1、Designation:D638999(Reapproved 2012)Standard Practice forTests to Evaluate the Chemical Resistance of Geotextiles toLiquids1This standard is issued under the fixed designation D6389;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the
2、 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 practice describes the procedures used for testinggeotextiles for chemical resistance to liquids.1.2 This pra
3、ctice describes test methods for measuringchanges in planar dimensions,tensile properties,and otheroptional physical,mechanical,and hydraulic properties causedby immersion in test liquids which may be representative ofanticipated end-use conditions.This practice may be used toassess the extent to wh
4、ich a products as-manufactured prop-erties are affected by such immersion.1.3 This practice is intended to be used in conjunction witheither Practices D5322 or D5496.The scope of this practice islimited to testing and reporting procedures for unexposed andexposed geotextile samples.1.4 Evaluation or
5、 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 appro-priate safety and health practices and determine the applica
6、-bility of regulatory limitations prior to use.For specificwarning statements,see Section 7.2.Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD1238 Test Method for Melt Flow Rates of Thermoplasticsby Extrusion PlastometerD3895 Test Method for Oxidative-Induction Time of
7、Poly-olefins by Differential Scanning CalorimetryD4439 Terminology for GeosyntheticsD4491 Test Methods for Water Permeability of Geotextilesby PermittivityD4533 Test Method for Trapezoid Tearing Strength of Geo-textilesD4595 Test Method for Tensile Properties of Geotextiles bythe Wide-Width Strip Me
8、thodD4603 Test Method for Determining Inherent Viscosity ofPoly(Ethylene Terephthalate)(PET)by Glass CapillaryViscometerD4632 Test Method for Grab Breaking Load and Elongationof GeotextilesD4716 Test Method for Determining the(In-plane)FlowRate per Unit Width and Hydraulic Transmissivity of aGeosynt
9、hetic Using a Constant HeadD4751 Test Method for DeterminingApparent Opening Sizeof a GeotextileD4833 Test Method for Index Puncture Resistance ofGeomembranes and Related ProductsD5199 Test Method for Measuring the Nominal Thicknessof GeosyntheticsD5261 Test Method for Measuring Mass per Unit Area o
10、fGeotextilesD5322 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 LiquidsD5885 Test Method for
11、Oxidative Induction Time of Poly-olefin Geosynthetics by High-Pressure Differential Scan-ning Calorimetry3.Terminology3.1 Definitions:3.1.1 chemical resistance,nfor geosynthetics,the extentto which a material or product retains its as-manufacturedphysical and chemical characteristics when subjected
12、to im-mersion or contact with a foreign substance(see PracticeD5747).3.1.2 geosynthetic,na planar product manufactured frompolymeric material used with foundation soil,rock,earth,or1This practice is under the jurisdiction of ASTM Committee D35 on Geosyn-thetics and is the direct responsibility of Su
13、bcommittee D35.02 on EnduranceProperties.Current edition approved July 1,2012.Published July 2012.Orginally approvedin 1999.Last previous edition approved in 2005 as D638999(2005).DOI:10.1520/D6389-99R12.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Servi
14、ce at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 any other geotechnical engineering related material
15、as anintegral part of a manmade project,structure,or system(seeTerminology D4439).3.1.3 geotextile,nany permeable textile used withfoundation,soil,rock,earth,or any other geotechnical materialas an integral part of manmade product,structure,or system(see Terminology D4439).3.1.4 For definitions of o
16、ther terms used in this practice,refer to Terminologies D123 and D4439.4.Summary of Practice4.1 This practice defines test methods and procedures forevaluating the resistance of geotextiles to liquid exposure bymonitoring physical and chemical properties of geotextilesspecimens immersed in a test liquid.The physical condition ofthe geotextile is monitored as a function of cumulative expo-sure time by means of dimensional measurements and physicalproperty tests.5.Significance and Use5.1 This prac
