ASTM D3776-07

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D3776–07
Standard Test Methods for
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Mass Per Unit Area (Weight) of Fabric
This standard is issued under the fixed designation D 3776; 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.
1. Scope 4. Summary of Test Methods
1.1 These test methods cover the measurement of fabric 4.1 Fabric mass is calculated from the mass of a specimen
mass per unit area (weight) and is applicable to most fabrics. the length and width of which have been measured as directed
1.2 There are four approved options: in one of the procedures in Test Method D 3773 and D 3774.
1.2.1 Option A—Full Piece, Roll, Bolt or Cut (Section 7).
5. Apparatus
1.2.2 Option B—Full Width Sample (Section 8).
5.1 Scale, with a capacity and sensitivity sufficient to weigh
1.2.3 Option C—Small Swatch of Fabric (Section 9).
1.2.4 Option D—Narrow Fabrics (Section 10). the full piece, roll, bolt, or cut units to within 60.1 % of their
gross mass. The accuracy of the scale should be certified by a
1.3 The values either in SI units or U.S. customary units are
regarded as standard. U.S. customary units may be approxi- recognized authority.
5.2 Balance, having a capacity and sensitivity to weigh
mate.
1.4 This standard does not purport to address all of the within 60.1 % of the mass of the specimens being tested.
5.3 Cutting Die, either square or round with an area of at
safety concerns, if any, associated with its use. It is the
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responsibility of the user of this standard to establish appro- least 13 cm or 4 in.
priate safety and health practices and determine the applica-
6. Conditioning
bility of regulatory limitations prior to use.
6.1 Condition test specimens as directed in Practice D 1776.
2. Referenced Documents
6.2 All weighing tests should be made in the standard
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2.1 ASTM Standards: atmosphere for testing textiles (20 6 1°C (70 6 2°F),
65 6 2 % RH), after the specimens have been conditioned in
D 123 Terminology Relating to Textiles
D 1776 Practice for Conditioning and Testing Textiles the same atmosphere. It may be impractical to condition the
D 3773 Test Methods for Length of Woven Fabric specimens in Option A or nonconditioned testing may be
agreed upon by the purchaser and supplier. When the full rolls
D 3774 Test Method for Width of Textile Fabric
D 4850 Terminology Relating to Fabric or bolts of fabric cannot be properly conditioned in a reason-
able time with available facilities, perform the tests without
3. Terminology
conditioning and report the actual conditions prevailing at the
3.1 For all terminology relating to D13.60, Fabric Test time of the test. Such results may not correspond with the
Methods, Specific refer to Terminology D 4850. results obtained after testing adequately conditioned specimens
3.1.1 The following terms are relevant to this standard: in the standard atmosphere for testing textiles.
weight, as used with fabric
7. OptionA—Full Piece, Roll, Bolt, or Cut
3.2 For definitions of other textile terms used in this test
7.1 Significance and Use
method, refer to Terminology D 123.
7.1.1 OptionAforthedeterminationofmassperunitareaof
woven fabrics may be used for acceptance testing of commer-
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These test methods are under the jurisdiction of ASTM Committee D13 on
cial shipments since it has been used extensively in the trade.
Textiles and are the direct responsibility of Subcommittee D13.60 on Fabric Test
7.1.2 In case of a dispute arising from differences in
Methods, Specific.
reported test values when using Test Methods D 3776 for
Current edition approved July 1, 2007. Published August 2007. Replaces
acceptance testing of commercial shipments, the purchaser and
Sections 35 to 41 of Methods D 1910 – 64 (1975). Originally approved in 1979.
Last previous edition approved in 2002 as D 3776 – 96(2002).
the supplier should conduct comparative tests to determine if
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
there is a statistical bias between their laboratories. Competent
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
statistical assistance is recommended for the investigation of
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. bias.As a minimum, the two parties should take a group of test
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D3776–07
Mass, g/m 5 oz/yd 3 31.000 (8)
specimens which are as homogeneous as possible and which
are from a lot of material of the type in question. The
...