1、Designation: D1513 051Standard 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 pare
2、ntheses 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.1NOTETable 1 revised editorially in April 2010.1. Scope1.1 This test method cove
3、rs 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
4、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 Carbo
5、n 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
6、 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 e
7、stimating 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 5mm(46 0.2 in.) indiameter is acceptable.NOTE 1A satisfactory container can be made by pouring 100
8、0 or 624cm3of water at 20C into a 1000 or 1200-cm3stainless steel beaker 1006 5mm(46 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 sensitivi
9、ty 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
10、 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
11、.1 Using a 1000-cm3container:D 5 W1000(1)8.1.2 Using a 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 May 1, 2005. Published May 2005.
12、Originallyapproved in 1957. Last previous edition approved in 2004 as D1513 04. DOI:10.1520/D1513-05E01.2For 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 standard
13、s Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.D 5 W6243 16!/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-
14、cm3container.8.2 Density to the nearest lb/ft3can be calculated as follows:8.2.1 Using a 1000-cm3container:d 5 D/16 5 W1000/16 (3)8.2.2 Using a 624-cm3container:d 5 D/16 5 W624/10 (4)where:d = pour density, lb/ft3,D = pour density, kg/m3,W624= mass of carbon black, g in 624-cm3container,andW1000= ma
15、ss 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 Bias10.1 This precision and bias section has been prepared inaccordance with Practi
16、ce 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 witho
17、ut 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 labor
18、atories testedthree carbon blacks (Materials A, B, and C) twice on twodifferent days. A test result is the value obtained from a singledetermination. Acceptable difference values were not mea-sured.10.4 The results of the precision calculations are given inTable 1, with the materials arranged in asc
19、ending “mean level”order.10.5 The precision for the pooled values for pour densitymay be expressed as follows:10.5.1 RepeatabilityThe repeatability, (r), of the pourdensity has been established as 1.7 % (pooled). Two single testresults (or determinations) that differ by more than 1.7 % mustbe consid
20、ered suspect and dictate that some appropriate inves-tigative action be taken.10.5.2 ReproducibilityThe reproducibility, (R),ofthepour density has been established as 3.7 % (pooled). Twosingle test results (or determinations) produced in separatelaboratories that differ by more than 3.7 % must be co
21、nsideredsuspect and dictate that some appropriate investigative ortechnical/commercial action be taken.10.6 BiasIn test method terminology, bias is the differ-ence between an average test value and the reference (true) testproperty value. Reference values do not exist for this testmethod since the v
22、alue or level of the test property isexclusively defined by the test method. Bias, therefore, cannotbe determined.11. Keywords11.1 carbon black; estimating mass of bulk shipments; massto volume relationships; pelleted carbon black; pour densityTABLE 1 Test Method PrecisionType 1: Pour DensityMateria
23、lMean Levelkg/m3(lb/ft3)Within LaboratoryABetween LaboratoryASrr (r) SRR (R)C 380 (23.8) 2.8 (0.18) 7.9 (0.50) 2.1 4.5 (0.28) 12.9 (0.80) 3.4B 434 (27.1) 2.2 (0.14) 6.2 (0.39) 1.4 6.3 (0.39) 17.7 (1.11) 4.1A 540 (33.7) 3.3 (0.20) 9.2 (0.57) 1.7 6.5 (0.41) 18.5 (1.16) 3.4Pooled orAverage values452 (2
24、8.2) 2.8 (0.17) 7.9 (0.50) 1.7 5.9 (0.39) 16.6 (1.03) 3.7ASymbols are defined as follows:Sr= within laboratory standard deviationr = repeatability in measurement units, kg/m3(lb/ft3)(r) = repeatability in percentSR= between laboratory standard deviationR = reproducibility in measurement units, kg/m3
25、(lb/ft3)(R) = reproducibility in percentD1513 0512ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent right
26、s, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for r
27、evision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing y
28、ou shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).D1513 0513
