ASTM D1204-02

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

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—ISO/DIS 11501 describes a similar procedure for determining linear dimensional changes of thermoplastic polymers subjected to elevated temperatures.

General Information

• Status: Historical
• Publication Date: 09-Nov-2002
• ICS: 83.140.10 - Films and sheets
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.19 - Film, Sheeting, and Molded Products

Relations

• Replaces: ASTM D1204-94e1 - Standard Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature
• Effective Date: 10-Nov-2002
• Replaced By: ASTM D1204-07 - Standard Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature
• 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: 10-Nov-2002
• Referred By: ASTM D4637/D4637M-15(2021)e1 - Standard Specification for EPDM Sheet Used in Single-Ply Roof Membrane
• Effective Date: 10-Nov-2002
• Referred By: ASTM D6455-11(2018) - Standard Guide for the Selection of Test Methods for Prefabricated Bituminous Geomembranes (PBGMs)
• Effective Date: 10-Nov-2002
• Referred By: ASTM D2643/D2643M-21 - Standard Specification for Prefabricated Bituminous Geomembrane Used as Canal and Ditch Liner (Exposed Type)
• Effective Date: 10-Nov-2002
• Referred By: ASTM D5819-22 - Standard Guide for Selecting Test Methods for Experimental Evaluation of Geosynthetic Durability
• Effective Date: 10-Nov-2002
• Referred By: ASTM C1136-23 - Standard Specification for Flexible, Low Permeance Vapor Retarders for Thermal Insulation
• Effective Date: 10-Nov-2002
• Referred By: ASTM F942-18(2023)e1 - Standard Guide for Selection of Test Methods for Interlayer Materials for Aerospace Transparent Enclosures
• Effective Date: 10-Nov-2002
• Referred By: ASTM D2732-14(2020) - Standard Test Method for Unrestrained Linear Thermal Shrinkage of Plastic Film<brk/> and Sheeting
• Effective Date: 10-Nov-2002
• Referred By: ASTM D5147/D5147M-18 - Standard Test Methods for Sampling and Testing Modified Bituminous Sheet Material
• Effective Date: 10-Nov-2002
• Referred By: ASTM D6754/D6754M-23 - Standard Specification for Ketone Ethylene Ester Based Sheet Roofing
• Effective Date: 10-Nov-2002
• Referred By: ASTM D3595-14(2019)e1 - Standard Specification for Polychlorotrifluoroethylene (PCTFE) Extruded Plastic Sheet and Film
• Effective Date: 10-Nov-2002
• Referred By: ASTM D4801-08(2016) - Standard Specification for Polyethylene Sheeting in Thickness of 0.25 mm (0.010 in.) and Greater
• Effective Date: 10-Nov-2002
• Referred By: ASTM D8065/D8065M-16 - Standard Classification System and Basis for Specification for Specifying Plastic Films
• Effective Date: 10-Nov-2002

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:D1204–02
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 * sion process. The test gives an indication of lot-to-lot unifor-
mity as regards to the degree of internal strains introduced
1.1 This test method covers the measurement of changes in
during processing.
linear dimensions of nonrigid thermoplastic sheeting or film
4.2 The heating medium in this test method is air and may
thatresultfromexposureofthematerialtospecifiedconditions
not yield the same results as Test Method D 2732, which uses
of elevated temperature and time.
a liquid medium.
1.2 The values stated in SI units are to be regarded as the
standard.
5. Apparatus
1.3 This standard does not purport to address all of the
5.1 Oven—Amechanical convection oven capable of main-
safety concerns, if any, associated with its use. It is the
taining a temperature of 100 6 1°C.
responsibility of the user of this standard to establish appro-
5.2 Scale, graduated in 0.25-mm (0.01-in.) divisions, 30 cm
priate safety and health practices and determine the applica-
(12 in.) or more in length.
bility of regulatory limitations prior to use.
5.3 Thermometer, graduated in 1°C divisions, with a range
NOTE 1—ISO/DIS 11501 describes a similar procedure for determining
suitable for the test temperature used.
linear dimensional changes of thermoplastic polymers subjected to el-
5.4 Timer, graduated in minutes.
evated temperatures.
5.5 Template, 25 by 25 cm (10 by 10 in.), for cutting test
specimens.
2. Referenced Documents
5.6 Heavy Paper Sheets, approximately 40 by 40 cm (15 by
2.1 ASTM Standards:
15 in.), with smooth, wrinkle- and crease-free surfaces.
2
D 618 Practice for Conditioning Plastics for Testing
5.7 Talc, finely ground.
2
D 883 Terminology Relating to Plastics
D 2732 Test Method for Unrestrained Linear Thermal
6. Test Specimens
3
Shrinkage of Plastic Film and Sheeting
6.1 Thetestspecimensshallbetwopiecesofthesheetingor
2.2 ISO Standard
film 25 by 25 cm (10 by 10 in.), cut with the aid of the
ISO/DIS 11501, Plastics: Film and Sheeting—
template, one from either of the two transverse edges and one
4
Determination of Dimensional Change on Heating
from the center of the sheet as shown in Fig. 1. Each specimen
shall be marked to show the direction of calendering or
3. Terminology
extrusion. The midpoint of each edge shall be marked for use
3.1 Definitions—Terms applicable to this test method are
as a reference point when final measurements are made.
defined in Terminology D 883.
7. Conditioning
4. Significance and Use
7.1 Conditioning—Unless otherwise required in the appro-
4.1 This test method is particularly applicable to nonrigid
priate materials specification or agreed between customer/
thermoplastic sheeting or film made by the calender or extru-
supplier, condition the test specimens at 23 6 2°C (73.4 6
3.6°F) and 50 6 5 % relative humidity for not less than 40 h
1
This test method is under the jurisdiction ofASTM Committee D20 on Plastics
prior to test, in accordance with ProcedureAof Practice D 618.
and is the direct responsibility of Subcommittee D20.19 on Film and Sheeting.
In case of disagreements, the tolerances shall be 61°C
Current edition approved November 10, 2002. Published January 2003. Origi-
(61.8°F) and 62 % relative humidity.
nally approved in 1952. Last previous edition approved in 1994 as D 1204 - 94.
2
Annual Book of ASTM Standards, Vol 08.01.
3
Annual Book of ASTM Standards, Vol 08.02.
4
Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036.
*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

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D1204–02
humidity. Remove the papers and measure the distance be-
tween the opposite edges of the specimens at the reference
marks to the nearest 0.25 mm (0.01 in.). Shorter reconditioning
times may be used if it can be shown that equivalent results are
obtained.
9. Calculations
9.1 Calculate the linear dimensional change as follows:
Points a, b and x, y are reference marks at midpoint of test specimen edges.
Linear change, % 5 @~D 2 D !/D # 3 100 (1)
f o o
FIG. 1 Method of Cutting Test Specimens from Sample
where:
7.2 Test Conditi
...