ASTM F1035-03(2008)

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.
´1
Designation:F1035–91 (Reapproved 1997) Designation:F1035–03 (Reapproved
2008)
Standard Practice for
Use of Rubber-Cord Pie Disk to Demonstrate the
Discernment Capability of a Tire X-ray Imaging System
This standard is issued under the fixed designation F 1035; 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.
´ NOTE—Section 3 and footnote 4 were modified editorially in March 1998.
1. Scope
1.1 Thispracticedescribestheconstructionanduseofarubber-cordpie-shapedstandarddiskfordemonstratingthediscernment
capability of an X-ray imaging system.
1.2 This practice is applicable to direct viewing (fluoroscopic) X-ray imaging systems and film, plate or paper (radiographic)
X-ray imaging systems that are used for checking the construction consistency of pneumatic tires.
1.3 The values stated in SI units are to be regarded as the standard.
1.4 This standard does not purport to address the safety concernss 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
2.1 ASTM Standards:
D 1349 Practice for Rubber—Standard Temperatures for Testing
D 3186 Test Methods for Rubber—Evaluation of SBR (Styrene-Butadiene Rubber) MixedWith Carbon Black or Carbon Black
and Oil
F 538 Terminology Relating to the Characteristics and Performance of Tires
3. Terminology
3.1 Definitions:
3.1.1 pie disk, rubber-cord, n— in tire X-ray testing, a circular disk of a specified diameter having six pie-shaped sections, each
containing cord of different materials; it is used for demonstrating the discernment capability of an X-ray imaging system.
(F 538)
3.1.2 X-ray image plane, n— in tire testing, a surface located at a specified distance from the X-ray tube “focal spot.”
3.1.2.1 Discussion—The centerline of the cone of radiation from the X-ray tube is normal to the image plane. F 538
3.1.3 X-ray imaging system, n— in tire testing,acollectionofthecomponentsandsubsystemsneededtoproduceafluoroscopic
or radiographic image of the tire.
3.1.3.1 Discussion—The collection includes the X-ray high voltage generator, X-ray tube, and X-ray screen or radiograph.
F 538
3.1.4 X-ray radiograph, n—an X-ray film, plate, or paper that is placed at the image plane and is used for recording an X-ray
image of the object being examined. F 538
3.1.5 X-ray screen, n—a fluorescent screen, placed at the image plane, that produces an X-ray image of the object being
examined.
3.1.5.1 Discussion—This visible light may be photographed or input to a television system. F 538
4. Summary of Practice
4.1 The pie disk is a rubber-cord composite that is used as the subject in an X-ray imaging system. Each of the six sections of
ThispracticeisunderthejurisdictionofASTMCommitteeF-9onTiresandisthedirectresponsibilityofSubcommitteeF09.10onEquipment,Facilities,andCalibration.
Current edition approved Feb. 22, 1991. Published April 1991. Originally published as F1035–86. Last previous edition F1035–86.
ThispracticeisunderthejurisdictionofASTMCommitteeF09onTiresandisthedirectresponsibilityofSubcommitteeF09.10onEquipment,FacilitiesandCalibration.
Current edition approved Oct. 1, 2008. Published February 2009. Originally approved in 1986. Last previous edition approved in 2003 as F 1035 – 03.
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 09.01.volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F1035–03 (2008)
the disk has a different cord material which, together, represent the cords commonly used in vehicle tires. The X-ray absorption
of these cords range from very nearly the same as that of the rubber matrix to quite different from it.
4.2 The rubber-cord pie disk shall be placed between the X-ray tube and the X-ray image plane at a specified distance from the
image plane (see Fig. 1). The ambient conditions are controlled or monitored, and recorded.
FIG. 1 Pie-Cord Disk Test Fixture Positioning for Tire X-Ray System
4.3 The image of the disk on a fluorescent screen or photograph can be studied for clarity of detail for each cord material. The
voltage and current of the X-ray high voltage generator shall be adjusted for optimum detail and contrast sensitivity to view all
cord materials simultaneously.
5. Significance and Use
5.1 All X-ray systems are subject to changing efficiencies, so a practice for checking the overall operation is needed. This
practice will assure the operator of an optimized image when ambient conditions are controlled and the X-ray high voltage
generator is adjusted as prescribed.
FIG. 2 Pie-Cord Disk Test Fi
...