ASTM D6567-2014 red 2354 Standard Test Method for Measuring the Light Penetration of a Turf Reinforcement Mat &40 TRM&41 《测量草皮加筋垫40 TRM41光穿透性的标准试验方法》.pdf
《ASTM D6567-2014 red 2354 Standard Test Method for Measuring the Light Penetration of a Turf Reinforcement Mat &40 TRM&41 《测量草皮加筋垫40 TRM41光穿透性的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D6567-2014 red 2354 Standard Test Method for Measuring the Light Penetration of a Turf Reinforcement Mat &40 TRM&41 《测量草皮加筋垫40 TRM41光穿透性的标准试验方法》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D6567 00 (Reapproved 2014)D6567 14Standard Test Method forMeasuring the Light Penetration of a Turf ReinforcementMat (TRM)1This standard is issued under the fixed designation D6567; the number immediately following the designation indicates the year oforiginal adoption or, in the case o
2、f revision, the year of last 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 measuring the amount of light that penetrates through a Turf Reinforce
3、ment Mat.1.2 This test method does not provide light penetration values for TRM under variable normal sun and soil conditions. This testmethod determines nominal light penetration.1.3 The values stated as a percentage are to be regarded as the standard. The values provided in foot-candles are for in
4、formationonly.1.4 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 safety and health practices and determine the applicability of regulatorylimitations prior to use.2.
5、Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD1776 Practice for Conditioning and Testing TextilesD4354 Practice for Sampling of Geosynthetics and Rolled Erosion Control Products(RECPs) for TestingD4439 Terminology for GeosyntheticsE177 Practice for Use of the Terms Pr
6、ecision and Bias in ASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method3. Terminology3.1 Definitions:3.1.1 light penetration, nthe percentage of incandescent light that is measurable through a geosynthetic material from a staticlight sou
7、rce.3.1.2 turf reinforcement mat (TRM),na long term non-degradable rolled erosion control product composed of a UV stabilized,non-degradable, synthetic fibers, nettings or filaments, or all of these, processed into three dimensional reinforcement matrices.3.2 For definitions of other textile terms u
8、sed in this test method, refer to Terminology D123.3.3 For definitions of other terms relating to geotextiles and geomembranes used in this test method, refer to TerminologyD4439.4. Summary of Test Method4.1 The nominal light penetration of TRMs is determined by observing the foot-candles on the lig
9、ht meter through a determinedopen area versus the amount of foot-candles on the light meter once the TRM is placed over the determined open area.5. Significance and Use5.1 Light penetration may be used to control the quality of many TRMs. Light penetration is not indicative of field performanceand t
10、herefore is not recommended for specifications.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 March 15, 2014May 1, 2014. Published April 2014June 2014.
11、 Originally approved in 2000. Last previous edition approved in 20062014 asD6567 00(2006).(2014). DOI: 10.1520/D6567-00R14.10.1520/D6567-14.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume
12、 information, refer to the standards Document Summary page on the ASTM website.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. Becauseit may not be technically possible to adequat
13、ely depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof 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
14、, PA 19428-2959. United States15.2 The light penetration of TRMs may vary considerably depending on the composite materials used in the matrix of the mator due to inconsistency within a given mat. To minimize variation, specific sample size and procedures are indicated in this testmethod to help ens
15、ure comparable results.5.3 This test method may be used to determine the effect of different composite materials and make-up of TRMs.5.4 This test method may be used for acceptance testing of commercial shipments of TRMs, but caution is advised sinceinformation on between laboratory precision is inc
16、omplete. Comparative tests as directed in 5.4.1 may be advisable.5.4.1 In case of a dispute arising from differences in reported test results when using this test method for acceptance testing ofcommercial shipments, the purchaser and the supplier should conduct comparative tests to determine if the
17、re is a statistical biasbetween their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the twoparties should take a group of test specimens that are as homogeneous as possible and that are formed from a lot of material ofthe type in question.
18、 The test specimens should be randomly assigned in equal numbers to each laboratory for testing. The averageresults from the two laboratories should be compared using Students t-test for unpaired date and an acceptable probability levelchosen by the two begun. If bias is found, either its cause must
19、 be corrected, or the purchaser and supplier must agree to the lightof the known bias.NOTE 1The user should be aware that the makeup and possible movement of the composite materials, and the like, may affect the TRMs followingthe time when they are rolled up on rolls shipped and stored.6. Apparatus6
20、.1 Light Penetration BoxSee Fig. 1 (length view), and see Fig. 2 (width view).NOTE 2The light penetration box shown in Fig. 1 is built from 34 in. wood.6.2 Adjustable Rod with Light BulbSee Fig. 3.6.3 Light MeterThe light meter must measure in foot-candles and be capable of measuring determined open
21、 area foot-candlereading as well as determined area with dense TRM material in place. A meter with a digital readout such as Extech InstrumentsModel 407026 Heavy Duty Light Meter is recommended.36.4 Cutting DiesThe cutting dies must be capable of cutting specimen dimensions at least 200 mm (8 in.) b
22、y at least 250 mm(10 in.).NOTE 3Due to possible loss of loose internal components during cutting and handling of many TRMs, care should be exercised to minimize theseeffects.3 The sole source of supply of the apparatus known to the committee at this time is Extech Instruments Corporation, 9 Townsend
23、 West, Nashua, NH 03063. If you areaware of alternative suppliers, please provide this information to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee,1 which you may attend.FIG. 1 Light Penetration BoxD6567 1427. Sa
24、mpling7.1 Sample by LotIn the absence of other guidelines, divide the product into lots and sample as specified in Practice D4354.7.2 Laboratory SampleFor the laboratory sample, take a full width sample of sufficient length along the selvage or edge ofroll so that the requirements of 7.3 through 7.4
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