Standard Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature

SIGNIFICANCE AND USE
4.1 This test method is particularly applicable to nonrigid thermoplastic sheeting or film made by the calender or extrusion process. The test gives an indication of lot-to-lot uniformity in regards to the degree of internal strains introduced during processing.  
4.2 The heating medium in this test method is air and does not necessarily yield the same results as Test Method D2732, which uses a liquid medium.  
4.3 Before proceeding with this test method, review the specifications of the material being tested, if available. Any test specimen preparation, conditioning, dimensions, or testing parameters, or combination thereof, covered in the relevant ASTM material specification shall take precedence over those mentioned in this test method. If there are no relevant ASTM material specifications, then the default conditions apply. Table 1 of Classification System D4000 lists the ASTM material standards that currently exist.
SCOPE
1.1 This test method covers the measurement of changes in linear dimensions of nonrigid thermoplastic sheeting or film that result from exposure of the material to specified conditions of elevated temperature and time.  
1.2 The values stated in SI units are to be regarded as the standard.  
1.3 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. Note 1—This test method and ISO 11501 address the same matter, but differ in technical content (and results cannot be directly compared between the two methods).

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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D1204 − 14
Standard Test Method for
Linear Dimensional Changes of Nonrigid Thermoplastic
1
Sheeting or Film at Elevated Temperature
This standard is issued under the fixed designation D1204; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 3. Terminology
3.1 Definitions—Terms applicable to this test method are
1.1 This test method covers the measurement of changes in
defined in Terminology D883.
linear dimensions of nonrigid thermoplastic sheeting or film
thatresultfromexposureofthematerialtospecifiedconditions
4. Significance and Use
of elevated temperature and time.
4.1 This test method is particularly applicable to nonrigid
1.2 The values stated in SI units are to be regarded as the
thermoplastic sheeting or film made by the calender or extru-
standard.
sion process. The test gives an indication of lot-to-lot unifor-
1.3 This standard does not purport to address all of the
mity in regards to the degree of internal strains introduced
safety concerns, if any, associated with its use. It is the
during processing.
responsibility of the user of this standard to establish appro-
4.2 The heating medium in this test method is air and does
priate safety and health practices and determine the applica-
not necessarily yield the same results as Test Method D2732,
bility of regulatory limitations prior to use.
which uses a liquid medium.
NOTE 1—This test method and ISO 11501 address the same matter, but
differ in technical content (and results cannot be directly compared 4.3 Before proceeding with this test method, review the
between the two methods).
specificationsofthematerialbeingtested,ifavailable.Anytest
specimen preparation, conditioning, dimensions, or testing
2. Referenced Documents
parameters, or combination thereof, covered in the relevant
2
ASTM material specification shall take precedence over those
2.1 ASTM Standards:
mentioned in this test method. If there are no relevant ASTM
D618 Practice for Conditioning Plastics for Testing
material specifications, then the default conditions apply.Table
D883 Terminology Relating to Plastics
1 of Classification System D4000 lists the ASTM material
D2732 Test Method for Unrestrained Linear Thermal
standards that currently exist.
Shrinkage of Plastic Film and Sheeting
D4000 Classification System for Specifying Plastic Materi-
5. Apparatus
als
5.1 Oven—Amechanical convection oven capable of main-
2.2 ISO Standard
taining a temperature of 100 6 1°C.
ISO 11501 Plastics: Film and Sheeting—Determination of
3
Dimensional Change on Heating
5.2 Scale, graduated in 0.25-mm (0.01-in.) divisions, 30 cm
(12 in.) or more in length.
5.3 Thermometer, graduated in 1°C divisions, with a range
1
This test method is under the jurisdiction ofASTM Committee D20 on Plastics
suitable for the test temperature used.
and is the direct responsibility of Subcommittee D20.19 on Film, Sheeting, and
Molded Products.
5.4 Timer, graduated in minutes.
Current edition approved March 1, 2014. Published March 2014. Originally
approved in 1952. Last previous edition approved in 2008 as D1204 - 08. DOI:
5.5 Template, 25 by 25 cm (10 by 10 in.), for cutting test
10.1520/D1204-14.
2
specimens.
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
5.6 Heavy Paper Sheets, approximately 40 by 40 cm (15 by
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
15 in.), with smooth, wrinkle- and crease-free surfaces.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036, http://www.ansi.org. 5.7 Talc, finely ground.
*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 ----------------------
D1204 − 14
6. Test Specimens 8.2 Place the paper-plastic sandwiches horizontally in the
oven at the temperature and for the length of time applicable to
6.1 Thetestspecimensshallbetwopiecesofthesheetingor
the material being tested. Sandwiches must not be stacked, as
film 25 by 25 cm (10 by 10 in.), cut with the aid of the
this has the potential to restrict the movement of the plastic
template, one from either of the two transverse edges and one
between the papers.
from the center of the sheet as shown in Fig. 1. Each specimen
8.3 At the end of the oven-exposure period, recon
...

