ASTM D1204-08

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

SIGNIFICANCE AND USE
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 as regards to the degree of internal strains introduced during processing.
The heating medium in this test method is air and may not yield the same results as Test Method D 2732, which uses a liquid medium.
Before proceeding with this test method, reference should be made to the specification of the material being tested. 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 D 4000 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).

General Information

• Status: Historical
• Publication Date: 31-Oct-2008
• ICS: 71.080.99 - Other organic chemicals
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.19 - Film, Sheeting, and Molded Products

Relations

• Replaces: ASTM D1204-07 - Standard Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature
• Effective Date: 01-Nov-2008
• Replaced By: ASTM D1204-14 - Standard Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature
• Effective Date: 01-Mar-2014
• Referred By: ASTM D7613-17(2023) - Standard Specification for Flexible Polypropylene Reinforced (fPP-R) and Nonreinforced (fPP) Geomembranes
• Effective Date: 01-Nov-2008
• Referred By: ASTM D5819-22 - Standard Guide for Selecting Test Methods for Experimental Evaluation of Geosynthetic Durability
• Effective Date: 01-Nov-2008
• Referred By: ASTM D6434-12(2018) - Standard Guide for the Selection of Test Methods for Flexible Polypropylene Geomembranes
• Effective Date: 01-Nov-2008
• Referred By: ASTM D7465/D7465M-15(2023) - Standard Specification for Ethylene Propylene Diene Terpolymer (EPDM) Sheet Used In Geomembrane Applications
• Effective Date: 01-Nov-2008
• Referred By: ASTM C1136-23 - Standard Specification for Flexible, Low Permeance Vapor Retarders for Thermal Insulation
• Effective Date: 01-Nov-2008
• Referred By: ASTM D7176-22 - Standard Specification for Non-Reinforced Polyvinyl Chloride (PVC) Geomembranes Used in Buried Applications
• Effective Date: 01-Nov-2008
• Referred By: ASTM D8257/D8257M-22 - Standard Specification for Mechanically Attached Polymeric Roof Underlayment Used in Steep Slope Roofing
• Effective Date: 01-Nov-2008
• Referred By: ASTM D6455-11(2018) - Standard Guide for the Selection of Test Methods for Prefabricated Bituminous Geomembranes (PBGMs)
• Effective Date: 01-Nov-2008
• Referred By: ASTM D4801-08(2016) - Standard Specification for Polyethylene Sheeting in Thickness of 0.25 mm (0.010 in.) and Greater
• Effective Date: 01-Nov-2008
• Referred By: ASTM D4068-17(2022) - Standard Specification for Chlorinated Polyethylene (CPE) Sheeting for Concealed Water-Containment Membrane
• Effective Date: 01-Nov-2008
• Referred By: ASTM D8065/D8065M-16 - Standard Classification System and Basis for Specification for Specifying Plastic Films
• Effective Date: 01-Nov-2008
• Referred By: ASTM D2643/D2643M-21 - Standard Specification for Prefabricated Bituminous Geomembrane Used as Canal and Ditch Liner (Exposed Type)
• Effective Date: 01-Nov-2008
• Referred By: ASTM F942-18(2023)e1 - Standard Guide for Selection of Test Methods for Interlayer Materials for Aerospace Transparent Enclosures
• Effective Date: 01-Nov-2008

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 − 08
StandardTest 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 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 as 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 may
priate safety and health practices and determine the applica-
not yield the same results as Test Method D2732, which uses
bility of regulatory limitations prior to use.
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, reference
between the two methods).
shouldbemadetothespecificationofthematerialbeingtested.
Any test specimen preparation, conditioning, dimensions, or
2. Referenced Documents
testing parameters, or combination thereof, covered in the
2
relevant ASTM material specification shall take precedence
2.1 ASTM Standards:
over those mentioned in this test method. If there are no
D618 Practice for Conditioning Plastics for Testing
relevantASTM material specifications, then the default condi-
D883 Terminology Relating to Plastics
tions apply. Table 1 of Classification System D4000 lists the
D2732 Test Method for Unrestrained Linear Thermal
ASTM material 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 Nov. 1, 2008. Published November 2008. Originally
approved in 1952. Last previous edition approved in 2007 as D1204 - 07. DOI:
5.5 Template, 25 by 25 cm (10 by 10 in.), for cutting test
10.1520/D1204-08.
2
specimens.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. 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 − 08
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 may restrict movement of the plastic between the papers.
template, one from either of the two transverse edges and one
from the center of the sheet as shown in Fig. 1. Each specimen 8.3 At the end of the oven-exposure period, recondition the
specimens a minimum
...

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:D1204–07 Designation:D1204–08
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 D 1204; 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 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:
D 618 Practice for Conditioning Plastics for Testing
D 883 Terminology Relating to Plastics
D 2732 Test Method for Unrestrained Linear Thermal Shrinkage of Plastic Film and Sheeting
D 4000 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 D 883.
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 as regards to the degree of internal strains introduced during
processing.
4.2 TheheatingmediuminthistestmethodisairandmaynotyieldthesameresultsasTestMethodD 2732,whichusesaliquid
medium.
4.3 Before proceeding with this test method, reference should be made to the specification of the material being tested.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 D 4000 lists the ASTM material standards that
currently exist.
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.
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 and Sheeting .
Current edition approved MarchNov. 1, 2007.2008. Published March 2007.November 2008. Originally approved in 1952. Last previous edition approved in 20022007 as
D 1204 - 027.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. 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 ----------------------
D1204–08
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 either of the two transverse edges and one from the center of the sheet as shown in Fig. 1. Each specimen shall be marked
to show the direction of cal
...