1、Designation:D598818Standard Test Method forDetermining Aerobic Biodegradation of Plastic Materials inSoil1This standard is issued under the fixed designation D5988;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revi
2、sion.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This test method covers determination under laboratoryconditions of the degree and rate of aerobic biodegradation ofplastic materia
3、ls,including formulation additives,in contactwith soil.1.2 This test method is designed to measure the biodegrad-ability of plastic materials relative to a reference material in anaerobic environment.1.3 This test method is designed to be applicable to allplastic materials that are not inhibitory to
4、 the bacteria and fungipresent in soil.1.4 Claims of performance shall be limited to the numericalresult obtained in the test and not be used for unqualified“biodegradable”claims.Reports shall clearly state the percent-age of net gaseous carbon generation for both the test andreference samples at th
5、e completion of the test.Results shallnot be extrapolated beyond the actual duration of the test.1.5 The values stated in SI units are to be regarded as thestandard.1.6 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the u
6、ser of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.Aspecific hazard statement is given in Section 8.1.7 This ASTM test method is equivalent to ISO 17556.1.8 This international standard was d
7、eveloped 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.Referenced Docu
8、ments2.1 ASTM Standards:2D425 Test Method for Centrifuge Moisture Equivalent ofSoilsD618 Practice for Conditioning Plastics for TestingD883 Terminology Relating to PlasticsD1193 Specification for Reagent WaterD1293 Test Methods for pH of WaterD2974 Test Methods for Moisture,Ash,and Organic Matterof
9、Peat and Other Organic SoilsD2980 Test Method for Saturated Density,Moisture-Holding Capacity,and Porosity of Saturated Peat Materi-alsD2989 Test Method for Acidity-Alkalinity of HalogenatedOrganic Solvents and Their AdmixturesD4129 Test Method for Total and Organic Carbon in Waterby High Temperatur
10、e Oxidation and by CoulometricDetectionD4972 Test Method for pH of SoilsD5338 Test Method for Determining Aerobic Biodegrada-tion of Plastic Materials Under Controlled CompostingConditions,Incorporating Thermophilic TemperaturesD5511 Test Method for Determining Anaerobic Biodegrada-tion of Plastic M
11、aterials Under High-Solids Anaerobic-Digestion Conditions2.2 APHA-AWWA-WPCF Standards:32540 D Total Suspended Solids Dried at 103105C2540 G Total,Fixed,and Volatile Solids in Solids andSemi-Solid Samples2.3 ISO Standard:4ISO 11261 Soil QualityDetermination of Total NitrogenModified Kjeldahl MethodIS
12、O 17556 PlasticsDetermination of the Ultimate Aerobic1This test method is under the jurisdiction of ASTM Committee D20 on Plasticsand is the direct responsibility of Subcommittee D20.96 on EnvironmentallyDegradable Plastics and Biobased Products.Current edition approved April 1,2018.Published April
13、2018.Originallyapproved in 1996.Last previous edition approved in 2012 as D5988-12.DOI:10.1520/D5988-18.2For referenced ASTM 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 Doc
14、ument Summary page onthe ASTM website.3Standard Methods for the Examination of Water and Wastewater,17th Edition,1989,Available from American Public Health Association(APHA),800 I St.,NW,Washington,DC 20001,http:/www.apha.org.4Available from American National Standards Institute(ANSI),25 W.43rd St.,
15、4th Floor,New York,NY 10036,http:/www.ansi.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally rec
16、ognized 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.1 Biodegradability of Plastic Materials in Soil by Measuringthe Oxygen Demand in a Respirometer or the Amount ofCarbon Dioxide Evolved3.Terminology3.1 DefinitionsDefinitions of terms applicable to this testmethod appear in Terminology D883.4.Summary of Test Method4.
