1、Designation:D346/D346M11(Reapproved 2019)1Standard Practice forCollection and Preparation of Coke Samples for LaboratoryAnalysis1This standard is issued under the fixed designation D346/D346M;the number immediately following the designation indicates the yearof original adoption or,in the case of re
2、vision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1NOTEEditorial changes were made throughout in October 2019.INTRODUCTIONCoke,especially run of oven coke or foundr
3、y coke,or both,is a difficult material to sample.It isimperative that every sample be collected and handled carefully and conscientiously and in strictaccordance with the standard procedure described herein.Gross samples of not less than the quantities designated in this practice must be taken,wheth
4、er thecoke to be sampled consists of a few tons or several hundred tons.1.Scope1.1 This practice covers procedures for the collection andreduction of samples of coke to be used for physical tests,chemical analyses,and the determination of total moisture.1.2 The values stated in either SI units or in
5、ch-pound unitsare to be regarded separately as standard.The values stated ineach system are not necessarily exact equivalents;therefore,toensure conformance with the standard,each system shall beused independently of the other,and values from the twosystems shall not be combined.1.2.1 Values in SI u
6、nits or inch-pound units shall beobtained by measurement in SI units or inch-pound units orby appropriate conversion,using the Rules for Conversion andRounding given in IEEE/ASTM SI 10,of measurements madein SI units or other units.Values are stated in SI units wheninch-pound units are not used in p
7、ractice.1.3 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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to
8、use.1.4 This international standard was developed 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
9、 to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D167 Test Method for Apparent and True Specific Gravityand Porosity of Lump CokeD293/D293M Test Method for the Sieve Analysis of CokeD2013/D2013M Practice for Preparing Coal Samples forAnalysisD2234/D2234M Practice for Collection of a
10、 Gross Sampleof CoalD3038 Test Method for Drop Shatter Test for CokeD3302/D3302M Test Method for Total Moisture in CoalD3402/D3402M Test Method for Tumbler Test for CokeIEEE/ASTM SI 10 American National Standard for MetricPractice3.Significance and Use3.1 This practice may be used to provide a repre
11、sentativesample of the coke from which it is collected.Due to thevariability of coke and the wide variety of sampling equipment,caution must be exercised in all stages of sampling,fromsystem specifications and equipment procurement to equip-ment acceptance testing and actually taking the final sampl
12、e.3.2 This practice also provides an analysis sample of cokefrom the gross or divided sample.The analysis samples can beused to determine the value of the coke represented,its abilityto meet specifications,as well as for other purposes.1This practice is under the jurisdiction of ASTM Committee D05 o
13、n Coal andCoke and is the direct responsibility of Subcommittee D05.23 on Sampling.Current edition approved Aug.1,2019.Published October 2019.Originallyapproved in 1932.Last previous edition approved in 2011 as D346/D346M 11.DOI:10.1520/D0346_D0346M-11R19E01.2For referenced ASTM standards,visit the
14、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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United State
15、sThis 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
16、(TBT)Committee.1 4.Place of Sampling4.1 Sample coke while it is being loaded into or unloadedfrom railroad cars,ships,barges,or trucks,or when dischargedfrom supply bins,grab buckets,belt conveyers,or other cokeconveying equipment.Sample close to the point of interest.5.Collection of Gross Sample5.1 Collect increments regularly,systematically,and withsuch frequency,so that the entire quantity of coke sampled willbe represented proportionately in the gross sample,and a grosssample of the required
