ASTM D5199-12
(Test Method)Standard Test Method for Measuring the Nominal Thickness of Geosynthetics
Standard Test Method for Measuring the Nominal Thickness of Geosynthetics
SIGNIFICANCE AND USE
Thickness is one of the basic physical properties used to control the quality of many geosynthetics. Thickness values can be required for calculation of some geosynthetics properties such as permeability and tensile stress, among others.
The thickness of some geosynthetics may vary considerably with the applied normal load. Specific pressures and surfaces on which they are applied are indicated in this method to ensure all results are comparable.
This test method may be used for acceptance testing of commercial shipments of geosynthetics for which this method is applicable (see 1.1).
Note 1—The user should be aware that the compressibility of some materials, their rebound characteristics, and other phenomenon will affect the thickness of some geosynthetics, following the time when they are rolled up, shipped and stored.
SCOPE
1.1 This test method covers the measurement of the nominal thickness of geosynthetics, except textured and some structured geomembranes where the entire surface of the presser foot cannot come into complete contact with the geosynthetic surface.
1.2 This test method does not provide thickness values for geosynthetics under variable normal compressive stresses. This test method determines nominal thickness, not necessarily minimum thickness.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
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.
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Designation: D5199 − 12
Standard Test Method for
1
Measuring the Nominal Thickness of Geosynthetics
This standard is issued under the fixed designation D5199; 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.
1. Scope E691 Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method
1.1 Thistestmethodcoversthemeasurementofthenominal
thickness of geosynthetics, except textured and some struc-
3. Terminology
tured geomembranes where the entire surface of the presser
foot cannot come into complete contact with the geosynthetic
3.1 For definitions of other terms relating to geotextiles and
surface.
geomembranes used in this standard, refer to Terminology
D4439. For definition of other textile terms used in this
1.2 This test method does not provide thickness values for
standard, refer to Terminology D123.
geosyntheticsundervariablenormalcompressivestresses.This
test method determines nominal thickness, not necessarily
3.2 Definitions:
minimum thickness.
3.2.1 pressure, n—the force or load per unit area.
1.3 The values stated in SI units are to be regarded as
3.2.2 thickness—(1)thedistancebetweenoneplanarsurface
standard. The values given in parentheses are for information
and its opposite parallel and planar surface; (2) in the textiles
only.
the distance between the upper and lower surfaces of the
material, measured under a specified pressure and time.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3.2.3 structured geomembrane, n—geomembrane consist-
responsibility of the user of this standard to establish appro-
ing of a flat core and protrusions on one or both sides 3.1.3 For
priate safety and health practices and determine the applica-
definitions of other terms relating to geotextiles and geomem-
bility of regulatory limitations prior to use.
branes used in this standard, refer to Terminology D4439.
2. Referenced Documents
4. Summary of Test Method
2
2.1 ASTM Standards:
4.1 The nominal thickness of geosynthetics is determined
D123 Terminology Relating to Textiles
by observing the distance between two parallel surfaces
D1776 Practice for Conditioning and Testing Textiles
confining the tested material while under a specified pressure,
D2905 Practice for Statements on Number of Specimens for
3 after 5 seconds.
Textiles (Withdrawn 2008)
D4354 Practice for Sampling of Geosynthetics and Rolled
5. Significance and Use
Erosion Control Products (RECPs) for Testing
D4439 Terminology for Geosynthetics
5.1 Thickness is one of the basic physical properties used to
D5199 Test Method for Measuring the Nominal Thickness
control the quality of many geosynthetics. Thickness values
of Geosynthetics
can be required for calculation of some geosynthetics proper-
D5994 Test Method for Measuring Core Thickness of Tex-
ties such as permeability and tensile stress, among others.
tured Geomembranes
5.2 The thickness of some geosynthetics may vary consid-
erably with the applied normal load. Specific pressures and
1
This test method is under the jurisdiction of ASTM Committee D35 on
surfaces on which they are applied are indicated in this method
Geosynthetics and is the direct responsibility of Subcommittee D35.03 on Perme-
to ensure all results are comparable.
ability and Filtration.
