Astm D 3883 – 99 pdf free download

Standard Test Methods for
Yarn Crimp and Yarn Take-up in Woven Fabrics1

This standard is issued under the fixed designation D 3883; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of the 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

1.1 This test method covers the determination of the relationship between the length of a piece of fabric and the length
of the yarn in the fabric by measurement of the yarn crimp and
yarn take-up.

1.2 This test method applies to woven fabrics.

1.3 The values stated in either SI or inch-pound units are to
be regarded separately as 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.

1.4 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.

2. Referenced Documents

2.1 ASTM Standards:
D 123 Terminology Relating to Textiles2
D 1776 Practice for Conditioning and Testing Textiles2
D 2904 Practice for Interlaboratory Testing of a Textile Test
The method that Produces Normally Distributed Data2
D 2906 Practice for statements on Precision and Bias for
Textiles2

3. Terminology

3.1 Definitions:

3.1.1 benchmarks, n—marks placed on a specimen to
define gage length, that is, the portion of the specimen that will
be evaluated in a specific test.

3.1.2 yarn crimp, n—in fabric, the undulations or waviness
in a yarn due to interactions with other yarns.

3.1.2.1 Discussion—Yarn crimp in a fabric is the difference
in the measured distance between two points on yarn as it lies
in the fabric, and the same two points when the yarn has been