ASTM_D_1799_-_03a_2014.pdf

Designation:D179903a(Reapproved 2014)Standard Practice forCarbon BlackSampling Packaged Shipments1This standard is issued under the fixed designation D1799;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This practice covers the sampling of packaged carbonblacks for shipment in bags,cartons,flexible intermediate bulkcontainers(FIBC),or other non-bulk packages.NOTE1The tests to be made on the samples obtained by this practiceshall be determined by the producer and the consumer.The specific detailsof each test method are described in appropriate ASTM methods used fortesting carbon black.1.2 The values stated in SI units are to be regarded as thestandard.The values in parentheses are for information only.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 and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D1509 Test Methods for Carbon BlackHeating LossD5817 Practice for Carbon Black,PelletedReduction,Blending,and Drying of Gross Samples for Testing3.Significance and Use3.1 This practice is for use in obtaining representativesamples of carbon black from the packages in the shipment.These samples are used to determine the average quality orvariability of the shipment.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.5.General5.1 Packaged shipments of carbon blacks most often consistof 11.35-kg(25-lb),22.7-kg(50-lb),25-kg(55-lb),or 50-kg(110-lb)bags.Flexible intermediate bulk containers usuallyrange in size from 180 kg(396 lb)to 1300 kg(2860 lb).Thispractice may be applied to bags or FIBCs of other sizes.Thesepackages are loaded into vans in definite patterns agreed uponby the producer and the consumer.These may be in the form ofunit loads,stacks,or individual FIBCs.In each case,ashipment involves a given number of packages,units,tiers,ormass.5.2 Samples are taken to evaluate conformance to specifiedrequirements.Multiple samples may be taken to evaluateconformance or uniformity,or both,of a lot.The number ofsamples,their location within the lot,and the quantity of thesamples is determined by the purpose for taking the samples.Alot shall be sampled as prescribed at the point of manufactureor at the receiving point as agreed upon by the producer and theconsumer.Samples may be taken from the packages as loadedor as received.Each sample taken shall represent a unit,lot,orapproximately equal mass of material.Generally,it is desirableto take one sample to represent each 5000 kg(11 000 lb)increment of the lot.For smaller lot sizes being sampled foruniformity,three samples representing approximately equalmasses are recommended.If the uniformity of the lot is suspector unknown,more samples may be required.For lots withknown acceptable uniformity,one sample may be sufficient.5.3 The size of the individual sample taken shall be deter-mined by the purpose for taking the sample;the quantityneeded to perform the expected test(s)with enough to repeat atest,if needed;whether the sample will be tested individuallyor in a composite;and the quantity needed for blending.For allsamples except those taken directly from a bag,a minimum of4 dm3(1 gal)is recommended.The 4 dm3(1 gal)minimumsample size is recommended because pelleted carbon blackstend to stratify.When sampling directly from an individualbag,the mass removed must be small enough that it does notadversely affect the final mass remaining in the bag to renderit unsuitable for use.NOTE2Pellet quality tests may be erroneous due to a local or spotty1This 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 June 1,2014.Published November 2014.Originallyapproved in 1960.Last previous edition approved in 2008 as D1799 03a(2008).DOI:10.1520/D1799-03AR14.2For 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 States1 condition unless the samples are blended through the sample splitter asdescribed in Practice D5817.6.Sample Preparation and Handling6.1 Store the samples in airtight containers until the tests a