ASTM D5261-92(1996)
(Test Method)Standard Test Method for Measuring Mass per Unit Area of Geotextiles
Standard Test Method for Measuring Mass per Unit Area of Geotextiles
SCOPE
1.1 This test method can be used as an index to the determination of mass per unit area of all geotextiles.
1.2 The values stated in SI units or other units shall be regarded separately as standard. The values stated in parentheses are provided for information only.
1.3 This standard does not purport to address all of the safety problems, 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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Designation: D 5261 – 92 (Reapproved 1996)
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Measuring Mass per Unit Area of Geotextiles
This standard is issued under the fixed designation D5261; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope method, refer to Terminology D123.
3.3 Fordefinitionsofothertermsrelatingtogeotextilesused
1.1 This test method can be used as an index to the
in this test method, refer to Terminology D4439.
determination of mass per unit area of all geotextiles.
1.2 The values stated in SI units or other units shall be
4. Summary of Test Method
regarded separately as standard.The values stated in parenthe-
4.1 The mass per unit area of a geotextile is determined by
ses are provided for information only.
weighing test specimens of known dimensions, cut from
1.3 This standard does not purport to address all of the
various locations over the full width of the laboratory sample.
safety concerns, if any, associated with its use. It is the
The calculated values are then averaged to obtain the mean
responsibility of the user of this standard to establish appro-
mass per unit area of the laboratory sample.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5. Significance and Use
2. Referenced Documents 5.1 This test method is used to determine if the geotextile
material meets specifications for mass per unit area. This test
2.1 ASTM Standards:
2 method can be used for quality control to determine specimen
D123 Terminology Relating to Textiles
2 conformance.This measurement allows for a simple control of
D1776 Practice for Conditioning Textiles for Testing
3 the delivered material by a comparison of the mass per unit
D4354 Practice for Sampling of Geosynthetics forTesting
3 area of the delivered material and the specified mass per unit
D4439 Terminology for Geotextiles
area.
2.2 ISO/DIS Document:
4 5.2 The procedure in this test method may be used for
9864-1990 Mass per Unit Area of Geotextiles
acceptance testing of commercial shipments, but caution is
3. Terminology advised since information about between-laboratory precision
is incomplete. Comparative tests in accordance with 5.2.1 are
3.1 Definitions:
advisable.
3.1.1 atmosphere for testing geotextiles, n—air maintained
5.2.1 In case of a dispute arising from differences in
at a relative humidity of 656 5% and temperature of 216
reported test results when using the procedures in this test
2°C (706 4°F).
method for acceptance testing of commercial shipments, the
3.1.2 geosynthetic, n—a planar product manufactured from
purchaser and the manufacturer should conduct comparative
polymeric material used with soil, rock, earth, or other
tests to determine if there is a statistical bias between their
geotechnical-engineering-relatedmaterialasanintegralpartof
laboratories. Competent statistical assistance is recommended
a man-made project, structure, or system.
for the investigation of bias. As a minimum, the two parties
3.1.3 geotextile, n—any permeable textile used with foun-
should take a group of test specimens that are as homogeneous
dation,soil,rock,earth,oranyothergeotechnical-engineering-
as possible and which are from a lot of material of the type in
related material as an integral part of a man-made project,
question. The test specimen should then be randomly assigned
structure, or system.
in equal numbers to each laboratory for testing. The average
3.1.4 Discussion—Currenttextilemanufacturingtechniques
resultsfromthetwolaboratoriesshouldbecomparedusingthe
produce: nonwoven fabrics, knitted (non-tabular) fabrics, and
appropriate student’s t-test and an acceptable probability level
woven fabrics.
chosen by the two parties before testing is begun. If a bias is
3.2 For definitions of other textile terms used in this test
found, either its cause must be found and corrected or the
purchaser and the manufacturer must agree to interpret future
This test method is under the jurisdiction of ASTM Committee D-35 on
test results in light of the known bias.
GeosyntheticsandisthedirectresponsibilityofSubcommitteeD35.01onMechani-
cal Properties.
6. Apparatus
Current edition approved June 15, 1992. Published August 1992.
6.1 Balance,calibrated,capableofweighingto5000g,with
Annual Book of ASTM Standards, Vol 07.01.
Annual Book of ASTM Standards, Vol 04.09.
an accuracy of 0.01 g.
Available from ISO Case Postale 5
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