1、Designation:D549615(Reapproved 2020)Standard Practice forIn-Field Immersion Testing of Geosynthetics1This standard is issued under the fixed designation D5496;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.
2、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 an approach and methodologyfor immersion testing of geosynthetics(for example,geomem-branes used for landfill lin
3、er).1.2 This practice does not provide for definition of thetesting to be performed on the geosynthetic samples for fieldimmersion.This practice does not address the determination ofresistance of the geosynthetic to the liquid in which it isimmersed.The user of this practice is referred to the appro
4、pri-ate Standard Guide for Tests to evaluate the chemical resis-tance and for defining the testing to be performed for each ofthe geosynthetic components listed in 2.1.NOTE1EPA Method 9090 has been used in the past to investigate thecompatibility of geomembrane to leachates.1.3 The values stated in
5、inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is th
6、eresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard
7、-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.Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD4439 Terminolog
8、y for GeosyntheticsD5322 Practice for Laboratory Immersion Procedures forEvaluating the Chemical Resistance of Geosynthetics toLiquidsD5747/D5747M Practice for Tests to Evaluate the ChemicalResistance of Geomembranes to Liquids2.2 EPA Document:3SW846 Method 9090 Compatibility Test for Wastes andMemb
9、rane Liners3.Terminology3.1 Definitions:3.1.1 field testing,ntesting performed in the field underactual conditions of temperature and exposure to the fluids forwhich the immersion testing is being performed.3.1.2 For definitions relating to geosynthetics,refer toTerminology D4439.3.1.3 For definitio
10、ns relating to textiles,refer to Terminol-ogy D123.4.Significance and Use4.1 This practice provides an approach and methodology forconducting field immersion testing of geosynthetics used in theconstruction of liners in reservoirs,ponds,impoundments,orlandfills for containing liquids and solids.This
11、 practice shouldbe performed in accordance to and in conjunction with PracticeD5322 for assessing chemical resistance under both laboratoryand field conditions.4.2 The specification of procedures in this practice isintended to serve as a guide for those wishing to compare orinvestigate the chemical
12、resistance of geosynthetics underactual field conditions.5.Apparatus5.1 Sample Container,for containment of the geosynthetictest specimens.The containers should be perforated on all sidesand at the bottom to allow for complete flooding of the testspecimens.Stainless steel,or other chemically resista
13、nt steelalloys,is recommended.Do not use 316 stainless steel forfluids known to contain high-chloride ion concentrations.1This practice is under the jurisdiction of ASTM Committee D35 on Geosyn-thetics and is the direct responsibility of Subcommittee D35.02 on EnduranceProperties.Current edition app
14、roved Dec.1,2020.Published December 2020.Originallyapproved in 1993.Last previous edition approved in 2015 as D5496 15.DOI:10.1520/D5496-15R20.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume
15、 information,refer to the standards Document Summary page onthe ASTM website.3Available from United States EPA,Office of Solid Waste and EmergencyResponse,Test Methods for Evaluating Solid Waste,Physical/Chemical Methods.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocke
16、n,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 Organization Technical Barriers to Trade(TBT)Committee.NOTE2Achemical analysis of the fluid should be available to the userprior to the start of field compatibility testing to allow for a review of asuitable mate