ASTM F1035-03(2015)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: F1035 − 03 (Reapproved 2015)
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 F1035; 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 for demonstrating the discernment capability of an X-ray
imaging system. (F538)
1.1 This practice describes the construction and use of a
3.1.2 X-ray image plane, n— in tire testing, a surface
rubber-cord pie-shaped standard disk for demonstrating the
located at a specified distance from the X-ray tube “focal spot.”
discernment capability of an X-ray imaging system.
3.1.2.1 Discussion—The centerline of the cone of radiation
1.2 This practice is applicable to direct viewing (fluoro-
from the X-ray tube is normal to the image plane. F538
scopic) X-ray imaging systems and film, plate or paper
3.1.3 X-ray imaging system, n— in tire testing, a collection
(radiographic) X-ray imaging systems that are used for check-
of the components and subsystems needed to produce a
ing the construction consistency of pneumatic tires.
fluoroscopic or radiographic image of the tire.
1.3 The values stated in SI units are to be regarded as the
3.1.3.1 Discussion—The collection includes the X-ray high
standard.
voltage generator, X-ray tube, and X-ray screen or radiograph.
1.4 This standard does not purport to address the safety
F538
concernss associated with its use. It is the responsibility of the
3.1.4 X-ray radiograph, n—an X-ray film, plate, or paper
user of this standard to establish appropriate safety and health
that is placed at the image plane and is used for recording an
practices and determine the applicability of regulatory limita-
X-ray image of the object being examined. F538
tions prior to use.
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
2. Referenced Documents
examined.
2.1 ASTM Standards:
3.1.5.1 Discussion—This visible light may be photographed
D1349 Practice for Rubber—Standard Conditions for Test-
or input to a television system. F538
ing
D3186 Test Methods for Rubber—Evaluation of SBR
4. Summary of Practice
(Styrene-Butadiene Rubber) Mixed With Carbon Black or
4.1 The pie disk is a rubber-cord composite that is used as
Carbon Black and Oil
the subject in an X-ray imaging system. Each of the six
F538 Terminology Relating to the Characteristics and Per-
sections of the disk has a different cord material which,
formance of Tires
together, represent the cords commonly used in vehicle tires.
The X-ray absorption of these cords range from very nearly the
3. Terminology
same as that of the rubber matrix to quite different from it.
3.1 Definitions:
4.2 The rubber-cord pie disk shall be placed between the
3.1.1 pie disk, rubber-cord, n— in tire X-ray testing, a
X-ray tube and the X-ray image plane at a specified distance
circular disk of a specified diameter having six pie-shaped
from the image plane (see Fig. 1). The ambient conditions are
sections, each containing cord of different materials; it is used
controlled or monitored, and recorded.
4.3 The image of the disk on a fluorescent screen or
photograph can be studied for clarity of detail for each cord
This practice is under the jurisdiction of ASTM Committee F09 on Tires and is
the direct responsibility of Subcommittee F09.10 on Equipment, Facilities and
material. The voltage and current of the X-ray high voltage
Calibration.
generator shall be adjusted for optimum detail and contrast
Current edition approved June 1, 2015. Published September 2015. Originally
sensitivity to view all cord materials simultaneously.
approved in 1986. Last previous edition approved in 2008 as F1035 – 03 (2008).
DOI: 10.1520/F1035-03R15.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 5. Significance and Use
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.1 All X-ray systems are subject to changing efficiencies,
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. so a practice for checking the overall operation is needed. This
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1035 − 03 (2015)
FIG. 1 Pie-Cord Disk Test Fixture Positioning for Tire X-Ray System
FIG. 2 Pie-Cord Disk Test Fixture
practice will assure the operator of an optimized image when for a particular sector or cord-type, as may be required for
ambient conditions are controlled and the X-ray high voltage examining a specific tire.
generator is adjusted as prescribed.
6. Preparation of Rubber-Cord Pie Disk
5.2 The densities of some tire cord materials are very close
6.1 Composition:
to that of the rubber matrix in which they are enclosed, so the
6.1.1 The disk shall have six equal-s
...

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: F1035 − 03 (Reapproved 2008) F1035 − 03 (Reapproved 2015)
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 F1035; 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
1.1 This practice describes the construction and use of a rubber-cord pie-shaped standard disk for demonstrating the discernment
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:
D1349 Practice for Rubber—Standard Conditions for Testing
D3186 Test Methods for Rubber—Evaluation of SBR (Styrene-Butadiene Rubber) Mixed With Carbon Black or Carbon Black
and Oil
F538 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. (F538)
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.”
This practice is under the jurisdiction of ASTM Committee F09 on Tires and is the direct responsibility of Subcommittee F09.10 on Equipment, Facilities and Calibration.
Current edition approved Oct. 1, 2008June 1, 2015. Published February 2009September 2015. Originally approved in 1986. Last previous edition approved in 20032008
as F1035 – 03.F1035 – 03 (2008). DOI: 10.1520/F1035-03R08.10.1520/F1035-03R15.
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.
3.1.2.1 Discussion—
The centerline of the cone of radiation from the X-ray tube is normal to the image plane. F538
3.1.3 X-ray imaging system, n— in tire testing, a collection of the components and subsystems needed to produce a fluoroscopic
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. F538
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. F538
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1035 − 03 (2015)
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. F538
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
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.
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.
5.2 The densities of some tire cord materials are very close to that of the rubber matrix in which they are enclosed, so the
resolving capability of an X-ray system is critical to the detection of abnormalities. The rubber-cord pie disk provides a means for
optimizing
...