ASTM D1204-94e1

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: 14-Oct-1994
• ICS: 83.140.10 - Films and sheets
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.19 - Film, Sheeting, and Molded Products

Relations

• Replaced By: ASTM D1204-02 - Standard Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature
• 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: 15-Oct-1994
• Referred By: ASTM D1593-22 - Standard Specification for Nonrigid Vinyl Chloride Plastic Film and Sheeting
• Effective Date: 15-Oct-1994
• Referred By: ASTM D3595-14(2019)e1 - Standard Specification for Polychlorotrifluoroethylene (PCTFE) Extruded Plastic Sheet and Film
• Effective Date: 15-Oct-1994
• 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: 15-Oct-1994
• Referred By: ASTM D6878/D6878M-21 - Standard Specification for Thermoplastic Polyolefin-Based Sheet Roofing
• Effective Date: 15-Oct-1994
• Referred By: ASTM D7194-19 - Standard Specification for Aerospace Parts Machined from Polychlorotrifluoroethylene (PCTFE)
• Effective Date: 15-Oct-1994
• Referred By: ASTM D4811/D4811M-16(2023) - Standard Specification for Nonvulcanized (Uncured) Rubber Sheet Used as Roof Flashing
• Effective Date: 15-Oct-1994
• Referred By: ASTM D8065/D8065M-16 - Standard Classification System and Basis for Specification for Specifying Plastic Films
• Effective Date: 15-Oct-1994
• Referred By: ASTM D7832/D7832M-14(2021) - Standard Guide for Performance Attributes of Waterproofing Membranes Applied to Below-Grade Walls / Vertical Surfaces (Enclosing Interior Spaces)
• Effective Date: 15-Oct-1994
• Referred By: ASTM D5147/D5147M-18 - Standard Test Methods for Sampling and Testing Modified Bituminous Sheet Material
• Effective Date: 15-Oct-1994
• Referred By: ASTM D1693-21 - Standard Test Method for Environmental Stress-Cracking of Ethylene Plastics
• Effective Date: 15-Oct-1994
• Referred By: ASTM D4637/D4637M-15(2021)e1 - Standard Specification for EPDM Sheet Used in Single-Ply Roof Membrane
• Effective Date: 15-Oct-1994
• Referred By: ASTM D7176-22 - Standard Specification for Non-Reinforced Polyvinyl Chloride (PVC) Geomembranes Used in Buried Applications
• Effective Date: 15-Oct-1994
• Referred By: ASTM D4801-08(2016) - Standard Specification for Polyethylene Sheeting in Thickness of 0.25 mm (0.010 in.) and Greater
• Effective Date: 15-Oct-1994

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
e1
Designation: D 1204 – 94
Standard Test Method for
Linear Dimensional Changes of Nonrigid Thermoplastic
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.
e NOTE—Editorially changed Footnote 1 to reflect jurisdiction change in April 2002.
1. Scope 3.2 The heating medium in this test method is air and may
not yield the same results as Test Method D 2732, which uses
1.1 This test method covers the measurement of changes in
a liquid medium.
linear dimensions of nonrigid thermoplastic sheeting or film
that result from exposure of the material to specified conditions
4. Apparatus
of elevated temperature and time.
4.1 Oven—A mechanical convection oven capable of main-
1.2 The values stated in SI units are to be regarded as the
taining a temperature of 100 6 1°C.
standard.
4.2 Scale, graduated in 0.25-mm (0.01-in.) divisions, 30 cm
1.3 This standard does not purport to address all of the
(12 in.) or more in length.
safety concerns, if any, associated with its use. It is the
4.3 Thermometer, graduated in 1°C divisions, with a range
responsibility of the user of this standard to establish appro-
suitable for the test temperature used.
priate safety and health practices and determine the applica-
4.4 Timer, graduated in minutes.
bility of regulatory limitations prior to use.
4.5 Template, 25 by 25 cm (10 by 10 in.), for cutting test
NOTE 1—ISO/DIS 11501 describes a similar procedure for determining
specimens.
linear dimensional changes of thermoplastic polymers subjected to el-
4.6 Heavy Paper Sheets, approximately 40 by 40 cm (15 by
evated temperatures.
15 in.), with smooth, wrinkle- and crease-free surfaces.
4.7 Talc, finely ground.
2. Referenced Documents
2.1 ASTM Standards:
5. Test Specimens
D 618 Practice for Conditioning Plastics and Electrical
5.1 The test specimens shall be two pieces of the sheeting or
Insulating Materials for Testing
film 25 by 25 cm (10 by 10 in.), cut with the aid of the
D 2732 Test Method for Unrestrained Linear Thermal
template, one from either of the two transverse edges and one
Shrinkage of Plastic Film and Sheeting
from the center of the sheet as shown in Fig. 1. Each specimen
2.2 ISO Standard
shall be marked to show the direction of calendering or
ISO/DIS 11501, Plastics: Film and Sheeting—
extrusion. The midpoint of each edge shall be marked for use
Determination of Dimensional Change on Heating
as a reference point when final measurements are made.
3. Significance and Use
6. Conditioning
3.1 This test method is particularly applicable to nonrigid
6.1 Conditioning—Condition the test specimens at 23 6
thermoplastic sheeting or film made by the calender or extru-
2°C (73.4 6 3.6°F) and 50 6 5 % relative humidity for not less
sion process. The test gives an indication of lot-to-lot unifor-
than 40 h prior to test in accordance with Procedure A of
mity as regards to the degree of internal strains introduced
Practice D 618, for those tests where conditioning is required.
during processing.
In cases of disagreement, the tolerances shall be6 1°C
(61.8°F) and 62 % relative humidity.
This test method is under the jurisdiction of ASTM Committee D-20 on Plastics
6.2 Test Conditions—Conduct tests in the standard labora-
and is the direct responsibility of Subcommittee D20.19 on Film and Sheeting.
tory atmosphere of 23 6 2°C (73.4 6 3.6°F) and 50 6 5%
Current edition approved Oct. 15, 1994. Published December 1994. Originally
relative humidity, unless otherwise specified in the test meth-
published as D 1204 – 52 T. Last p
...