ASTM D6525/D6525M-14
(Test Method)Standard Test Method for Measuring Nominal Thickness of Rolled Erosion Control Products
Standard Test Method for Measuring Nominal Thickness of Rolled Erosion Control Products
SIGNIFICANCE AND USE
5.1 Thickness is one of the basic physical properties used to control the quality of permanent rolled erosion control products. Thickness values may aid in the calculation of other permanent rolled erosion control product parameters. Thickness however is not generally an indication of field performance and generally should not be used in specifications. This test method is developed to aid manufacturers, designers, and end users in comparing the thickness of permanent rolled erosion control products through the use of an accepted ASTM standard.
5.2 The thickness of permanent rolled erosion control products may vary considerably depending on the pressure applied to the specimen during measurement. Where observed changes occur, thickness decreases when applied pressure is increased. To minimize variation, specific sample size and applied pressure are indicated in this test method to ensure all results are comparable.
5.3 This test method may be used for acceptance testing of commercial shipments of permanent rolled erosion control products, but caution is advised since information on between-laboratory precision is incomplete. Comparative tests in accordance with 5.3.1 may be advised.
5.3.1 In case of a dispute arising from differences in reported test results when using this test method for acceptance testing of commercial shipments, the purchaser and the supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens that are as homogeneous as possible and that are formed from a lot of material of the type in question. The test specimens should be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using Students t-test for unpaired data and an acceptable probability level chosen by th...
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1.1 This test method covers the measurement of the nominal thickness of permanent rolled erosion control products.
1.2 This test method does not provide thickness values for permanent rolled erosion control products under variable compressive stresses. This test method determines nominal thickness, not necessarily minimum thickness.
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.
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Designation: D6525/D6525M − 14
StandardTest Method for
Measuring Nominal Thickness of Rolled Erosion Control
1
Products
This standard is issued under the fixed designation D6525/D6525M; 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 3.1.2 thickness—(1)thedistancebetweenoneplanarsurface
and its opposite parallel and planar surface; (2) in permanent
1.1 Thistestmethodcoversthemeasurementofthenominal
rolled erosion control products, the distance between the upper
thickness of permanent rolled erosion control products.
and lower surfaces of the material, measured under a specified
1.2 This test method does not provide thickness values for
pressure and time.
permanent rolled erosion control products under variable
compressive stresses. This test method determines nominal
4. Summary of Test Method
thickness, not necessarily minimum thickness.
4.1 The nominal thickness of permanent rolled erosion
1.3 The values stated in either SI units or inch-pound units
control products is determined by observing the perpendicular
are to be regarded separately as standard. The values stated in
distance that a movable plane is displaced from a parallel
each system may not be exact equivalents; therefore, each
surface by the permanent rolled erosion control product while
system shall be used independently of the other. Combining
under a specified pressure of 0.2 kPa [0.029 psi] for 5 s.
values from the two systems may result in non-conformance
5. Significance and Use
with the standard.
1.4 This standard does not purport to address all of the 5.1 Thickness is one of the basic physical properties used to
safety concerns, if any, associated with its use. It is the
control the quality of permanent rolled erosion control prod-
responsibility of the user of this standard to establish appro- ucts. Thickness values may aid in the calculation of other
priate safety and health practices and determine the applica-
permanent rolled erosion control product parameters. Thick-
bility of regulatory limitations prior to use. ness however is not generally an indication of field perfor-
mance and generally should not be used in specifications. This
2. Referenced Documents
test method is developed to aid manufacturers, designers, and
2
2.1 ASTM Standards:
end users in comparing the thickness of permanent rolled
D4354 Practice for Sampling of Geosynthetics and Rolled
erosion control products through the use of an acceptedASTM
Erosion Control Products(RECPs) for Testing
standard.
D5199 Test Method for Measuring the Nominal Thickness
5.2 The thickness of permanent rolled erosion control prod-
of Geosynthetics
ucts may vary considerably depending on the pressure applied
E177 Practice for Use of the Terms Precision and Bias in
to the specimen during measurement.Where observed changes
ASTM Test Methods
occur, thickness decreases when applied pressure is increased.
