ASTM D3776/D3776M-09a(2013)
(Test Method)Standard Test Methods for Mass Per Unit Area (Weight) of Fabric
Standard Test Methods for Mass Per Unit Area (Weight) of Fabric
ABSTRACT
These test methods cover the measurement of fabric mass per unit area (weight) and is applicable to most fabrics. There are four approved options in the measurement of fabric mass per unit area: Option A, Option B, Option C, and Option D. Option A may be used for acceptance testing of commercial shipments since it has been used extensively in the trade. The second option is Option B which is applicable to a full-width sample cut from a full piece, roll, bolt, or cut. Unless otherwise specified, these results will include selvages and will be on the basis of conditioned fabric. Option C on the other hand is applicable when a small swatch of fabric is sent to the laboratory to be used as the test specimen. The results are considered to be applicable to the sample only and not necessarily to the lot from which the sample was taken. Measurements by this method do not include selvages and should be reported as such, unless a selvage allowance is specified. The last option is Option D which is intended for use with narrow fabrics as so designated by the trade.
SCOPE
1.1 These test methods cover the measurement of fabric mass per unit area (weight) and is applicable to most fabrics.
1.2 There are four approved options:
1.2.1 Option A—Full Piece, Roll, Bolt or Cut (Section 7).
1.2.2 Option B—Full Width Sample (Section 8).
1.2.3 Option C—Small Swatch of Fabric (Section 9).
1.2.4 Option D—Narrow Fabrics (Section 10).
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
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.
General Information
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Standards Content (Sample)
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Designation: D3776/D3776M − 09a (Reapproved 2013)
Standard Test Methods for
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Mass Per Unit Area (Weight) of Fabric
This standard is issued under the fixed designation D3776/D3776M; 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. Terminology
3.1 The following terms are relevant to this standard:
1.1 These test methods cover the measurement of fabric
mass per unit area (weight) and is applicable to most fabrics. weight.
3.2 FordefinitionsofallothertextiletermsseeTerminology
1.2 There are four approved options:
1.2.1 Option A—Full Piece, Roll, Bolt or Cut (Section 7). D123.
1.2.2 Option B—Full Width Sample (Section 8).
4. Summary of Test Methods
1.2.3 Option C—Small Swatch of Fabric (Section 9).
4.1 Fabric mass is calculated from the mass of a specimen
1.2.4 Option D—Narrow Fabrics (Section 10).
the length and width of which have been measured as directed
1.3 The values stated in either SI units or inch-pound units
in one of the procedures in Test Method D3773 and D3774.
are to be regarded separately as standard. The values stated in
each system may not be exact equivalents; therefore, each
5. Apparatus
system shall be used independently of the other. Combining
5.1 Scale, with a capacity and sensitivity sufficient to weigh
values from the two systems may result in non-conformance
the full piece, roll, bolt, or cut units to within 60.1 % of their
with the standard.
gross mass. The accuracy of the scale should be certified by a
1.4 This standard does not purport to address all of the
recognized authority.
safety concerns, if any, associated with its use. It is the
5.2 Balance, having a capacity and sensitivity to weigh
responsibility of the user of this standard to establish appro-
within 60.1 % of the mass of the specimens being tested.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. 5.3 Cutting Die, either square or round with an area of at
2 2
least 13 cm or 2 in.
2. Referenced Documents
6. Conditioning
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2.1 ASTM Standards:
6.1 Condition test specimens as directed in Practice D1776.
D123 Terminology Relating to Textiles
D1776 Practice for Conditioning and Testing Textiles 6.2 All weighing tests should be made in the standard
D3773 Test Methods for Length of Woven Fabric
atmosphere for testing textiles (21 6 1°C (70 6 2°F),
D3774 Test Method for Width of Textile Fabric 65 6 2 % RH), after the specimens have been conditioned in
the same atmosphere. It may be impractical to condition the
2.2 Other Standard:
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specimens in Option A or nonconditioned testing may be
ANSI/ASQC Z1.4 Inspection by Attributes
agreed upon by the purchaser and supplier. When the full rolls
or bolts of fabric cannot be properly conditioned in a reason-
able time with available facilities, perform the tests without
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These test methods are under the jurisdiction of ASTM Committee D13 on
conditioning and report the actual conditions prevailing at the
Textiles and are the direct responsibility of Subcommittee D13.60 on Fabric Test
time of the test. Such results may not correspond with the
Methods, Specific.
Current edition approved July 1, 2013. Published September 2013. Replaces resultsobtainedaftertestingadequatelyconditionedspecimens
Sections 35 to 41 of Methods D1910 – 64 (1975). Originally approved in 1979. Last
in the standard atmosphere for testing textiles.
ε2
previous edition approved in 2009 as D3776 – 09a . DOI: 10.1520/D3776_
D3776M-09AR13.
7. Option A—Full Piece, Roll, Bolt, or Cut
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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
7.1 Significance and Use
Standards volume information, refer to the standard’s Document Summary page on
7.1.1 OptionAforthedeterminationofmassperunitareaof
the ASTM website.
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woven fabrics may be used for acceptance testing of commer-
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036, http://www.ansi.org. cial shipments since it has been used extensively in the trade.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D3776/D3776M − 09a (2013)
7.1.2 In case of a dispute arising from differences in where:
reported test values when using Test Methods D3776 for
M = mass of fabric, in pounds,
acceptance testing of commercial shipments, the purchaser and
L = length of fabr
...
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