ASTM D3774-96(2012)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D3774 − 96(Reapproved 2012)
Standard Test Method for
Width of Textile Fabric
This standard is issued under the fixed designation D3774; 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 (´) 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 3.2 FordefinitionsofallothertextiletermsseeTerminology
D123.
1.1 Thistestmethodcoversthemeasurementofthewidthof
fabrics, pile or napped surface width, or both. The method is
4. Summary of Test Method
applicable to full rolls, bolts of fabric, and short specimens
removed from a roll or bolt. Unless otherwise specified,
4.1 The width of the fabric is measured directly by using a
measurements shall include the selvages when present.
metal rule.
1.2 The method offers two options:
4.2 Option A offers two procedures for the measurement of
1.2.1 Option A—Full Roll or Bolt.
fabric width, or pile width or napped surface width, or both, in
1.2.2 Option B—Short Specimen Removed from Full Roll
full rolls or bolts. The first procedure is essentially a tension-
or Bolt.
free method, the second procedure provides for measurements
1.3 The values stated in either SI units or U.S. customary
made during finishing or inspection operations that may impart
units are to be regarded as standard. The U.S. customary units
tension to the fabric.
may be approximate.
4.3 Option B covers the measurement of fabric width, pile
1.4 This standard does not purport to address all of the
surface width or napped surface width, or both, when only a
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- short length of fabric is available for testing. This procedure is
priate safety and health practices and determine the applica- applicable when a small swatch of fabric is sent to the
bility of regulatory limitations prior to use.
laboratory to be used as the test specimen.
2. Referenced Documents
5. Significance and Use
2.1 ASTM Standards:
5.1 Option A procedures of Test Method D3774 for width
D123 Terminology Relating to Textiles
are considered satisfactory for acceptance testing of commer-
D1776 Practice for Conditioning and Testing Textiles
cial shipments because they are used extensively in the trade.
2.2 Other Standard:
ANSI/ASQC Z1.4—Inspection by Attributes 5.1.1 In case of a dispute arising from differences in
reported test values when using Test Method D3774 for
3. Terminology
acceptance testing of commercial shipments, the purchaser and
3.1 The following terms are relevant to this standard: width,
the supplier should conduct comparative tests to determine if
of a fabric; width, of a raised-surface fabric; width, of a fabric
there is a statistical bias between their laboratories. Competent
woven on a shuttleless loom.
statistical assistance is recommended for the investigation of
bias.As a minimum, the two parties should take a group of test
This test method are under the jurisdiction of ASTM Committee D13 on specimens which are as homogeneous as possible and which
Textiles and are the direct responsibility of Subcommittee D13.60 on Fabric Test
are from a lot of material of the type in question. The test
Methods, Specific.
specimens should then be randomly assigned in equal numbers
Current edition approved July 1, 2012. Published August 2012. Replaces
Sections 13 to 17 of Methods D1910 – 89, Test for Construction Characteristics of to each laboratory for testing.The average results from the two
Woven Fabrics. Originally approved in 1996. Last previous edition approved in
laboratories should be compared using Student’s t-test for
ε1
2008 as D3774–96(2008) . DOI: 10.1520/D3774-96R12.
unpaireddataandanacceptableprobabilitylevelchosenbythe
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 two parties before testing is begun. If a bias is found, either its
Standards volume information, refer to the standard’s Document Summary page on
cause must be found and corrected or the purchaser and the
the ASTM website.
supplier must agree to interpret future test results in the light of
Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036, http://www.ansi.org. the known bias.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D3774 − 96 (2012)
6. Apparatus record the average of all measurements to the nearest 1 mm
( ⁄16) in. Record the minimum and maximum values for each
6.1 Measuring device, metre (yard) stick or steel tape
roll and for the lot.
having 1-mm ( ⁄16-in.) graduations and a length that is greater
9.3 Option B—Laboratory Sample Removed From Full Roll
than the width of fabric to be measured.
or Bolt:
9.3.1 Lay the fabric on a smooth horizontal surface without
7. Sampling
tension in any direction and free of wrinkles or distortion.
7.1 As a lot sample for acceptance testing, take at random
Measure the width of the fabric as defined in 3.1 at three or
the number of rolls of fabric as directed in an applicable
more points separated by at least 0.3 m (1 ft) along the length
material specification or other agreement between the pur-
of the fabric. Do not make measurements closer than 150 mm
chaser and the supplier.
(6 in.) to the cut ends. Calculate the average of all measure-
mentsonthespecimentothenearest1mm( ⁄16in.).Recordthe
7.2 For Option A, consider rolls of fabric to be the primary
average measurement, the maximum measurement, and the
sampling units. Consider the rolls of fabric in the lot sample as
minimum measurement.
the laboratory sample and the points at which measurements
are made within the rolls as test specimens.
10. Report
7.3 For Option B, cut a full width swatch at least2m(2yd)
10.1 State that the specimen was tested as directed in Test
long from each lot sampling unit as a laboratory sampling unit,
Method D3774. Describe the material or product sampled and
taking care that the weave is not distorted within the swatches.
the source of each specimen.
Consider the points at which the measurements are made
10.2 Report the following information:
within the swatch as test specimens. This option is not suitable
10.2.1 Option used and if tension was used in Option A.
for acceptance testing because the results are applicable to that
10.2.2 Number of observations.
swatch only.
10.2.3 Average width as defined in Section 3, in millimetres
(inche
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