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ASTM D5971-07

(Practice)

Standard Practice for Sampling Freshly Mixed Controlled Low-Strength Material

Standard Practice for Sampling Freshly Mixed Controlled Low-Strength Material

SCOPE
1.1 This practice explains the procedure for obtaining a representative sample of freshly mixed controlled low-strength material (CLSM) as delivered to the project site on which tests are to be performed to determine compliance with quality requirements of the specifications under which the CLSM is furnished (Note 1). This practice includes sampling from revolving-drum truck mixers and from agitating equipment used to transport central-mixed CLSM. This Practice is based on Practice C 172 for concrete.
1.2 The values stated in SI units are to be regarded as the standard. The inch-pound equivalents are shown for information only.Composite samples are required by this practice unless specifically excepted by procedures governing the tests to be performed, such as tests to determine uniformity of consistency and mixer efficiency. Procedures used to select the specific test batches are not described in this practice. It is recommended that random sampling be used to determine overall specification compliance.
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. (Warning: Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.)
1.3 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction with professional judgement. Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a projects many unique aspects. The word "standard" in the title of this document means only that the document has been approved through the ASTM consensus process.

General Information

Status
Historical
Publication Date
31-Oct-2007
ICS
19.020 - Test conditions and procedures in general
Technical Committee
D18 - Soil and Rock
Drafting Committee
D18.15 - Stabilization With Admixtures
Current Stage
Ref Project

Relations

Replaces
ASTM D5971-01 - Standard Practice for Sampling Freshly Mixed Controlled Low-Strength Material
Effective Date
01-Nov-2007
Replaced By
ASTM D5971/D5971M-13 - Standard Practice for Sampling Freshly Mixed Controlled Low-Strength Material
Effective Date
01-Aug-2013
Referred By
ASTM E3355-23 - Standard Guide for Characterization of Coal Combustion Products (CCPs) in Storage Area(s) for Beneficial Use
Effective Date
01-Nov-2007

