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ASTM D7101-13e1

(Test Method)

Standard Index Test Method for Determination of Unvegetated Rolled Erosion Control Product (RECP) Ability to Protect Soil from Rain Splash and Associated Runoff Under Bench-Scale Conditions (Withdrawn 2022)

Standard Index Test Method for Determination of Unvegetated Rolled Erosion Control Product (RECP) Ability to Protect Soil from Rain Splash and Associated Runoff Under Bench-Scale Conditions (Withdrawn 2022)

SIGNIFICANCE AND USE
5.1 This index test method indicates a unvegetated RECP’s ability to reduce rainsplash-induced erosion under bench-scale conditions. This test method may also assist in identifying physical attributes of RECPs that contribute to their erosion-control performance.  
5.2 This test method is bench-scale and therefore, appropriate as an index test for initial indication of product performance, for general comparison of unvegetated RECP capabilities, and for product quality assurance/conformance testing. The results of this test are not indicative of an RECP’s actual field performance.
Note 2: The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspections/etc. Users of this standard are cautioned that compliance with Practice D3740 does not itself assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors.
SCOPE
1.1 This index test method establishes the guidelines, requirements and procedures for evaluating the ability of unvegetated rolled erosion control products (RECPs) to protect soils from simulated rainfall (rain splash) and minimal runoff induced erosion. The critical element of this protection is the ability of the unvegetated RECP to absorb the impact force of raindrops, thereby reducing soil particle loosening through “splash” mechanisms, and limiting the ability of runoff to carry the loosened soil particles.  
1.2 This index test method utilizes bench-scale testing procedures and is not indicative of unvegetated RECP performance in conditions typically found in the field.
Note 1: The values obtained with this bench scale procedure are for initial performance indication, general product comparison and conformance purposes only. These values should not be used in estimating RECP soil protection in actual field use with such calculations as the Universal Soil Loss Equation (USLE) or Revised Universal Soil Loss Equation (RUSLE) without verification from qualified, large-scale tests.  
1.3 This index test is not intended to replace full-scale simulation or field testing in acquisition of performance values that are required in the design of erosion control measures utilizing unvegetated RECPs.  
1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
1.5 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026, unless superseded by this standard.  
1.5.1 The procedures used to specify how data are collected/recorded or calculated in this standard are regarded as the industry standard. In addition, they are representative of the significant digits that generally should be retained. The procedures used do not consider material variation, purpose for obtaining the data, special purpose studies, or any considerations for the user’s objectives, and it is common practice to increase or reduce significant digits of reported data to be commensurate with these considerations. It is beyond the scope of this index test method to consider significant digits used in analytical methods for engineering design.  
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use and may involve use of hazardous materials, equipment, and operations. 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. Also, the user must comply with prevalent regulatory codes, such as OSHA (Occupational Health and Safety Administrat...

General Information

Status
Withdrawn
Publication Date
14-Jun-2013
Withdrawal Date
12-Jan-2022
ICS
13.080.01 - Soil quality and pedology in general
Technical Committee
D18 - Soil and Rock
Drafting Committee
D18.25 - Erosion and Sediment Control Technology
Current Stage
Ref Project

