1、Designation:D 5115 90(Reapproved 2004)Standard Test Method forCollecting Gross Samples and Determining the Fuel Qualityof RDF1This standard is issued under the fixed designation D 5115;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,
2、the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon(e)indicates an editorial change since the last revision or reapproval.INTRODUCTIONIt is not possible to gather a sample of a multi-ton lot of refuse derived fuel(RDF)with assurancethat the sa
3、mple is representative of the lot.Therefore,this test method has been developed wherebya series of twenty samples are analyzed over the course of a month and the average of the results arean empirical estimate that is adequate to be used to represent the RDF production over that month.This test meth
4、od may be used to ascertain RDF quality for purposes of contractual adjustment betweenproducer and user.1.Scope1.1 This test method covers the procedure for collection ofa series of 20 gross samples for analyses.The results ofanalysis,when averaged,are deemed representative of the lotor a production
5、 stream for a 1-month period.1.2 This test method may be used to determine fuel qualityon other than a monthly basis if 20 gross samples are gathered,analyzed and averaged.1.3 The values stated in inch-pound units are to be regardedas the standard.The values given in parentheses are forinformation o
6、nly.1.4 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-bility of regulatory limitations prior to use.Specific hazar
7、dstatements are given in Section 7.2.Referenced Documents2.1 ASTM Standards:2E 711 Test Method for Gross Calorific Value of Refuse-Derived Fuel by a Bomb CalorimeterE 790 Test Method for Residual Moisture in a Refuse-Derived Fuel Analysis SampleE 791 Test Method for Calculating Refuse-Derived FuelAn
8、alysis Data from As-Determined to Different BasesE 829 Test Method for Preparing RDF Laboratory Samplesfor AnalysisE 830 Test Method for Ash in the Analysis Sample ofRefuse-Derived FuelE 856 Definitions of Terms and Abbreviations Relating toPhysical and Chemical Characteristics of Refuse-DerivedFuel
9、E 954 Test Method for Packaging and Shipping of Labora-tory Samples of Refuse-Derived FuelE 955 Test Method for Thermal Characteristics of Refuse-Derived Fuel Macrosamples3.Terminology3.1 DefinitionsThe definitions covered in DefinitionsE 856 are applicable to this test method.4.Summary of Test Meth
10、od4.1 Twenty gross samples on RDF are taken at intervalsover a 1-month period and sent to the laboratory for analysis.4.2 The analysis results are averaged to establish the fuelquality of RDF for the month.5.Significance and Use5.1 This test method is available to producers and users ofRDF as a mean
11、s of determining thermal characteristics of RDFproduced over a 1-month production period for purposes ofcontract adjustment.1This test method is under the jurisdiction of ASTM Committee D34 on WasteManagement and is the direct responsibility of Subcommittee D34.06 on Recoveryand Reuse.Current editio
12、n approved May 21,1990.Published July 1990.2For 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 Document Summary page onthe ASTM website.1Copyright ASTM Interna
13、tional,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.6.Apparatus6.1 Conveyor Belt Sample Dividermade of two verticalwall members have a profile matching that of the top of thebelt,and having a space between the two walls not less thanthree times the top nominal part
14、icle size of the RDF is required.6.2 Conveyor Stream Sampling Devicea container with ahandle or mechanism to control insertion and withdrawal,suitable for collecting a representative sample from a stream ofmaterial falling from the discharge end of a conveyor isneeded.It shall have dimensions not le
15、ss than three times thesize of the top nominal particle size(95%passing)of the RDF,to avoid bridging and rejection of large particles.6.3 Sample Container 3-mil polyethylene bags,doublebagged,properly sealed,or noncorroding buckets or barrelswith airtight covers,of sufficient size to hold the sample
16、s isrequired.7.Hazards7.1 Due to the origins of municipal solid waste,workersshall use proper safety precautions in handling samples andconducting tests.Workers shall wear gloves and safety glasses,and when appropriate,dust masks.Workers shall be cautionedto wash their hands before eating,smoking or handlinggenitalia.7.2 Appropriate safety precautions shall be taken whenworking on or near equipment in collecting samples,due to thepossibility of getting objects or clothing caught in movingequipme