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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
Designation: D5971 − 07
StandardPractice for
1
Sampling Freshly Mixed Controlled Low-Strength Material
This standard is issued under the fixed designation D5971; 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* dard” in the title of this document means only that the
document has been approved through the ASTM consensus
1.1 This practice explains the procedure for obtaining a
process.
representative sample of freshly mixed controlled low-strength
material (CLSM) as delivered to the project site on which tests
2. Referenced Documents
are to be performed to determine compliance with quality
3
2.1 ASTM Standards:
requirements of the specifications under which the CLSM is
C172 Practice for Sampling Freshly Mixed Concrete
furnished (Note 1). This practice includes sampling from
D653 Terminology Relating to Soil, Rock, and Contained
revolving-drum truck mixers and from agitating equipment
Fluids
used to transport central-mixed CLSM. This Practice is based
D3740 Practice for Minimum Requirements for Agencies
on Practice C172 for concrete.
Engaged in Testing and/or Inspection of Soil and Rock as
1.2 The values stated in SI units are to be regarded as the
Used in Engineering Design and Construction
standard. The inch-pound equivalents are shown for informa-
D4832 Test Method for Preparation and Testing of Con-
tion only.
trolled Low Strength Material (CLSM) Test Cylinders
D6023 Test Method for Density (Unit Weight), Yield, Ce-
NOTE 1—Composite samples are required by this practice unless
specifically excepted by procedures governing the tests to be performed, ment Content, and Air Content (Gravimetric) of Con-
such as tests to determine uniformity of consistency and mixer efficiency.
trolled Low-Strength Material (CLSM)
Procedures used to select the specific test batches are not described in this
D6103 Test Method for Flow Consistency of Controlled
practice. It is recommended that random sampling be used to determine
Low Strength Material (CLSM)
overall specification compliance.
1.3 This standard does not purport to address all of the
3. Terminology
safety concerns, if any, associated with its use. It is the
3.1 Definitions—For common definitions of terms in this
responsibility of the user of this standard to establish appro-
standard, refer to Terminology D653.
priate safety and health practices and determine the applica-
3.2 Definitions of Terms Specific to This Standard:
bility of regulatory limitations prior to use. (Warning—Fresh
3.2.1 composite sample, n—a sample that is constructed by
hydraulic cementitious mixtures are caustic and may cause
2
combiningequalportionsofgrabsamplestakenattwoormore
chemical burns to skin and tissue upon prolonged exposure. )
regularly spaced intervals during discharge of the middle
1.4 This practice offers a set of instructions for performing
portion of the batch of CLSM.
one or more specific operations. This document cannot replace
education or experience and should be used in conjunction
3.2.2 controlled low-strength material (CLSM), n—a mix-
with professional judgement. Not all aspects of this practice
ture of Portland cement, fly ash, aggregates, water, and
may be applicable in all circumstances. This ASTM standard is possibly chemical admixtures that, as the cement hydrates,
not intended to represent or replace the standard of care by
forms a soil replacement material. The CLSM is a self
which the adequacy of a given professional service must be compacting, flowable, cementitious material that is primarily
judged, nor should this document be applied without consid-
used as a backfill or structural fill instead of compacted fill or
eration of a projects many unique aspects. The word “stan-
unsuitable native soil. Depending on the amount of water used
in the CLSM mixture, it can be placed as a non-flowable
compacted material or as a mortar.
1
This practice is under the jurisdiction of ASTM Committee D18 on Soil and 3.2.3 flow consistency, n—measured by the average diam-
Rock and is the direct responsibility of Subcommittee D18.15 on Stabilization With
eter of the spread achieved by removal of the flow cylinder.
Admixtures.
Current edition approved Nov. 1, 2007. Published December 2007. Originally
3
approved in 1995. Last previous edition approved in 2001 as D5971 – 01. DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/D5971-07. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
2
Section on Safety Precautions, Manual of Aggregate and Concrete Testing, Standards volume information, refer to the standard’s Document Summa
...

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:D5971–01 Designation:D5971–07
Standard Practice for
1
Sampling Freshly Mixed Controlled Low-Strength Material
This standard is issued under the fixed designation D 5971; 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*
1.1This practice explains the procedure for obtaining a representative sample to test of freshly mixed controlled lowstrength
material (CLSM) as delivered to the project site (
1.1 This practice explains the procedure for obtaining a representative sample of freshly mixed controlled low-strength material
(CLSM) as delivered to the project site on which tests are to be performed to determine compliance with quality requirements of
the specifications under which the CLSM is furnished (Note 1).This practice includes sampling from revolving-drum truck mixers
andfromagitatingequipmentusedtotransportcentral-mixedCLSM.).Thispracticeincludessamplingfromrevolving-drumtruck
mixers and from agitating equipment used to transport central-mixed CLSM.This Practice is based on Practice C 172 for concrete.
1.2 The values stated in SI units are to be regarded as the standard.The inch-pound equivalents are shown for information only.
NOTE 1—Composite samples are required by this practice unless specifically excepted by procedures governing the tests to be performed, such as tests
to determine uniformity of consistency and mixer efficiency. Procedures used to select the specific test batches are not described in this practice. Itis
recommended that random sampling be used to determine overall specification compliance.
1.3This 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.
1.3 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. (Warning: Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and
2
tissue upon prolonged exposure. )
1.4 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace
education or experience and should be used in conjunction with professional judgement. Not all aspects of this practice may be
applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the
adequacy of a given professional service must be judged, nor should this document be applied without consideration of a projects
many unique aspects. The word “standard” in the title of this document means only that the document has been approved through
the ASTM consensus process.
2. Referenced Documents
3
2.1 ASTM Standards:
C 172 Practice for Sampling Freshly Mixed Concrete
D 653 Terminology Relating to Soil, Rock, and Contained Fluids
D 3740 Practice for Minimum Requirements forAgencies Engaged in the Testing and/or Inspection of Soil and Rock as Used
in Engineering Design and Construction
D 4832 Test Method for Preparation and Testing of Controlled Low Strength Material (CLSM) Test Cylinders
D 6023 Test Method for Unit Weight, Yield, Cement Content, and Air Content (Gravimetric) of Controlled Low Strength
Material (CLSM)
D 6103 Test Method for Flow Consistency of Controlled Low Strength Material (CLSM)
1
This practice is under the jurisdiction of ASTM Committee D18 on Soil and Rock and is the direct responsibility of Subcommittee D18.15 on Stabilization withWith
Admixtures.
Current edition approved Nov. 10, 2001.1, 2007. Published February 2002.December 2007. Originally published as PS30–95.approved in 1995. Last previous edition
D5971–96.approved in 2001 as D 5971 – 01.
2
Annual Book of ASTM Standards, Vol 04.08.
2
Section on Safety Precautions, Manual of Aggregate and Concrete Testing , Annual Book of ASTM Standards, Vol. 04.02.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 04.09.volume information, refer to the stand
...