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ASTM D7101-13e1 - Standard Index Test Method for Determination of Unvegetated Rolled Erosion Control Product (RECP) Ability to Protect Soil from Rain Splash and Associated Runoff Under Bench-Scale Conditions (Withdrawn 2022)ASTM D7101-13e1 - Standard Index Test Method for Determination of Unvegetated Rolled Erosion Control Product (RECP) Ability to Protect Soil from Rain Splash and Associated Runoff Under Bench-Scale Conditions (Withdrawn 2022)
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ASTM D7101-13e1 - Standard Index Test Method for Determination of Unvegetated Rolled Erosion Control Product (RECP) Ability to Protect Soil from Rain Splash and Associated Runoff Under Bench-Scale Conditions (Withdrawn 2022)
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
´1
Designation: D7101 − 13
Standard Index Test Method for
Determination of Unvegetated Rolled Erosion Control
Product (RECP) Ability to Protect Soil from Rain Splash and
1
Associated Runoff Under Bench-Scale Conditions
This standard is issued under the fixed designation D7101; 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
ε NOTE—Editorially updated units of measurement statement in April 2018.
1. Scope* significant digits that generally should be retained. The proce-
dures used do not consider material variation, purpose for
1.1 This index test method establishes the guidelines, re-
obtaining the data, special purpose studies, or any consider-
quirements and procedures for evaluating the ability of unveg-
ations for the user’s objectives, and it is common practice to
etated rolled erosion control products (RECPs) to protect soils
increase or reduce significant digits of reported data to be
from simulated rainfall (rain splash) and minimal runoff
commensuratewiththeseconsiderations.Itisbeyondthescope
induced erosion. The critical element of this protection is the
of this index test method to consider significant digits used in
ability of the unvegetated RECP to absorb the impact force of
analytical methods for engineering design.
raindrops, thereby reducing soil particle loosening through
“splash”mechanisms,andlimitingtheabilityofrunofftocarry 1.6 This standard does not purport to address all of the
the loosened soil particles. safety concerns, if any, associated with its use and may involve
useofhazardousmaterials,equipment,andoperations.Itisthe
1.2 This index test method utilizes bench-scale testing
responsibility of the user of this standard to establish appro-
procedures and is not indicative of unvegetated RECP perfor-
priate safety and health practices and determine the applica-
mance in conditions typically found in the field.
bility of regulatory limitations prior to use. Also, the user must
NOTE 1—The values obtained with this bench scale procedure are for
comply with prevalent regulatory codes, such as OSHA (Oc-
initial performance indication, general product comparison and confor-
cupational Health and SafetyAdministration) guidelines, while
mancepurposesonly.ThesevaluesshouldnotbeusedinestimatingRECP
using the index test method.
soil protection in actual field use with such calculations as the Universal
Soil Loss Equation (USLE) or Revised Universal Soil Loss Equation
1.7 This international standard was developed in accor-
(RUSLE) without verification from qualified, large-scale tests.
dance with internationally recognized principles on standard-
1.3 This index test is not intended to replace full-scale
ization established in the Decision on Principles for the
simulation or field testing in acquisition of performance values
Development of International Standards, Guides and Recom-
that are required in the design of erosion control measures
mendations issued by the World Trade Organization Technical
utilizing unvegetated RECPs.
Barriers to Trade (TBT) Committee.
1.4 The values stated in SI units are to be regarded as
2. Referenced Documents
standard. The values given in parentheses after SI units are
2
2.1 ASTM Standards:
provided for information only and are not considered standard.
D653 Terminology Relating to Soil, Rock, and Contained
1.5 All observed and calculated values shall conform to the
Fluids
guidelines for significant digits and rounding established in
D698 Test Methods for Laboratory Compaction Character-
Practice D6026, unless superseded by this standard.
3
istics of Soil Using Standard Effort (12,400 ft-lbf/ft (600
1.5.1 Theproceduresusedtospecifyhowdataarecollected/
3
kN-m/m ))
recorded or calculated in this standard are regarded as the
D6026 Practice for Using Significant Digits in Geotechnical
industry standard. In addition, they are representative of the
Data
D3740 Practice for Minimum Requirements for Agencies
1
ThistestmethodisunderthejurisdictionofASTMCommitteeD18onSoiland
Rock and is the direct responsibility of Subcommittee D18.25 on Erosion and
2
Sediment Control Technology. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved June 15, 2013. Published July 2013. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2007. Last previous edition approved in 2008 as D7101 – 08. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D7101-13E01. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM Interna
...

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ASTM D8263/D8263M-23(Test Method)
Standard Test Method for Determining the Change in Mass of Rolled Erosion Control Products When Submerged in Water

