ASTM_D_1900_-_20.pdf

Designation:D190020Standard Practice forCarbon BlackSampling Bulk Shipments1This standard is issued under the fixed designation D1900;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the 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 covers procedures for the sampling anddata reporting of bulk shipments of carbon black in three-compartment hopper rail cars and compartmented bulk hoppertrailers.NOTE1The tests to be made on the samples obtained by this practice,how many samples are taken,where they are taken,and what statisticalvalues(if any)to report shall be determined by agreement between thepurchaser and the manufacturer.This practice gives guidance for use indeveloping such agreements or for use when no formal agreement exists.The specific details of each procedure are described in appropriate ASTMtest methods used for testing carbon black.NOTE2Some purchasers or manufacturers may consider FlexibleIntermediate Bulk Containers(FIBC)to be a bulk shipment.See PracticeD1799 for guidance on sampling and reporting for this package.1.2 The values stated in SI units are to be regarded asstandard.The values given in parentheses are for informationonly.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 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 to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D1509 Test Methods for Carbon BlackHeating LossD1799 Practice for Carbon BlackSampling PackagedShipmentsD5817 Practice for Carbon Black,PelletedReduction,Blending,and Drying of Gross Samples for Testing3.Significance and Use3.1 Sampling of bulk shipments of carbon blacks is ofutmost importance since the location and number of samplestaken by different laboratories can have a significant effect onthe agreement of test values obtained.This practice is for usein obtaining representative samples of carbon black in eachcompartment or in the entire hopper car or hopper truck.Thesesamples may be used to ascertain the average quality or theuniformity of a shipment,or both.4.Apparatus4.1 Sample Splitter,riffle-type(see Practice D5817 forequipment information).4.2 Sample Containers,airtight,4 dm3(1-gal)capacity.4.3 Scoop,sample(optional).4.4 Thief,sample,capable of sampling at least 150 mm(6in.)below the surface(optional).5.Sampling Procedure5.1 In the absence of an agreed upon sampling patternbetween the producer and the consumer,the following sam-pling patterns per shipment are may be used with the assump-tion that the lot was produced and packaged under conditionsto insure acceptable lot uniformity.If the uniformity of the lotis suspect or unknown,the number of samples taken should beincreased.5.2 Withdraw approximately a 4 dm3(1 gal)sample fromeach sample port,after first withdrawing at least 4 dm3(1 gal)of carbon black from each port and discarding it.Sample portsare located on each side of each compartment in a three-compartment bulk hopper rail car and on one side of a hoppertruck.5.3 If sampling from the top ports of a hopper car or hoppertruck,approximately 150 mm(6 in.)of surface material shouldbe raked aside before collecting approximately 4 dm3(1 gal)for testing.5.4 Asample thief may be used to sample from the top portsof a hopper car or hopper truck.The thief must be able to1This practice is under the jurisdiction of ASTM Committee D24 on CarbonBlack and is the direct responsibility of Subcommittee D24.61 on Carbon BlackSampling and Statistical Analysis.Current edition approved Nov.1,2020.Published November 2020.Originallyapproved in 1961.Last previous edition approved in 2019 as D1900 19.DOI:10.1520/D1900-20.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,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.1sample at least 150 mm(6 in.)below the surface.Coll