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ASTM D6454/D6454M-99(2021)

(Test Method)

Standard Test Method for Determining the Short-Term Compression Behavior of Turf Reinforcement Mats (TRMs)

Standard Test Method for Determining the Short-Term Compression Behavior of Turf Reinforcement Mats (TRMs)

SIGNIFICANCE AND USE
5.1 The compression behavior test for TRMs is intended to be an index test. It is anticipated that the results of the compression behavior test will be used to evaluate product. The results of the analyses also may be used to compare the relative compressive yield points of materials that exhibit a detectable compressive yield point. It is anticipated that this test will be used for quality control testing to evaluate uniformity and consistency within a lot or between lots where sample geometry factors, for example, thickness, or materials may have changed.
Note 1: This is a one-dimensional test for compressive loading of a TRM in one plane.  
5.1.1 The compressive yield point of TRMs may be evaluated from the stress/strain relationship. Many materials exhibit compressive deformation but may not show a distinct compressive yield point.  
5.2 This test method can be used to evaluate the short-term stress/strain behavior of TRMs under compressive stress while loaded at a constant rate of deformation.  
5.3 This test method may be used for acceptance testing of commercial shipments of TRMs but caution is advised because interlaboratory testing is incomplete.  
5.3.1 In the 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 statistical bias between their laboratories. Competent statistical assistance is recommended for the investigations of bias. As a minimum, two parties should take a group of test specimens from material shipped to project. The test specimens then should be assigned randomly in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using the Student's t-test for unpaired data and an acceptable probability level chosen by the two parties before the testing is begun. If bias is found, either its cause must be foun...
SCOPE
1.1 This test method establishes the procedures for evaluation of the deformations of a turf reinforcement mat (TRM) under short-term compressive loading. This test method is strictly an index test method to be used to verify the compressive strength consistency of a given manufactured geosynthetic. Results from this test method should not be considered as an indication of actual or long-term performance of the TRM in field applications.  
1.2 Since these TRMs experience multidirectional compressive loadings in the field, this test method will not show actual field performance and should not be used for this specific objective. The evaluation of the results also should recognize that the determination of the short-term single plane compressive behavior of geosynthetics does not reflect the installed performance of TRMs and, therefore, should not be used as the only method of product or performance specification.  
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 are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 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.

General Information

Status
Published
Publication Date
31-Aug-2021
ICS
65.020.20 - Plant growing
Technical Committee
D35 - Geosynthetics
Drafting Committee
D35.05 - Geosynthetic Erosion Control
Current Stage
Ref Project

Relations

Refers
ASTM D4354-12(2020) - Standard Practice for Sampling of Geosynthetics and Rolled Erosion Control Products (RECPs) for Testing
Effective Date
01-May-2020