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5.1 Rolled erosion control products are intended to protect seed beds from erosion and provide an environment that encourages seed germination. Maintaining a moist environment by gradually releasing absorbed moisture helps provide a beneficial growth environment. The ability of a product to absorb moisture is commonly specified. This test method can be used for quality control and to determine product conformance to a specification.  
5.2 Change in mass of RECPs submerged in water may be used to control the quality of many RECPs. Change in mass of RECPs submerged in water has not been proven to relate to field performance for all materials.  
5.3 The change in mass of RECPs submerged in water may vary considerably depending on the composition of the materials used in the product or due to inconsistency within the product. This test method enables the characterization and control of product consistency.  
5.4 This test method may be used to determine the effect of different component materials and makeup of RECPs on the change in mass when submerged in water.  
5.5 This test method may be used for acceptance testing of commercial shipments of RECPs. Comparative tests as directed in 5.6 may be advisable.  
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1.1 This test method measures the change in mass of a rolled erosion control product when specimens are submerged in water for a prescribed period of time. The change in mass is reported as a percentage of the original dry mass of the specimen.  
1.2 Units—The values stated in either SI units or inch-pound units [given in brackets] 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 nonconformance with the standard. Reporting of test results in units other than SI shall not be regarded as nonconformance with this standard.  
1.2.1 It is common practice in the engineering/construction profession to concurrently use pounds to represent both a unit of mass (lbm) and of force (lbf). This practice implicitly combines two separate systems of units; that is, the absolute system and the gravitational system. It is scientifically undesirable to combine the use of two separate sets of inch-pound units within a single standard. As stated, this standard includes the gravitational system of inch-pound units and does not use/present the slug unit of mass. However, the use of balances and scales recording pounds of mass (lbf) or recording density in lbm/ft3 shall not be regarded as nonconformance with this standard.  
1.3 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026, unless superseded by this test method.  
1.3.1 The procedures used to specify how data are collected/recorded and calculated in the standard are regarded as the industry standard. In addition, they are representative of the significant digits that generally should be retained. The procedures used do not consider material variation, purpose for obtaining the data, special purpose studies, or any considerations for t...

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ASTM D7262-23(Test Method)
Standard Test Methods for Estimating the Permanganate Natural Oxidant Demand of Soil and Aquifer Solids

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5.1 Test methods A and B are used to estimate the permanganate natural oxidant demand exerted by the soil or aquifer solids by determining the quantity of potassium permanganate that is consumed by naturally occurring species as a function of time. Test Method C is used to estimate the permanganate total oxidant demand exerted by soil, aquifer solids, chemical contaminants or any other reduced species by determining the quantity of potassium permanganate that is consumed by all components of the bulk aquifer as a function of time. Typically, the measurement of oxidant demand is used to screen potential sites for in situ chemical oxidation (ISCO) with permanganate (Test Methods A and C) and provide information to aid in the design of remediation systems (Test Methods B and C).  
5.2 While some oxidizable species react relatively quickly (that is, days to weeks), others react more slower (weeks to months). Consequently, the PNODt is expected to be some fraction of the PNODmax.  
5.3 For ISCO injection applications, the PNOD may overestimate the demand exerted due to mass transport related issues. For soil blending applications, the PNOD is a more accurate measure of the demand exerted due to better mass to oxidant contact.
Note 1: The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection/and so forth.
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1.1 These test methods cover the estimation of the permanganate natural oxidant demand (PNOD) through the determination of the quantity of potassium permanganate (KMnO4) that organic matter and other naturally occurring oxidizable species present in soil or aquifer solids will consume under specified conditions as a function of time. Oxidizable species may include organic constituents and oxidizable inorganic ions, such as ferrous iron and sulfides. The following test methods are included:
Test Method A—48-hour Permanganate Natural Oxidant Demand
Test Method B—Permanganate Natural Oxidant Demand Kinetics  
Test Method C—Permanganate Total Oxidant Demand  
1.2 These test methods are limited by the reagents employed to a permanganate natural oxidant demand (PNOD) of 40 g KMnO4 per kg soil or aquifer solids after a period of 48 hours (Methods A and C) or two weeks (Method B).  
1.3 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026.  
1.4 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 This standard does not purport to interpret the results of the data. It is the responsibility of the user of this standard to interpret the results obtained and to determine the applicability of these results prior to use.  
1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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ASTM D8167/D8167M-23(Test Method)
Standard Test Method for In-Place Bulk Density of Soil and Soil-Aggregate by a Low-Activity Nuclear Method (Shallow Depth)

