ASTM D1204-07

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: 28-Feb-2007
• ICS: 71.080.99 - Other organic chemicals
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.19 - Film, Sheeting, and Molded Products

Relations

• Replaces: ASTM D1204-02 - Standard Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature
• Effective Date: 01-Mar-2007
• Replaced By: ASTM D1204-08 - Standard Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature
• Effective Date: 01-Nov-2008
• Referred By: ASTM D6878/D6878M-21 - Standard Specification for Thermoplastic Polyolefin-Based Sheet Roofing
• Effective Date: 01-Mar-2007
• Referred By: ASTM F942-18(2023)e1 - Standard Guide for Selection of Test Methods for Interlayer Materials for Aerospace Transparent Enclosures
• Effective Date: 01-Mar-2007
• Referred By: ASTM D2732-14(2020) - Standard Test Method for Unrestrained Linear Thermal Shrinkage of Plastic Film<brk/> and Sheeting
• Effective Date: 01-Mar-2007
• Referred By: ASTM D1970/D1970M-21 - Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection
• Effective Date: 01-Mar-2007
• Referred By: ASTM D4434/D4434M-21 - Standard Specification for Poly(Vinyl Chloride) Sheet Roofing
• Effective Date: 01-Mar-2007
• Referred By: ASTM D4551-22 - Standard Specification for Poly(Vinyl Chloride) (PVC) Plastic Flexible Concealed Water-Containment Membrane
• Effective Date: 01-Mar-2007
• Referred By: ASTM D5819-22 - Standard Guide for Selecting Test Methods for Experimental Evaluation of Geosynthetic Durability
• Effective Date: 01-Mar-2007
• Referred By: ASTM D6434-12(2018) - Standard Guide for the Selection of Test Methods for Flexible Polypropylene Geomembranes
• Effective Date: 01-Mar-2007
• Referred By: ASTM D2643/D2643M-21 - Standard Specification for Prefabricated Bituminous Geomembrane Used as Canal and Ditch Liner (Exposed Type)
• Effective Date: 01-Mar-2007
• Referred By: ASTM C1423-21 - Standard Guide for Selecting Jacketing Materials for Thermal Insulation
• Effective Date: 01-Mar-2007
• Referred By: ASTM D7613-17(2023) - Standard Specification for Flexible Polypropylene Reinforced (fPP-R) and Nonreinforced (fPP) Geomembranes
• Effective Date: 01-Mar-2007
• Referred By: ASTM D1693-21 - Standard Test Method for Environmental Stress-Cracking of Ethylene Plastics
• Effective Date: 01-Mar-2007
• Referred By: ASTM D7465/D7465M-15(2023) - Standard Specification for Ethylene Propylene Diene Terpolymer (EPDM) Sheet Used In Geomembrane Applications
• Effective Date: 01-Mar-2007

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:D1204–07
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 (e) 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
1.1 This test method covers the measurement of changes in 3.1 Definitions—Terms applicable to this test method are
linear dimensions of nonrigid thermoplastic sheeting or film defined in Terminology D 883.
thatresultfromexposureofthematerialtospecifiedconditions
4. Significance and Use
of elevated temperature and time.
1.2 The values stated in SI units are to be regarded as the 4.1 This test method is particularly applicable to nonrigid
thermoplastic sheeting or film made by the calender or extru-
standard.
1.3 This standard does not purport to address all of the sion process. The test gives an indication of lot-to-lot unifor-
mity as regards to the degree of internal strains introduced
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- during processing.
4.2 The heating medium in this test method is air and may
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. not yield the same results as Test Method D 2732, which uses
a liquid medium.
NOTE 1—This test method and ISO 11501 address the same matter, but
4.3 Before proceeding with this test method, reference
differ in technical content (and results cannot be directly compared
shouldbemadetothespecificationofthematerialbeingtested.
between the two methods).
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
D 618 Practice for Conditioning Plastics for Testing
relevantASTM material specifications, then the default condi-
D 883 Terminology Relating to Plastics
tions apply. Table 1 of Classification System D 4000 lists the
D 2732 Test Method for Unrestrained Linear Thermal
ASTM material standards that currently exist.
Shrinkage of Plastic Film and Sheeting
D 4000 Classification System for Specifying Plastic Mate-
5. Apparatus
rials
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
5.2 Scale, graduated in 0.25-mm (0.01-in.) divisions, 30 cm
Dimensional Change on Heating
(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 and Sheeting.
5.4 Timer, graduated in minutes.
Current edition approved March 1, 2007. Published March 2007. Originally
approved in 1952. Last previous edition approved in 2002 as D 1204 - 02. 5.5 Template, 25 by 25 cm (10 by 10 in.), for cutting test
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
specimens.
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
15 in.), with smooth, wrinkle- and crease-free surfaces.
the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
5.7 Talc, finely ground.
4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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D1204–07
not be restricted either by the paper or the clips. It is imperative that the
6. Test Specimens
specimens be free to change shape as strains are relieved during the
6.1 Thetestspecimensshallbetwopiecesofthesheetingor
period of test.
film 25 by 25 cm (10 by 10 in.), cut with the aid of the
8.2 Place the paper-plastic sandwiches horizontally in the
template, one from either of the two transverse edges and one
oven at the temperature and for the length of time applicable to
from the center of the sheet as shown in Fig. 1. Each specimen
the material being tested. Sandwiches must not be stacked, as
shall be marked to show the direction of calendering or
this may restrict movement
...