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ASTM D6454/D6454M-99(2021) - Standard Test Method for Determining the Short-Term Compression Behavior of Turf Reinforcement Mats (TRMs)ASTM D6454/D6454M-99(2021) - Standard Test Method for Determining the Short-Term Compression Behavior of Turf Reinforcement Mats (TRMs)
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ASTM D6454/D6454M-99(2021) - Standard Test Method for Determining the Short-Term Compression Behavior of Turf Reinforcement Mats (TRMs)
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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.
Designation: D6454/D6454M − 99 (Reapproved 2021)
Standard Test Method for
Determining the Short-Term Compression Behavior of Turf
1
Reinforcement Mats (TRMs)
This standard is issued under the fixed designation D6454/D6454M; 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 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This test method establishes the procedures for evalua-
D4354 Practice for Sampling of Geosynthetics and Rolled
tion of the deformations of a turf reinforcement mat (TRM)
Erosion Control Products (RECPs) for Testing
under short-term compressive loading. This test method is
D4439 Terminology for Geosynthetics
strictly an index test method to be used to verify the compres-
D5199 Test Method for Measuring the Nominal Thickness
sive strength consistency of a given manufactured geosyn-
of Geosynthetics
thetic. Results from this test method should not be considered
as an indication of actual or long-term performance of the
TRM in field applications. 3. Terminology
3.1 Definitions:
1.2 Since theseTRMs experience multidirectional compres-
3.1.1 compressive deformation, [L], n—thedecreaseingage
sive loadings in the field, this test method will not show actual
length produced in the test specimen by a compressive load.
field performance and should not be used for this specific
objective. The evaluation of the results also should recognize
3.1.2 compressive strain, [nd], n—the ratio of compressive
that the determination of the short-term single plane compres-
deformation to the gage length of the test specimen.
sive behavior of geosynthetics does not reflect the installed
3.1.3 gage length, [L], n—in compression testing, the mea-
performance ofTRMs and, therefore, should not be used as the
sured thickness of the test specimen under specified compres-
only method of product or performance specification.
sional force, expressed in units of length prior to compressive
1.3 The values stated in either SI units or inch-pound units loading. D5199
are to be regarded separately as standard. The values stated in
3.1.4 geosynthetic, n—a planar product manufactured from
each system are not necessarily exact equivalents; therefore, to
polymeric material used with foundation, soil, rock, earth, or
ensure conformance with the standard, each system shall be
any other geotechnical engineering related material as an
used independently of the other, and values from the two
integral part of a man-made project, structure, or system.
systems shall not be combined.
D4439
1.4 This standard does not purport to address all of the
3.1.5 index test, n—a test procedure which may contain a
safety concerns, if any, associated with its use. It is the
known bias but which may be used to establish an order for a
responsibility of the user of this standard to establish appro-
setofspecimenswithrespecttothepropertyofinterest. D4439
priate safety, health, and environmental practices and deter-
3.1.6 yield point, n—the first point on the load-deformation
mine the applicability of regulatory limitations prior to use.
curve at which an increase in deformation occurs without a
1.5 This international standard was developed in accor-
corresponding increase in load.
dance with internationally recognized principles on standard-
3.1.6.1 Discussion—Some geosynthetics do not exhibit an
ization established in the Decision on Principles for the
exact yield point. The tested TRM may exhibit a less steep
Development of International Standards, Guides and Recom-
slope at yield. In addition, it should be stated that the yield
mendations issued by the World Trade Organization Technical
point also may be the ultimate strength of the TRM.
Barriers to Trade (TBT) Committee.
3.1.7 For definitions of terms relating to geotextiles, refer to
Terminology D4439.
1
This test method is under the jurisdiction of ASTM Committee D35 on
Geosynthetics and is the direct responsibility of Subcommittee D35.05 on Geosyn-
2
thetic Erosion Control. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Sept. 1, 2021. Published September 2021. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1999. Last previous edition approved in 2016 as D6454/D6454M – 99 Standards volume information, refer to the standard’s Document Summary page on
ɛ1
(2016) . DOI: 10.1520/D6454_D6454M-99R21. the ASTM website.
Copyright © ASTM International,
...

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4.4 Any supply chain operator can use this practice to conduct an internal gap assessment and risk analysis to identify opportunities for improvement.  
4.5 Certification bodies can use the standard to develop supplier audit programs.  
4.6 Section 5 provides details on the supplier lifecycle management process that includes the following seven activities:  
4.6.1 Supply and supplier information management.  
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4.6.3 Supplier options, evaluation, and selection.  
4.6.4 Supplier onboarding.  
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4.6.6 Supplier relationship management.  
4.6.7 Supplier offboarding.  
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1.1 This practice covers the recommended procedure for determining the water activity (aw) of a cannabis flower sample.  
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Standard Specification for Maintaining Acceptable Water Activity (aw) Range (0.55 to 0.65) for Dry Cannabis Flower Intended for Human/Animal Use

ABSTRACT
This specification prescribes the recommended range of water activity (aw) suitable for safe and efficacious storage of cannabis flowers or portions thereof. Water activity (aw) is defined as the partial vapor pressure of water in a substance divided by the partial vapor pressure of pure water at the same temperature, which can be calculated by dividing the partial vapor pressure of water in the substance by the partial vapor pressure of pure water at the same temperature. This describes quantitatively the capability of the cannabis flower in a sealed container to affect the humidity of the container's headspace air. aw shall be less than 0.65 to ensure against undesirable growth of microorganisms such as mold, and shall be greater than 0.55 to ensure against physical damage (breakage) in routine handling and storage. If aw exceeds 0.68, further drying of the cannabis flower(s) shall be required to ensure that the aw is in the range 0.55–0.65. If aw is less than 0.68, co-storage with a salt-based aw (relative humidity) control sachet(s) designed to maintain the relative humidity between 0.55 to 0.65 can effectively bring the stored cannabis flower(s) into the specified 0.55–0.65 range. Storing cannabis flower with appropriately designed aw (relative humidity) salt-based control sachets intended to ensure a relative humidity of 0.55 to 0.65 in sealed containers can maintain the optimum storage conditions.
Maintaining the requisite aw throughout the supply chain from completion of drying through merchandising ensures safety and quality for the consumer.
SCOPE
1.1 This specification covers the recommended range of aw suitable for safe and efficacious storage of cannabis flowers or portions thereof.  
1.2 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.  
1.3 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.

  • Technical specification
    3 pages
    English language
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  • Technical specification
    3 pages
    English language
    sale 15% off