SIGNIFICANCE AND USE
4.1 The test method described is useful as a rapid, nondestructive technique for in-place measurements of bulk density of soil and soil-aggregate. Test results may be used for the determination of dry density if the water content of the soil or soil-aggregate is determined by separate means, such as those methods described in Test Methods D2216, D4643, D4944, and D4959.  
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1.1 This test method describes the procedures for measuring in-place bulk density of soil and soil-aggregate using nuclear equipment with radioactive sources (hereafter referred to simply as “gauges.”) These gauges are distinct from those described in Test Method D6938 insofar as:  
1.1.1 These gauges do not contain a system (nuclear or otherwise) for the determination of the water content of the material under measurement.  
1.1.2 These gauges have photon yields sufficiently low as to require the inclusion of background radiation effects on the response during normal operation.
1.1.2.1 For the devices described in Test Method D6938, the contribution of gamma rays detected from the naturally-occurring radioisotopes in most soils (hereafter referred to as “background”) compared to the contribution of gamma rays used by the device to measure in-place bulk density is typically small enough to be negligible in terms of their effect on measurement accuracy. However, for these low-activity gauges, the gamma ray yield from the gauge is low enough that the background contribution from most soils compared to the contribution of gamma gays from the gauge is no longer negligible, and changes in this background can adversely affect the accuracy of the bulk density reading.
1.1.2.2 In order to compensate for potentially differing background contribution to low-activity gauge measurements at different test sites, a background reading must be taken in conjunction with gauge measurements obtained at a given test site. This background reading is utilized in the bulk density calculation performed by the gauge with the goal of minimizing these background effects on the density measurement accuracy.  
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4.1 The test method described is useful as a rapid, nondestructive technique for in-place measurements of bulk density of soil and soil-aggregate. Test results may be used for the determination of dry density if the water content of the soil or soil-aggregate is determined by separate means, such as those methods described in Test Methods D2216, D4643, D4944, and D4959.  
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1.1.1 These gauges do not contain a system (nuclear or otherwise) for the determination of the water content of the material under measurement.  
1.1.2 These gauges have photon yields sufficiently low as to require the inclusion of background radiation effects on the response during normal operation.
1.1.2.1 For the devices described in Test Method D6938, the contribution of gamma rays detected from the naturally-occurring radioisotopes in most soils (hereafter referred to as “background”) compared to the contribution of gamma rays used by the device to measure in-place bulk density is typically small enough to be negligible in terms of their effect on measurement accuracy. However, for these low-activity gauges, the gamma ray yield from the gauge is low enough that the background contribution from most soils compared to the contribution of gamma rays from the gauge is no longer negligible, and changes in this background can adversely affect the accuracy of the bulk density reading.
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5.1 The fiber length of an HECP plays a role in the ability of the HECP to effectively be mixed and applied. This standard can be used by manufacturers to evaluate their manufacturing process (quality assurance/quality control). Laboratories can also use this method for quality assurance/quality control and also conformance to criteria testing.
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1.1 Hydraulic erosion control product (HECP) fibers are manufactured and processed to specific length and width dimensions to facilitate the hydraulic application and to prevent clogging of the pump, recirculation pipes, nozzles, and tips. This test method is used to determine the length of the fibers on a percentage basis in an HECP.  
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1.3 Units—The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard. Sieve designations are shown in both the standard and alternative designations.  
1.4 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026.  
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ASTM D653-22(Terminology)
Standard Terminology Relating to Soil, Rock, and Contained Fluids

