ASTM D6207-97

Standard Test Method for Dimensional Stability of Fabrics to Changes in Humidity and Temperature

SCOPE
1.1 This test method covers the determination of the dimensional stability of fabrics that are intended for use on panel and screen systems to cycled changes in humidity and temperature.

General Information

• Status: Historical
• Publication Date: 09-Dec-1997
• ICS: 59.080.99 - Other products of the textile industry
• Technical Committee: D13 - Textiles
• Drafting Committee: D13.59 - Fabric Physical Test Methods A

Relations

• Replaced By: ASTM D6207-97(2003) - Standard Test Method for Dimensional Stability of Fabrics to Changes in Humidity and Temperature
• Effective Date: 10-Dec-1997
• Referred By: ASTM D4850-23 - Standard Terminology Relating to Fabrics and Fabric Test Methods
• Effective Date: 10-Dec-1997

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 6207 – 97
Standard Test Method for
Dimensional Stability of Fabrics to Changes in Humidity and
Temperature
This standard is issued under the fixed designation D 6207; 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.
1. Scope 3.1.3 dimensional stability, n—the ability of a material to
retain its length and width dimensions under specified condi-
1.1 This test method covers the determination of the dimen-
tions.
sional stability of fabrics that are intended for use on panel and
3.1.3.1 Discussion—The dimensions are length and width
screen systems to cycled changes in humidity and temperature.
and the specified conditions are those of cycled humidity and
1.1.1 Panel and screen systems include acoustic panels, free
temperature.
standing screens, office partitions, and furniture systems.
3.1.4 For definitions of other terms related to textiles, refer
1.2 The values stated in SI units are to be regarded as the
to Terminology D 123
standard. The values in parentheses are approximate inch-
pound unit equivalents and are for information only.
4. Summary of Test Method
1.3 This standard does not purport to address all of the
4.1 Dimensional change (growth and shrinkage) data is
safety concerns, if any, associated with its use. It is the
collected for a specimen of fabric that is subjected to controlled
responsibility of the user of this standard to establish appro-
cycles of specified relative humidity and temperature condi-
priate safety and health practices and determine the applica-
tions.
bility of regulatory limitations prior to use.
5. Significance and Use
2. Referenced Documents
5.1 The measured dimensional stability of a fabric deter-
2.1 ASTM Standards:
mines whether a fabric has the potential to retain its original
D 123 Terminology Relating to Textiles
shape and remain stable, indicating it will not bubble or sag
D 5034 Test Method for Breaking Strength and Elongation
over time, when applied over a substrate, and its suitability for
of Textile Fabrics (Grab Test)
a specified use.
D 5035 Test Method for Breaking Strength and Elongation
5.2 This test method is recommended for acceptance testing
of Textile Fabrics (Strip Method)
of commercial shipments however, caution is advised since
3. Terminology information about between laboratory precision is incomplete.
Comparative tests as directed in 5.2.1 are advisable.
3.1 Definitions:
5.2.1 In case of a dispute arising from differences in
3.1.1 bench marks, n—marks placed on a specimen to
reported test results when using this test method for acceptance
define gage length, that is, the portion of the specimen that will
testing of fabrics, the purchaser and the supplier should
be evaluated in a specific test.
conduct comparative tests to determine if there is a statistical
3.1.2 dimensional change, n—a generic term for changes in
bias between their laboratories. Competent statistical assis-
length or width of a fabric specimen subjected to specified
tance is recommended for the investigation of bias. As a
conditions.
minimum, the two parties should take a group of test speci-
3.1.2.1 Discussion—When a dimension increases it is often
mens that are as homogeneous as possible and from a lot of
referred to as growth. When a dimension decreases it is often
material of the type in question. The test specimens should be
referred to as shrinkage.
randomly assigned in equal numbers to each laboratory for
testing. The average results from the laboratories should be
compared using appropriate statistical analysis and a probabil-
This test method is under the jurisdiction of ASTM Committee D-13 on Textiles
ity level should be chosen by the two parties before the testing
and is the direct responsibility of Subcommittee D13.59 on Fabrics Test Methods.
begins. If a bias is found, either its cause must be found and
Current edition approved Dec. 10, 1997. Published August 1998.
2 corrected, or the purchaser and supplier must agree to interpret
Annual Book of ASTM Standards, Vol 07.01.
Annual Book of ASTM Standards, Vol 07.02. future test results with consideration to the known bias.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
D6207–97
5.3 This test method is used in industry to determine if a 7.3 Test Specimens—From each laboratory sample swatch,
fabric grows, grows and then shrinks, shrinks and then grows, cut two specimens, each 150 by 1000 6 6 mm (6.0 by 39.0 6
or remains the same when subjected to a specified range of 0.25 in.), one cut in the lengthwise direction of the roll, and one
humidity and temperature conditions. cut in the widthwise direction of the roll (across). Take no
specimen within 10% of the fabric width from the selvage.
Avoid areas with wrinkles.
6. Apparatus
6.1 Environmental Test Chamber, meeting the following
8. Preparation of Apparatus
criteria:
8.1 Check all elements of the environmental test chamber to
6.1.1 Capable of testing two specimens at one time, each
ensure that they are functioning properly. These elements
150 by 1000, 6 6 mm (6.0 by 39.0, 6 0.25 in.) mounted
include, but are not limited to, the humidifier, dehumidifier,
vertically in a single frame.
heater, fan, gages, and recording device.
6.1.2 Capable of a relative humidity range of 15 to 95%,
8.2 Calibrate the test chamber instrumentation as recom-
controllable to 6 5%.
mended by the manufacturer, to maintain relative humidity and
6.1.3 Capable of a temperature range of 15 to 35 °C (59 to
temperature accuracy.
95 °F) with a tolerance of 6 2°C(6 4 °F).
6.1.4 Provision for automatic cycling of humidity and
9. Preparation of Test Specimens
temperature conditions.
9.1 Position and clamp length and width test specimens in
6.1.5 Having visible humidity and temperature indicators
the specimen frame. (See Fig. 2).
and a continuous recording device (digital readout or plotter).
9.2 Attach a weighted spring clamp to the lower end of each
6.2 Specimen Frame, meeting the following criteria:
specimen (see 6.4). Do not remove the weighted springs
6.2.1 Of a size that will fit in the test chamber and hold two
clamps until the test has been completed.
specimens, see Fig. 1.
9.3 Precondition the specimens (see 9.2) for 24 h at 15 +/-
6.2.2 W
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