardize the video image.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4
Standards volume information, refer to the standard’s Document Summary page on Available from theAmerican Society for Nondestructive Testing, Inc., PO Box
the ASTM website. 28518, Columbus, OH 43228-0518, http://www.asnt.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
F2895 − 15
3.2.9.1 Discussion—These include, but are not limited to, 3.2.21 pixel intensity value, PV, n—see Practice E746 for
brightness, contrast, and linearity. description and discussion.
3.2.22 quality level 2, n—quality level des
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F2895 − 10 F2895 − 15
Standard Practice for
1
Digital Radiography of Cast Metallic Implants
This standard is issued under the fixed designation F2895; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope Scope*
1.1 This practice covers the procedure for digital radiographic testing of cast metallic surgical implants and related weldments.
1.2 Digital X-ray is an alternative method for radiography of cast metallic surgical implants and related weldments (see Practice
F629).
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the 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.
2. Referenced Documents
3
2.1 ASTM Standards:
E94 Guide for Radiographic Examination
E192 Reference Radiographs of Investment Steel Castings for Aerospace Applications
E746 Practice for Determining Relative Image Quality Response of Industrial Radiographic Imaging Systems
E1030 Test Method for Radiographic Examination of Metallic Castings
E1316 Terminology for Nondestructive Examinations
E1742 Practice for Radiographic Examination
E2007 Guide for Computed Radiography
E2033 Practice for Computed Radiology (Photostimulable Luminescence Method)
E2660 Digital Reference Images for Investment Steel Castings for Aerospace Applications
E2669 Digital Reference Images for Titanium Castings
F629 Practice for Radiography of Cast Metallic Surgical Implants
2.2 ASNT Standard:
4
ASNT–TC–1A Personnel Qualification and Certification in Nondestructive Testing
3. Terminology
3.1 Definitions—For additional terminology, consult Terminology E1316.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 contrast, n—difference in gray scale level between an area and its immediate surroundings as presented on the final digital
radiographic image.
3.2.2 digital image, n—image composed of discrete pixels of digital brightness values.
3.2.3 digital image contrast, n—range of gray scale values in an image in which a high contrast indicates that the image contains
largely black-and-white brightness values with a wide range of gray shades.
1
This practice is under the jurisdiction of ASTM Committee F04 on Medical and Surgical Materials and Devices and is the direct responsibility of Subcommittee F04.12
on Metallurgical Materials.
Current edition approved Dec. 1, 2010May 15, 2015. Published December 2010June 2015. Originally approved in 2010. Last previous edition approved in 2010 as F2895
– 10. DOI: 10.1520/F2895-10.10.1520/F2895-15.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
4
Available from the American Society for Nondestructive Testing, Inc., PO Box 28518, Columbus, OH 43228-0518, http://www.asnt.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
F2895 − 15
3.2.4 electronic imaging, v—means of converting the image stored on the imaging plate or detector into a standard video output
format.
3.2.5 electronic imaging system, n—system that takes data from a storage imaging plate or detector and converts it into a
standard analog or digital electronic signal.
3.2.6 filters, n—sheets of copper or other material placed in the radiation beam either at the X-ray tube or between the specimen
and the detector to improve the quality by selectively removing low-energy radiation from the radiation beam and absorbing
scattered radiation.
3.2.7 gray scale, n—numeric values representing display brightness.
3.2.8 gray scale range, n—range of numeric values representing the brightest and darkest portion o
...
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