ASTM-D2594 Standard Test Method for Stretch Properties of Knitted Fabrics Having Low Power

ASTM-D2594 - 2004 R16 EDITION - CURRENT
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Standard Test Method for Stretch Properties of Knitted Fabrics Having Low Power
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Scope

1.1 This test method covers the measurement of fabric stretch and fabric growth of knitted fabrics intended for applications requiring low-power stretch properties.

1.2 This test method includes procedures for fabric growth and stretch and can be used individually when required by individual specifications.

1.3 This test method is not applicable to fabrics intended for support or other applications requiring high-power stretch properties.

Note 1: For information on testing high-power and woven stretch fabrics, refer to Test Methods D3107 and D6614.

1.4 The values stated in either SI or inch-pound units are to be regarded separately as the standard. Within the text, the inch-pound units are shown in parentheses. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

1.5 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.

Significance and Use

5.1 This test method specifies test conditions for measuring the fabric growth and fabric stretch of knitted fabrics intended for use in swimwear, anchored slacks, and other form-fitting apparel (also commonly known as semi-support apparel) applications, as well as test conditions for measuring the fabric growth of knitted fabrics intended for use in sportswear and other loose-fitting apparel (also commonly known as comfort stretch apparel) applications. The applicability of this test method to the measurement of fabric growth and fabric stretch of knitted fabrics intended for use in slacks, sport coats, and suits has not been determined.

5.2 This test method is not recommended for acceptance testing of commercial shipment because the between-laboratory precision is known to be poor.

5.2.1 If there are differences of practical significance between reported test results for two laboratories (or more), comparative tests should be performed to determine if their is a statistical bias between them, using competent statistical assistance. As a minimum, ensure the test samples to be used are as homogeneous as possible, are drawn from the material from which the disparate test results are obtained, and are assigned randomly in equal numbers to each laboratory for testing. The test results from the two laboratories should be compared using a statistical test for unpaired data, at a probability level chosen prior to the testing series. If a bias is found, either its cause must be found and corrected, or future test results for that material must be adjusted in consideration of the known bias.

Keywords

elastormeric; fabric growth; fabric stretch; knitted fabric; low-power stretch;; ICS Number Code 59.080.30 (Textile fabrics)

To find similar documents by ASTM Volume:

07.01 (Textiles (I): D76 - D4391)

To find similar documents by classification:

59.080.30 (Textile fabrics Including nonwovens, felts, lace, etc.)

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Document Number

ASTM-D2594-04(2016)

Revision Level

2004 R16 EDITION

Status

Current

Modification Type

Reapproval

Publication Date

July 15, 2016

Document Type

Test Method

Page Count

5 pages

Committee Number

D13.59