E691 Practice for Conducting an Interlaboratory Study to
To minimize variation, specific sample size and applied pres-
Determine the Precision of a Test Method
sure are indicated in this test method to ensure all results are
3. Terminology
comparable.
3.1 Definitions: 5.3 This test method may be used for acceptance testing of
3.1.1 pressure, n—the force or load per unit area.
commercial shipments of permanent rolled erosion control
products, but caution is advised since information on between-
1
This test method is under the jurisdiction of ASTM Committee D35 on
laboratory precision is incomplete. Comparative tests in accor-
Geosynthetics and is the direct responsibility of Subcommittee D35.05 on Geosyn-
dance with 5.3.1 may be advised.
thetic Erosion Control.
5.3.1 In case of a dispute arising from differences in
Current edition approved Aug. 1, 2014. Published September 2014. Originally
reported test results when using this test method for acceptance
approved in 2000. Last previous edition approved in 2012 as D6525 – 12. DOI:
10.1520/D6525_D6525M-14.
testing of commercial shipments, the purchaser and the sup-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
plier should conduct comparative tests to determine if there is
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
a statistical bias between their laboratories. Competent statis-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. tical assistance is recommended for the investigation of bias.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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This document is not an ASTM standard and is intended only to provide the user of an ASTM 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: D6525 − 12 D6525/D6525M − 14
Standard Test Method for
Measuring Nominal Thickness of Rolled Erosion Control
1
Products
This standard is issued under the fixed designation D6525;D6525/D6525M; 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
1.1 This test method covers the measurement of the nominal thickness of permanent rolled erosion control products.
1.2 This test method does not provide thickness values for permanent rolled erosion control products under variable
compressive stresses. This test method determines nominal thickness, not necessarily minimum thickness.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values given in
parentheses are for information only. 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D4354 Practice for Sampling of Geosynthetics and Rolled Erosion Control Products(RECPs) for Testing
D5199 Test Method for Measuring the Nominal Thickness of Geosynthetics
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
3. Terminology
3.1 Definitions:
3.1.1 pressure, n—the force or load per unit area.
3.1.2 thickness—(1) the distance between one planar surface and its opposite parallel and planar surface; (2) in permanent rolled
erosion control products, the distance between the upper and lower surfaces of the material, measured under a specified pressure
and time.
4. Summary of Test Method
4.1 The nominal thickness of permanent rolled erosion control products is determined by observing the perpendicular distance
that a movable plane is displaced from a parallel surface by the permanent rolled erosion control product while under a specified
pressure of 0.2 kPa (0.029 psi)[0.029 psi] for 5 s.
5. Significance and Use
5.1 Thickness is one of the basic physical properties used to control the quality of permanent rolled erosion control products.
Thickness values may aid in the calculation of other permanent rolled erosion control product parameters. Thickness however is
1
This test method is under the jurisdiction of ASTM Committee D35 on Geosynthetics and is the direct responsibility of Subcommittee D35.05 on Geosynthetic Erosion
Control.
Current edition approved July 1, 2012Aug. 1, 2014. Published September 2012September 2014. Originally approved in 2000. Last previous edition approved in 20062012
as D6525 – 00D6525 – 12.R06. DOI: 10.1520/D6525-12.10.1520/D6525_D6525M-14.
2
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 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 ----------------------
D6525/D6525M − 14
not generally an indication of field performance and generally should not be used in specifications. This test method is developed
to aid manufacturers, designers, and end users in comparing the thickness of permanent rolled erosion control products through
the use of an accepted ASTM standard.
5.2 The thickness of permanent rolled erosion control products may vary considerably depending on the pressure applied to the
specimen during measurement. Where observed changes occur, thickness decreases when applied pressure is increased. To
minimize variation, specific sample size and applied pressure are indicated in this test method to ensure all results are comparable.
5.3 This test method may be used for acceptance testing of commercial shipments of permanent rolled erosion control products,
but caution is advised since information on between-labor
...
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