1、Designation:D638899(Reapproved 2012)Standard Practice forTests to Evaluate the Chemical Resistance of Geonets toLiquids1This standard is issued under the fixed designation D6388;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the yea
2、r 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 practice describes procedures for testing geonetproducts for chemical resistance with liquid wastes,preparedchemi
3、cal solutions,or leachates,or both,derived from solidwastes.1.2 This practice describes test methods for measuringchanges in mass,dimensions,tensile and hydraulic propertiesand other optional physical and mechanical properties causedby immersion in test solutions,which may be representative ofantici
4、pated end use conditions.This practice may be used toassess the extent to which a products as-manufactured prop-erties are affected by such immersion.1.3 This practice is intended to be used in conjunction withPractices D5322 or D5496.The scope of this practice is limitedto testing and reporting pro
5、cedures for unexposed and exposedgeonet samples.1.4 Evaluation or interpretation of test data is beyond thescope of this practice.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish a
6、ppro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.See Section 7 forspecific hazards statements.2.Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD792 Test Methods for Density and Specific Gravity(Rela-tive Den
7、sity)of Plastics by DisplacementD1238 Test Method for Melt Flow Rates of Thermoplasticsby Extrusion PlastometerD1621 Test Method for Compressive Properties of RigidCellular PlasticsD4439 Terminology for GeosyntheticsD4595 Test Method for Tensile Properties of Geotextiles bythe Wide-Width Strip Metho
8、dD4716 Test Method for Determining the(In-plane)FlowRate per Unit Width and Hydraulic Transmissivity of aGeosynthetic Using a Constant HeadD5035 Test Method for Breaking Force and Elongation ofTextile Fabrics(Strip Method)D5199 Test Method for Measuring the Nominal Thicknessof GeosyntheticsD5322 Pra
9、ctice 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 Liquids2.2 EPA Standards:EPA/600/288/052 Lining of
10、 Waste Containment and OtherImpoundment Facilities3EPA 9090 Compatibility Test for Wastes and MembraneLiners43.Terminology3.1 Definitions:3.1.1 chemical resistance,n for geosynthetics,the extentto which a material or product retains its original physical andchemical characteristics as a function of
11、immersion in,orcontact with,a foreign substance(see Practice D5747).3.1.2 geonet,na geosynthetic consisting of integrallyconnected parallel sets of ribs overlying similar sets at variousangles for planar drainage of liquids or gases(see TerminologyD4439).1This practice is under the jurisdiction of A
12、STM Committee D35 on Geosyn-thetics and is the direct responsibility of Subcommittee D35.02 on EnduranceProperties.Current edition approved July 1,2012.Published July 2012.Originally approvedin 1999.Last previous edition approved in 2005 as D638899(2005).DOI:10.1520/D6388-99R12.2For referenced ASTM
13、standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from the National Technical Information Service,PB89129670.4Available from t
14、he Superintendent of Documents,U.S.Government PrintingOffice,Washington,DC 20402.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.3 geosynthetic,na planar product manufactured frompolymeric material used with soil,rock,earth,or other g
15、eo-technical engineering related material as an integral part of amanmade project,structure,or system(see TerminologyD4439).3.1.4 specimen,na specific portion of a material orlaboratory sample upon which a test is performed or which istaken for that purpose(see Terminology D4439).3.1.5 For definitio
16、ns of terms used in this practice,refer toTerminologies D123 and D4439.4.Summary of Practice4.1 This practice defines test methods and procedures forevaluating the resistance of geonet to liquid exposure bymonitoring physical and chemical properties of geonet speci-mens immersed in a test liquid.The physical condition of thegeonet is monitored as a function of cumulative exposure timeby means of dimensional measurements and physical andchemical property tests.5.Significance and Use5.1 This pract
