Standard Test Method for Fabric Count of Woven Fabric

SCOPE
1.1 This test method covers the measurement of warp end count and filling pick count and is applicable to all types of woven fabrics.
Note 1—Historically the term fabric count has been used to describe the warp end count and the filling pick count in woven fabrics. The terms warp end count and filling pick count are replacing the term fabric count to provide clarity and agreement with the text and the intent of Test Method D 3775.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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.

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Status
Historical
Publication Date
09-Sep-2003
Technical Committee
Current Stage
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ASTM D3775-03a - Standard Test Method for Fabric Count of Woven Fabric
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D3775–03a
Standard Test Method for
1
Warp End Count and Filling Pick Count of Woven Fabric
This standard is issued under the fixed designation D3775; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 3.1.2 Forothertextiletermsusedinthistestmethod,referto
Terminology D 123.
1.1 This test method covers the measurement of warp end
count and filling pick count and is applicable to all types of
4. Summary of Test Method
woven fabrics.
4.1 The number of warp yarns (ends) per unit distance and
NOTE 1—Historically the term fabric count has been used to describe
filling yarns (picks) per unit distance are determined using
the warp end count and the filling pick count in woven fabrics. The terms
suitable magnifying and counting devices or by raveling yarns
warp end count and filling pick count are replacing the term fabric count
from fabrics.
to provide clarity and agreement with the text and the intent of Test
Method D 3775.
5. Significance and Use
1.2 The values stated in SI units are to be regarded as the
5.1 This test method is considered satisfactory for accep-
standard. The values given in parentheses are for information
tancetestingofcommercialshipmentsbecauseithasbeenused
only.
extensively in the trade for that purpose.
1.3 This standard does not purport to address all of the
5.1.1 If there are differences of practical significance be-
safety concerns, if any, associated with its use. It is the
tween reported test results for two laboratories (or more),
responsibility of the user of this standard to establish appro-
comparative test should be performed to determine if there is a
priate safety and health practices and determine the applica-
statistical bias between them, using competent statistical assis-
bility of regulatory limitations prior to use.
tance. As a minimum, use the samples for such a comparative
test that are as homogeneous as possible, drawn from the same
2. Referenced Documents
lot of material as the samples that resulted in disparate results
2
2.1 ASTM Standards:
during initial testing and randomly assigned in equal numbers
D 123 Terminology Relating to Textiles
to each laboratory. The test results from the laboratories
D 1776 Practice for Conditioning and Testing Textiles
involved should be compared using a statistical test for
D 4850 Terminology Relating to Fabric
unpaired data, a probability level chosen prior to the testing
2.2 Other Standard:
series. If bias is found, either its cause must be found and
3
ANSI/ASQC Z1.4—Inspection by Attributes
corrected, or future test results for that material must be
adjusted in consideration of the known bias.
3. Terminology
3.1 Definitions:
6. Apparatus
3.1.1 For definitions of textile terms used in this test
6.1 Use any suitable device, such as pick glass, rule and
method; count, end, end count, filling, pick, pick count, and
pointer, microfilm reader, or projection equipment.
thread count, refer to Terminology D 4850.
1
6.2 Use a scale graduated in mm ( ⁄16 in.) to measure the
width of the fabric test specimen to be raveled for a count of
1 yarns.
This test method is under the jurisdiction of ASTM Committee D13 on Fabric
Test Methods, Specific
7. Sampling
Current edition approved Sept. 10, 2003. Published November 2003. Replaces
Sections 28 to 34 of Methods D 1910 – 64 (1975). Originally approved in 1979 as
7.1 Lot Sample—As a lot sample for acceptance testing,
D 3775 – 79. Last previous edition approved in 2003 as D 3775 – 03.
2
take at random the number of rolls of fabric as directed in an
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM applicable material specification or other agreement between
Standards volume information, refer tot he standard’s Document Summary page on
thepurchaserandthesupplier.Considerrollsoffabrictobethe
the ASTM website.
3 primary sampling units.
Available from American National Standards Institute, 11 W. 42nd St., 13th
Floor, New York, NY 10036.
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D3775–03a
7.2 Laboratory Sample—As a laboratory sample, take a full width of the laboratory sampling unit. Successively count the
width swatch at least2m(2yd) long from each roll of fabric number of filling yarns (picks) over a 75-mm (3 in.) length in
in the lot sample. Consider each designated place at which five
...

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