Current edition approved Feb. 1, 2012. Published February 2012. Originally
5.3 This test method may be used for acceptance testing of
approved in 1991. Last previous edition approved in 2011 as D5199 – 11. DOI:
commercial shipments of geosynthetics for which this method
10.1520/D5199-12.
2
is applicable (see 1.1).
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
NOTE 1—The user should be aware that the compressibility of some
Standards volume information, refer to the standard’s Document Summary page on
materials, their rebound characteristics, and other phenomenon will affect
the ASTM website.
3
The last approved version of this historical standard is referenced on the thickness of some geosynthetics, following the time when they are
www.astm.org. rolled up, shipped and stored.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D5199 − 12
6. Apparatus 7.5 Number of Specimens—Unless otherwise agreed upon,
thickness measurements shall be conducted on 10 specimens
6.1 Thickness Testing Instrument —The thickness gauge
spread across the full
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D5199–11 Designation:D5199–12
Standard Test Method for
1
Measuring the Nominal Thickness of Geosynthetics
This standard is issued under the fixed designation D5199; 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.
1. Scope
1.1This test method covers the measurement of the nominal thickness of geotextiles, smooth surfaced geomembranes, geonets,
and geocomposite drainage products.
1.1 This test method covers the measurement of the nominal thickness of geosynthetics, except textured and some structured
geomembranes where the entire surface of the presser foot cannot come into complete contact with the geosynthetic surface.
1.2 This test method does not provide thickness values for geosynthetics under variable normal compressive stresses. This test
method determines nominal thickness, not necessarily minimum thickness.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D123 Terminology Relating to Textiles D1776
D1776 Practice for Conditioning and Testing Textiles
D2905 Practice for Statements on Number of Specimens for Textiles
D4354 Practice for Sampling of Geosynthetics for Testing
D4439 Terminology for Geosynthetics
D5199 Test Method for Measuring the Nominal Thickness of Geosynthetics
D5994 Test Method for Measuring Core Thickness of Textured Geomembranes
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
3. Terminology
3.1 For definitions of other terms relating to geotextiles and geomembranes used in this standard, refer to Terminology D4439.
For definition of other textile terms used in this standard, refer to Terminology D123.
3.2 Definitions:
3.2.1 pressure, n—the force or load per unit area.
3.2.2 thickness—(1) the distance between one planar surface and its opposite parallel and planar surface; (2) in the textiles the
distance between the upper and lower surfaces of the material, measured under a specified pressure and time.
3.2.3 structured geomembrane, n—geomembrane consisting of a flat core and protrusions on one or both sides 3.1.3 For
definitions of other terms relating to geotextiles and geomembranes used in this standard, refer to Terminology D4439.
4. Summary of Test Method
4.1The nominal thicknesses of geosynthetics is determined by observing the perpendicular distance that a movable plane is
displacedfromaparallelsurfacebythegeotextileor geomembrane material while under a specified pressure (2 kPaforgeotextiles
and 20 kPa for geomembranes for 5 s).
4.1 The nominal thickness of geosynthetics is determined by observing the distance between two parallel surfaces confining the
tested material while under a specified pressure, after 5 seconds.
1
This test method is under the jurisdiction of ASTM Committee D35 on Geosynthetics and is the direct responsibility of Subcommittee D35.03 on Permeability and
Filtration.
Current edition approved Feb. 1, 2011.2012. Published March 2011.February 2012. Originally approved in 1991. Last previous edition approved in 20062011 as
D5199–01(2006). DOI: 10.1520/D5199-11. – 11. DOI: 10.1520/D5199-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D5199–12
5. Significance and Use
5.1Thickness is one of the basic physical properties used to control the quality of many geosynthetics. Thickness values are
required in calculation of some geotextile and geomembrane parameters such as permeability coefficients, tensile stress (index),
and the like thickness is not indicative of field performance and therefore is not recommended for specifications.
5.2The thickness of geotextiles and
...
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