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4.1 This practice shall be used to provide a representative sample of the material for the purpose of testing various properties. The procedures used in sampling shall include the use of every precaution that will assist in obtaining samples that are truly representative of the nature and condition of the CLSM.
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1.1 This practice explains the procedure for obtaining a representative sample of freshly mixed controlled low-strength material (CLSM) as delivered to the project site on which tests are to be performed to determine compliance with quality requirements of the specifications under which the CLSM is furnished (Note 1). This practice includes sampling from revolving-drum truck mixers and from agitating equipment used to transport central-mixed CLSM. This Practice is based on Practice C172 for concrete.  
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1.3 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. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.2)  
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4.1 This guide identifies test methods used in the process of determining the characteristics of fabrics used to form fine aggregate concrete for properties such as mass, apparent opening size, tensile strength, water permeability and other mechanical properties.  
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FIG. 1 Sequence of Steps  
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1.1 This practice covers the use of standard regression techniques and data from an interlaboratory study to determine a lower quantitative limit for a test method. This determined lower limit represents the numerical limit at or above which the test results are considered to be quantitatively meaningful for commerce or regulatory activities by this practice. It is defined by this standard as the pooled limit of quantitation (PLOQ) for the test method.  
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Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

ABSTRACT
This practice describes the techniques for planning, conducting, analyzing, and treating the results of an interlaboratory study (ILS) of a test method. The statistical techniques described in this practice provide adequate information for formulating the precision statement of a test method. This practice is also concerned exclusively with test methods which yield a single numerical figure as the test result, although the single figure may be the outcome of a calculation from a set of measurements. ASTM regulations require precision statements in all test methods in terms of repeatability and reproducibility and knowledge of the test method precision is useful in commerce and in technical work when comparing test results against standard values or between data sources.
SIGNIFICANCE AND USE
4.1 ASTM regulations require precision statements in all test methods in terms of repeatability and reproducibility. This practice may be used in obtaining the needed information as simply as possible. This information may then be used to prepare a precision statement in accordance with Practice E177. Knowledge of the test method precision is useful in commerce and in technical work when comparing test results against standard values (such as specification limits) or between data sources (different laboratories, instruments, etc.).  
4.1.1 When a test method is applied to a large number of portions of a material that are as nearly alike as possible, the test results obtained will not all have the same value. A measure of the degree of agreement among these test results describes the precision of the test method for that material. Numerical measures of the variability between such test results provide inverse measures of the precision of the test method. Greater variability implies smaller (that is, poorer) precision and larger imprecision.  
4.1.2 Precision is reported as a standard deviation, coefficient of variation (relative standard deviation), variance, or a precision limit (a data range indicating no statistically significant difference between test results).  
4.1.3 This practice is designed only to estimate the precision of a test method. However, when accepted reference values are available for the property levels, the test result data obtained according to this practice may be used in estimating the bias of the test method. For a discussion of bias estimation and the relationships between precision, bias, and accuracy, see Practice E177.  
4.2 The procedures presented in this practice consist of three basic steps: planning the interlaboratory study, guiding the testing phase of the study, and analyzing the test result data.  
4.2.1 The planning phase includes forming the ILS task group, the study design, selection, and number of participating laborato...
SCOPE
1.1 This practice describes the techniques for planning, conducting, analyzing, and treating the results of an interlaboratory study (ILS) of a test method. The statistical techniques described in this practice provide adequate information for formulating the precision statement of a test method.  
1.2 This practice does not concern itself with the development of test methods but rather with gathering the information needed for a test method precision statement after the development stage has been successfully completed. The data obtained in the interlaboratory study may indicate, however, that further effort is needed to improve the test method.  
1.3 Since the primary purpose of this practice is the development of the information needed for a precision statement, the experimental design in this practice may not be optimum for evaluating materials, apparatus, or individual laboratories.  
1.4 Field of Application—This practice is concerned exclusively with test methods which yield a single numerical figure as the test result, although the single figure may be the outcome of a calculation from a set of measurements.  
1.4.1 This practice ...

