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ASTM D 2494 Document Information:
Title
Standard Test Method for Commercial Mass of a Shipment of Yarn or Man-Made Staple Fiber or Tow
ASTM International
Publication Date:
Sep 10, 2002
Scope:
This test method provides a measurement of the commercial mass of a
shipment of yarn or
manufactured staple fiber or tow. This test method applies to (1) yarn
of all fiber types except
silk, glass, asbestos, and bast; (2) tops and slivers of all fiber
types except wool, silk, glass,
asbestos, and bast; and (3) manufactured fibers or tow, except glass
and other fibers used for
special purposes such as flock (Note 1).
NOTE 1 - For other test methods for measuring mass of fibrous
materials, refer to Practice D 2720.
Sampling in this test method is primarily for use in acceptance
testing rather than production
control. manufactured fiber producers usually sample for the
commercial "mass" of product on an
on-going basis rather than each shipment to a customer.
Commercial mass has been traditionally based on one of three options
depending on the state of the
material: (1) dried, unscoured yarn, staple fiber, tow, and so forth,
using commercial moisture
regain in the calculations; (2) dried, scoured yarn, staple fiber,
tow, and so forth, using
commercial moisture regain values in the calculations; and (3) dried,
scoured yarn, staple fiber,
tow, and so forth, using a commercial allowance agreed upon between
the purchaser and the supplier
in the calculations.
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:
- commercial mass
- textile fibers
- textile strand
- yarn
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