ASTM D6566-2018 red 0000 Standard Test Method for Measuring Mass Per Unit Area of Turf Reinforcement Mats《草皮增强垫单位面积质量测量的标准试验方法》.pdf
《ASTM D6566-2018 red 0000 Standard Test Method for Measuring Mass Per Unit Area of Turf Reinforcement Mats《草皮增强垫单位面积质量测量的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D6566-2018 red 0000 Standard Test Method for Measuring Mass Per Unit Area of Turf Reinforcement Mats《草皮增强垫单位面积质量测量的标准试验方法》.pdf(4页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D6566 17D6566 18Standard Test Method forMeasuring Mass perPer Unit Area of Turf ReinforcementMats1This standard is issued under the fixed designation D6566; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of l
2、ast revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers an index to the determination of mass per unit area of all turf reinforcement mats.1.2 The valu
3、es stated in SI units are to be regarded as standard. The values given in parentheses are for information only.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safe
4、ty safety, health, and healthenvironmental practices and determine theapplicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Develo
5、pment of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD1776 Practice for Conditioning and Testing TextilesD4354 Practice for Sampli
6、ng of Geosynthetics and Rolled Erosion Control Products (RECPs) for TestingD4439 Terminology for GeosyntheticsE177 Practice for Use of the Terms Precision and Bias in ASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method2.2 ISO/DIS Documen
7、t:39864-1990 Mass perPer Unit Area of Geotextiles3. Terminology3.1 For definitions of textile terms used in this test method, refer to Terminology D123.3.2 For definitions of terms relating to geotextiles used in this test method, refer to Terminology D4439.4. Summary of Test Method4.1 The mass per
8、unit area of a turf reinforcement mat is determined by weighing test specimens of known dimensions, cut fromequally spaced distances over the full width of the laboratory sample. The calculated values are then averaged to obtain the meanmass per unit area of the laboratory sample.5. Significance and
9、 Use5.1 This test method is used to determine if the turf reinforcement mat meets specifications for mass per unit area. This testmethod can be used for quality control to determine specimen conformance. This measurement allows for a simple control of thedelivered material by a comparison of the mas
10、s per unit area of the delivered material and the specified mass per unit area.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 ErosionControl.Current edition approved Jan. 1, 2017Feb. 1, 2018.
11、 Published January 2017February 2018. Originally approved in 2000. Last previous edition approved in 20142017 asD6566 14.D6566 17. DOI: 10.1520/D6566-17.10.1520/D6566-18.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annua
12、l Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.This document is not an ASTM standard and is intended only to
13、provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit 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 versionof
14、the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States15.2 The procedure in this test method may be used for acceptance testing of commercial shipments, but caution
15、is advised sinceinformation about between-laboratory precision is incomplete. Comparative tests in accordance with 5.2.1 are advisable.5.2.1 In case of a dispute arising from differences in reported test results when using the procedures in this test method foracceptance testing of commercial shipme
16、nts, the purchaser and the manufacturer should conduct comparative tests to determineif there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias.AsAt a minimum, the two parties should take a group of test specimens that are
17、 as homogeneous as possible and which are froma lot of material of the type in question. The test specimen should then be randomly assigned in equal numbers to each laboratoryfor testing. The average results from the two laboratories should be compared using the appropriate StudentsStudents t-test a
18、ndan acceptable probability level chosen by the two parties before testing is begun. If a bias is found, either its cause must be foundand corrected or the purchaser and the manufacturer must agree to interpret future test results in light of the known bias.6. Apparatus6.1 Balance, calibrated, with
19、an accuracy of 0.01 g.7. Sampling7.1 Lot SampleIn the absence of other guidelines, divide the product into lots and take lot samples in accordance with PracticeD4354.7.2 Laboratory SampleFor the laboratory sample, take a full-width sample of sufficient length in the machine direction so thatthe requ
20、ired size and number of specimens can be obtained. Exclude the inner and outer layers or wraps of the roll or any materialcontaining folds, crushed areas, or other distortions not representative of the sampled lot.7.3 Remove test specimens from the laboratory sample so that each specimen will contai
21、n different machine and cross-machineelements with no specimen taken nearer than 100 mm 4 in. from the roll sides or ends, unless otherwise specified.7.4 Cut specimens such that they are representative of the entire roll width and with a combined total minimum area of230 000 mm2 356 in.2. Each test
22、specimen shall be equal in area (not less than 23 000 mm2 35.6 in.2). Cut each test specimenwith an accuracy of 60.5 % of its area.NOTE 1For test specimens prepared in the field, larger than minimum-sized test specimens will be required to stay within the cutting accuracy (0.5 %).Field experience ha
23、s shown that a test specimen with an area not less than 207 000 mm2 (320.4 in.2) will be necessary to achieve the required accuracy.7.4.1 Cut the test specimens at least one tenth one-tenth the width of the turf reinforcement mat from any selvage, unlessotherwise specified.7.4.2 If the structure of
24、the turf reinforcement mat is such that the specified test specimen size is not representative of thelaboratory sample, a larger size shall be agreed upon between the purchaser and the supplier.7.5 Number of SpecimensUnless otherwise agreed upon, as when provided in an applicable material specificat
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