ASTM_D_1513_-_05_2012.pdf

Designation:D151305(Reapproved 2012)Standard Test Method forCarbon Black,PelletedPour Density1This standard is issued under the fixed designation D1513;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 Department of Defense.1.Scope1.1 This test method covers the determination of the pourdensity of pelleted carbon blacks.1.2 The values stated in SI units are to be regarded as thestandard.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 and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D1799 Practice for Carbon BlackSampling PackagedShipmentsD1900 Practice for Carbon BlackSampling Bulk Ship-mentsD4483 Practice for Evaluating Precision for Test MethodStandards in the Rubber and Carbon Black ManufacturingIndustries3.Summary of Test Method3.1 Pour density is determined by measuring the mass ofcarbon black in a known volume.4.Significance and Use4.1 Pour density is a function of the degree of compactionduring pelletization.It is strongly influenced by and inverselyproportional to structure(OAN).Pour density of carbon blackis useful for estimating the weight-to-volume relationship forcertain applications,such as automatic batch loading systems,and for estimating weights of bulk shipments.5.Apparatus5.1 Cylindrical Container,1000 or 624-cm3capacity,hav-ing a uniform height and no pouring lip or deformation of thewall.A stainless steel beaker 100 6 5 mm(4 6 0.2 in.)indiameter is acceptable.NOTE1A satisfactory container can be made by pouring 1000 or 624cm3of water at 20C into a 1000 or 1200-cm3stainless steel beaker 1006 5 mm(4 6 0.2 in.)in diameter,marking the water level and then cuttingat the mark after chucking firmly in a lathe.5.2 Straightedge or Spatula,at least 150 mm(6 in.)inlength.5.3 Balance,torsion or trip,with a sensitivity of 0.1 g.6.Sampling6.1 Samples shall be taken in accordance with PracticeD1799 or Practice D1900.7.Procedure7.1 Pour the carbon black into the center of the taredcontainer from a height not more than 50 mm(2 in.)above therim.A large enough excess should be used to form a coneabove the rim of the cylindrical container.Level the surfacewith a single sweep of the straightedge or spatula heldperpendicular to and in firm contact with the lip of thecontainer.Record the mass of the carbon black to the nearestgram.8.Calculation8.1 Calculate the pour density to the nearest kg/m3asfollows:8.1.1 Using a 1000-cm3container:D 5 W1000(1)8.1.2 Using a 624-cm3container:D 5W624316!/10(2)where:D=pour density,kg/m3,W1000=mass of carbon black,g in 1000-cm3container,andW624=mass of carbon black,g in 624-cm3container.1This test method is under the jurisdiction of ASTM Committee D24 on CarbonBlack and is the direct responsibility of Subcommittee D24.51 on Carbon BlackPellet Properties.Current edition approved June 1,2012.Published November 2012.Originallyapproved in 1957.Last previous edition approved in 2005 as D1513 052.DOI:10.1520/D1513-05R12.2For 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 8.2 Density to the nearest lb/ft3can be calculated as follows:8.2.1 Using a 1000-cm3container:d 5 D/165 W1000/16(3)8.2.2 Using a 624-cm3container:d 5 D/165 W624/10(4)where:d=pour density,lb/ft3,D=pour density,kg/m3,W624=mass of carbon black,g in 624-cm3container,andW1000=mass of carbon black,g in 1000-cm3container.9.Report9.1 Report the following information:9.1.1 Proper identification of the sample,and9.1.2 Result obtained,reported to the nearest kg/m3(0.1lb/ft3).10.Precision and Bias310.1 This precision and bias section has been prepared inaccordance with Practice D4483.Refer to Practice D4483 forterminology and other statistical details.10.2 PrecisionThe precision results in this section give anestimate of the precision as described in 10.3-10.5.2.Theprecision parameters should not be used for acceptance/rejection testing of any group of materials without documen-tation that they are applicable to those particular materials andthe specific testing protocols that include this test method.10.3 A Type 1 interlaboratory precision program was con-ducted in 1994.Both repeatability and reproducibility repre-sent short-term testing conditions.Nine laboratories t