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: D1204 − 08 D1204 − 14
Standard Test Method for
Linear Dimensional Changes of Nonrigid Thermoplastic
1
Sheeting or Film at Elevated Temperature
This standard is issued under the fixed designation D1204; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This test method covers the measurement of changes in linear dimensions of nonrigid thermoplastic sheeting or film that
result from exposure of the material to specified conditions of elevated temperature and time.
1.2 The values stated in SI units are to be regarded as the standard.
1.3 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.
NOTE 1—This test method and ISO 11501 address the same matter, but differ in technical content (and results cannot be directly compared between
the two methods).
2. Referenced Documents
2
2.1 ASTM Standards:
D618 Practice for Conditioning Plastics for Testing
D883 Terminology Relating to Plastics
D2732 Test Method for Unrestrained Linear Thermal Shrinkage of Plastic Film and Sheeting
D4000 Classification System for Specifying Plastic Materials
2.2 ISO Standard
3
ISO 11501 Plastics: Film and Sheeting—Determination of Dimensional Change on Heating
3. Terminology
3.1 Definitions—Terms applicable to this test method are defined in Terminology D883.
4. Significance and Use
4.1 This test method is particularly applicable to nonrigid thermoplastic sheeting or film made by the calender or extrusion
process. The test gives an indication of lot-to-lot uniformity asin regards to the degree of internal strains introduced during
processing.
4.2 The heating medium in this test method is air and maydoes not necessarily yield the same results as Test Method D2732,
which uses a liquid medium.
4.3 Before proceeding with this test method, reference should be made to the specificationreview the specifications of the
material being tested. tested, if available. Any test specimen preparation, conditioning, dimensions, or testing parameters, or
combination thereof, covered in the relevant ASTM material specification shall take precedence over those mentioned in this test
method. If there are no relevant ASTM material specifications, then the default conditions apply. Table 1 of Classification System
D4000 lists the ASTM material standards that currently exist.
1
This test method is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.19 on Film, Sheeting, and Molded
Products.
Current edition approved Nov. 1, 2008March 1, 2014. Published November 2008March 2014. Originally approved in 1952. Last previous edition approved in 20072008
as D1204 - 07.D1204 - 08. DOI: 10.1520/D1204-08.10.1520/D1204-14.
2
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
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.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 ----------------------
D1204 − 14
5. Apparatus
5.1 Oven—A mechanical convection oven capable of maintaining a temperature of 100 6 1°C.
5.2 Scale, graduated in 0.25-mm (0.01-in.) divisions, 30 cm (12 in.) or more in length.
5.3 Thermometer, graduated in 1°C divisions, with a range suitable for the test temperature used.
5.4 Timer, graduated in minutes.
5.5 Template, 25 by 25 cm (10 by 10 in.), for cutting test specimens.
5.6 Heavy Paper Sheets, approximately 40 by 40 cm (15 by 15 in.), with smooth, wrinkle- and crease-free surfaces.
5.7 Talc, finely ground.
6. Test Specimens
6.1 The test specimens shall be two pieces of the sheeting or film 25 by 25 cm (10 by 10 in.), cut with the aid of the template,
one from e
...

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