1、Designation:D621317Standard Practice forTests to Evaluate the Chemical Resistance of Geogrids toLiquids1This standard is issued under the fixed designation D6213;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revisi
2、on.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 practice covers the procedures for testing ofgeogrids for chemical resistance to liquids.1.2 This practice describes methods for
3、measuring changesin physical and mechanical properties caused by immersion intest solutions that may be representative of anticipated end-useconditions.1.3 This practice describes procedures for required andrecommended testing of geogrids.1.4 Evaluation or interpretation of test data is beyond thesc
4、ope of this practice.1.5 This practice is intended to be used in conjunction withPractice D5322 or Practice D5496,or both.The scope of thispractice is limited to testing and reporting procedures forunexposed and exposed geogrid coupons.1.6 This standard does not purport to address all of thesafety c
5、oncerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.Specific precau-tionary statements are given in Section 7.1.7 This international s
6、tandard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Re
7、ferenced Documents2.1 ASTM Standards:2D16 Terminology for Paint,Related Coatings,Materials,andApplicationsD76 Specification for Tensile Testing Machines for TextilesD123 Terminology Relating to TextilesD883 Terminology Relating to PlasticsD1238 Test Method for Melt Flow Rates of Thermoplasticsby Ext
8、rusion PlastometerD1695 Terminology of Cellulose and Cellulose DerivativesD4439 Terminology for GeosyntheticsD4595 Test Method for Tensile Properties of Geotextiles bythe Wide-Width Strip MethodD4603 Test Method for Determining Inherent Viscosity ofPoly(Ethylene Terephthalate)(PET)by Glass Capillary
9、ViscometerD5322 Practice for Laboratory Immersion Procedures forEvaluating the Chemical Resistance of Geosynthetics toLiquidsD5496 Practice for In Field Immersion Testing of Geosyn-theticsD5747 Practice for Tests to Evaluate the Chemical Resis-tance of Geomembranes to LiquidsE375 Definitions of Term
10、s Relating to Resinography(With-drawn 1992)33.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this practice,refer toTerminologies D16,D123,D883,D1695,D4439,and E375.4.Summary of Practice4.1 This practice defines test methods and procedures forevaluating the resistance of geogrids t
11、o liquid exposure bymonitoring physical and chemical properties of geogrid cou-pons after immersion in a test liquid.The physical condition ofthe geogrid is monitored as a function of cumulative exposuretime by means of visual observations,and mechanical andchemical property tests.5.Significance and
12、 Use5.1 This practice is intended to provide a list of standardprocedures for test programs investigating the chemical resis-tance of a geogrid to a liquid.This practice should be used in1This practice is under the jurisdiction of ASTM Committee D35 on Geosyn-thetics and is the direct responsibility
13、 of Subcommittee D35.02 on EnduranceProperties.Current edition approved July 1,2017.Published July 2017.Originally approvedin 1997.Last previous edition approved in 2009 as D6213 97(2009).DOI:10.1520/D6213-17.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer
14、Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Consh
15、ohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organi
16、zation Technical Barriers to Trade(TBT)Committee.1 the absence of other specifications required for the particularsituation being addressed.5.2 This practice is intended to provide a basis of standard-ization for those wishing to compare or investigate the chemi-cal resistance of a geogrid.It should be recognized thatchemical resistance is a user judgment evaluation and that thispractice does not offer procedures for interpreting the resultsobtained from test procedures contained in this practic