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ASTM
ASTM D6646-03(2022)(Test Method)
Standard Test Method for Determination of the Accelerated Hydrogen Sulfide Breakthrough Capacity of Granular and Pelletized Activated Carbon

SIGNIFICANCE AND USE
5.1 This method compares the performance of granular or pelletized activated carbons used in odor control applications, such as sewage treatment plants, pump stations, etc. The method determines the relative breakthrough performance of activated carbon for removing hydrogen sulfide from a humidified gas stream. Other organic contaminants present in field operations may affect the H2S breakthrough capacity of the carbon; these are not addressed by this test. This test does not simulate actual conditions encountered in an odor control application, and is therefore meant only to compare the hydrogen sulfide breakthrough capacities of different carbons under the conditions of the laboratory test.  
5.2 This test does not duplicate conditions that an adsorber would encounter in practical service. The mass transfer zone in the 23 cm column used in this test is proportionally much larger than that in the typical bed used in industrial applications. This difference favors a carbon that functions more rapidly for removal of H2S over a carbon with slower kinetics. Also, the 1 % H2S challenge gas concentration used here engenders a significant temperature rise in the carbon bed. This effect may also differentiate between carbons in a way that is not reflected in the conditions of practical service.  
5.3 This standard as written is applicable only to granular and pelletized activated carbons with mean particle diameters less than 2.5 mm. Application of this standard to activated carbons with mean particle diameters (MPD) greater than 2.5 mm will require a larger diameter adsorption column. The ratio of column inside diameter to MPD should be greater than 10 in order to avoid wall effects. In these cases it is suggested that bed superficial velocity and contact time be held invariant at the conditions specified in this standard (4.77 cm/s and 4.8 s). Although not covered by this standard, data obtained from these tests may be reported as in paragraph 12 along with additional ...
SCOPE
1.1 This test method is intended to evaluate the performance of virgin, newly impregnated or in-service, granular or pelletized activated carbon for the removal of hydrogen sulfide from an air stream, under the laboratory test conditions described herein. A humidified air stream containing 1 % (by volume) hydrogen sulfide is passed through a carbon bed until 50 ppm breakthrough of H2S is observed. The H2S adsorption capacity of the carbon per unit volume at 99.5 % removal efficiency (g H2S/cm3 carbon) is then calculated. This test is not necessarily applicable to non-carbon adsorptive materials.  
1.2 This standard as written is applicable only to granular and pelletized activated carbons with mean particle diameters (MPD) less than 2.5 mm. See paragraph 5.3 if activated carbons with larger MPDs are to be tested.  
1.3 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.  
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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