SIGNIFICANCE AND USE
3.1 Definitions in this standard are to be regarded as the correct ones for terms found in other ASTM standards of Committee D18. Certain terms may be found in more than one standard issued under the jurisdiction of this committee and many of these terms have been placed in this standard.  
3.2 Terms that are defined in some textbooks may differ slightly from those in this terminology standard. Definitions in this terminology standard are to be regarded as correct for ASTM usage.  
3.3 See Appendix X1 for References.  
3.4 Definitions marked with (ISRM) are included for the convenience of the user and were taken directly from the International Society for Rock Mechanics (see X1.3).  
3.5 A number of the definitions include symbols. The symbols appear in italics immediately after the name of the term.  
3.5.1 No significance should be placed on the order in which the symbols are presented where two or more are given for an individual term.  
3.5.2 The symbols presented are examples; therefore, other symbols are acceptable.  
3.5.3 See Appendix X2 for ISRM Symbols.  
3.6 A number of definitions indicate the units of measurements in brackets and which follow the symbol(s) if given. The applicable units are indicated by italic capital letters, as follows:
D—Dimensionless
F—Force, such as pound-force, ton-force, newton
L—Length, such as inch, foot, millimeter, and meter4
M—Mass, such as kilogram, gram
T—Time, such as second, minute  
3.6.1 Positive exponents designate multiples in the numerator. Negative exponents designate multiples in the denominator. Degrees of angle are indicated as “degrees.”  
3.6.2 Expressing the units either in SI or the inch-pound system has been purposely omitted in order to leave the choice of the system and specific unit to the engineer and the particular application, for example:
FL−2—may be expressed in pounds-force per square inch, kilopascals, tons per square foot, etc.
LT−1—may be expressed in feet per minu...
SCOPE
1.1 These definitions apply to many terms found in the Terminology section of standards of ASTM Committee D18.  
1.2 This terminology standard defines terms related to soil, rock, and contained fluids found in the various sections of standards under the jurisdiction of ASTM Committee D18.  
1.3 Definitions of terms relating to frozen soils are contained in Terminology D7099.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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1.1 This test method is used to evaluate the ability of erosion control products (ECP) to protect slopes from rainfall-induced erosion using an adjustable tilting bed slope. The standard slopes range from 2:1 to 4:1 (H:V) having a target rainfall intensity of 3.5 in./h [90 mm/h].  
1.2 There are three main elements the ECPs must have the ability to perform: 1. Absorb the impact force of raindrops, thereby reducing soil particle loosening and detachment through “splash” mechanisms; 2. Slow runoff and encourage infiltration, thereby reducing soil particle displacement and transport through “overland flow” mechanisms; and 3. Trap soil particles beneath the ECP. When comparing data from different ECPs under consideration, it is important to keep the test conditions the same for the ECPs being evaluated, for example, the rainfall intensity rate and the slope.  
1.3 The results of this test method can be used to evaluate performance and acceptability, and can be used to compare the effectiveness of different ECPs. This method provides a comparative evaluation of an ECP to baseline bare soil conditions under controlled and documented conditions. This test method can provide information about a product that is under consideration for a specific application where no performance information currently exists.  
1.4 This test method covers the use of three different soil types, ECP installation: sprayed, rolled, or dry applied, and a runoff collection procedure. This test is typically performed indoors, but may be performed outside as long as certain requirements are met. Partially enclosed facilities are acceptable providing the environmental conditions are met.  
1.5 Units—The values stated in either inch-pound units or SI 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 nonconformance with the standard. Reporting of test results in units other than inch-pound shall not be regarded as nonconformance with this standard.  
1.5.1 The gravitational system of inch-pound units is used when dealing with inch-pound units. In the system, the pound (lbf) represents a unit of force (weight), while the units for mass is slugs. The slug unit is n...

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ASTM D653-21b(Terminology)
Standard Terminology Relating to Soil, Rock, and Contained Fluids

SIGNIFICANCE AND USE
3.1 Definitions in this standard are to be regarded as the correct ones for terms found in other ASTM standards of Committee D18. Certain terms may be found in more than one standard issued under the jurisdiction of this committee and many of these terms have been placed in this standard.  
3.2 Terms that are defined in some textbooks may differ slightly from those in this terminology standard. Definitions in this terminology standard are to be regarded as correct for ASTM usage.  
3.3 See Appendix X1 for References.  
3.4 Definitions marked with (ISRM) are included for the convenience of the user and were taken directly from the International Society for Rock Mechanics (see X1.3).  
3.5 A number of the definitions include symbols. The symbols appear in italics immediately after the name of the term.  
3.5.1 No significance should be placed on the order in which the symbols are presented where two or more are given for an individual term.  
3.5.2 The symbols presented are examples; therefore, other symbols are acceptable.  
3.5.3 See Appendix X2 for ISRM Symbols.  
3.6 A number of definitions indicate the units of measurements in brackets and which follow the symbol(s) if given. The applicable units are indicated by italic capital letters, as follows:
D—Dimensionless
F—Force, such as pound-force, ton-force, newton
L—Length, such as inch, foot, millimeter, and meter4
M—Mass, such as kilogram, gram
T—Time, such as second, minute  
3.6.1 Positive exponents designate multiples in the numerator. Negative exponents designate multiples in the denominator. Degrees of angle are indicated as “degrees.”  
3.6.2 Expressing the units either in SI or the inch-pound system has been purposely omitted in order to leave the choice of the system and specific unit to the engineer and the particular application, for example:
FL−2—may be expressed in pounds-force per square inch, kilopascals, tons per square foot, etc.
LT−1—may be expressed in feet per minu...
SCOPE
1.1 These definitions apply to many terms found in the Terminology section of standards of ASTM Committee D18.  
1.2 This terminology standard defines terms related to soil, rock, and contained fluids found in the various sections of standards under the jurisdiction of ASTM Committee D18.  
1.3 Definitions of terms relating to frozen soils are contained in Terminology D7099.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM D653-21a(Terminology)
Standard Terminology Relating to Soil, Rock, and Contained Fluids

