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ASTM D 1577 Document Information:
Title
Standard Test Methods for Linear Density of Textile Fibers
ASTM International
Publication Date:
Jan 1, 2007
Scope:
These test methods cover the measurement of mass per unit length
(linear density) of textile fibers and filaments. Direct weighing
and vibroscope procedures with modifications for crimped and
uncrimped fibers are included. The options and sections are listed
below.
NOTE 1—For linear density of short lengths of yarn, refer to
Test Method D 1059. For cotton linear density, refer to Test
Methods D 1769, and D 2480. For measurement of wool diameter, refer
to Test Methods D 1282, D 2130 and D 3510.
The crimp, taper and cross-sectional shape of the fiber may
influence the linear density measured by single-fiber weighing and
vibroscope.
These test methods measure the linear density of fibers with
moisture in equilibrium with the standard atmosphere for testing
textiles. The fiber moisture under these conditions is not
necessarily the same as the commercial moisture regain for the
fibers.
The values stated in either SI units or inch-pound units are to
be regarded separately as standard. 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.
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.
Keywords:
- linear density
- textile fibers
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