SIGNIFICANCE AND USE
3.1 Definitions in this standard are to be regarded as the correct ones for terms found in other ASTM standards of Committee D18. Certain terms may be found in more than one standard issued under the jurisdiction of this committee and many of these terms have been placed in this standard.  
3.2 Terms that are defined in some textbooks may differ slightly from those in this terminology standard. Definitions in this terminology standard are to be regarded as correct for ASTM usage.  
3.3 See Appendix X1 for References.  
3.4 Definitions marked with (ISRM) are included for the convenience of the user and were taken directly from the International Society for Rock Mechanics (see X1.3).  
3.5 A number of the definitions include symbols. The symbols appear in italics immediately after the name of the term.  
3.5.1 No significance should be placed on the order in which the symbols are presented where two or more are given for an individual term.  
3.5.2 The symbols presented are examples; therefore, other symbols are acceptable.  
3.5.3 See Appendix X2 for ISRM Symbols.  
3.6 A number of definitions indicate the units of measurements in brackets and which follow the symbol(s) if given. The applicable units are indicated by italic capital letters, as follows:
D—Dimensionless
F—Force, such as pound-force, ton-force, newton
L—Length, such as inch, foot, millimeter, and meter4
M—Mass, such as kilogram, gram
T—Time, such as second, minute  
3.6.1 Positive exponents designate multiples in the numerator. Negative exponents designate multiples in the denominator. Degrees of angle are indicated as “degrees.”  
3.6.2 Expressing the units either in SI or the inch-pound system has been purposely omitted in order to leave the choice of the system and specific unit to the engineer and the particular application, for example:
FL−2—may be expressed in pounds-force per square inch, kilopascals, tons per square foot, etc.
LT−1—may be expressed in feet per minu...
SCOPE
1.1 These definitions apply to many terms found in the Terminology section of standards of ASTM Committee D18.  
1.2 This terminology standard defines terms related to soil, rock, and contained fluids found in the various sections of standards under the jurisdiction of ASTM Committee D18.  
1.3 Definitions of terms relating to frozen soils are contained in Terminology D7099.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM D653-21(Terminology)
Standard Terminology Relating to Soil, Rock, and Contained Fluids

SIGNIFICANCE AND USE
3.1 Definitions in this standard are to be regarded as the correct ones for terms found in other ASTM standards of Committee D18. Certain terms may be found in more than one standard issued under the jurisdiction of this committee and many of these terms have been placed in this standard.  
3.2 Terms that are defined in some textbooks may differ slightly from those in this terminology standard. Definitions in this terminology standard are to be regarded as correct for ASTM usage.  
3.3 See Appendix X1 for References.  
3.4 Definitions marked with (ISRM) are included for the convenience of the user and were taken directly from the International Society for Rock Mechanics (see X1.3).  
3.5 A number of the definitions include symbols. The symbols appear in italics immediately after the name of the term.  
3.5.1 No significance should be placed on the order in which the symbols are presented where two or more are given for an individual term.  
3.5.2 The symbols presented are examples; therefore, other symbols are acceptable.  
3.5.3 See Appendix X2 for ISRM Symbols.  
3.6 A number of definitions indicate the units of measurements in brackets and which follow the symbol(s) if given. The applicable units are indicated by italic capital letters, as follows:
D—Dimensionless
F—Force, such as pound-force, ton-force, newton
L—Length, such as inch, foot, millimeter, and meter4
M—Mass, such as kilogram, gram
T—Time, such as second, minute  
3.6.1 Positive exponents designate multiples in the numerator. Negative exponents designate multiples in the denominator. Degrees of angle are indicated as “degrees.”  
3.6.2 Expressing the units either in SI or the inch-pound system has been purposely omitted in order to leave the choice of the system and specific unit to the engineer and the particular application, for example:
FL−2—may be expressed in pounds-force per square inch, kilopascals, tons per square foot, etc.
LT−1—may be expressed in feet per minu...
SCOPE
1.1 These definitions apply to many terms found in the Terminology section of standards of ASTM Committee D18.  
1.2 This terminology standard defines terms related to soil, rock, and contained fluids found in the various sections of standards under the jurisdiction of ASTM Committee D18.  
1.3 Definitions of terms relating to frozen soils are contained in Terminology D7099.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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