ASTM D1508-02e2
(Test Method)Standard Test Method for Carbon Black, Pelleted Fines and Attrition
Standard Test Method for Carbon Black, Pelleted Fines and Attrition
SCOPE
1.1 This test method covers the determination of the fines and attrition of pelleted carbon black.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation:D1508–02
Standard Test Method for
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Carbon Black, Pelleted Fines and Attrition
This standard is issued under the fixed designation D 1508; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
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e NOTE—Paragraph 7.1.4 was editorially updated in December 2002.
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e NOTE—Footnote 3 was editorially updated in December 2004.
1. Scope 3.2 MethodB,Attrition—Thesametestsampleisshakenfor
an additional 15 min to determine the amount of pellet
1.1 This test method covers the determination of the fines
degradation or attrition created during this additional shake
and attrition of pelleted carbon black.
interval. The attrition is expressed in percent.
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Significance and Use
responsibility of the user of this standard to establish appro-
4.1 Method A, Fines—The fines content of carbon black is
priate safety and health practices and determine the applica-
related to the bulk flowability, dustiness, and, in some in-
bility of regulatory limitations prior to use.
stances, the level of dispersion. Due to the many other
2. Referenced Documents variables that influence dispersion and handling, the signifi-
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cance of fines content must be determined by the user.
2.1 ASTM Standards:
4.2 Method B, Attrition—By comparing the percent fines
D 1511 Test Method for Carbon Black—Pellet Size Distri-
and attrition, an indication can be obtained of pellet stability
bution
and the amount of fines that may be created by pellet
D 1799 Practice for Carbon Black—Sampling Packaged
degradation in conveying, handling or transit.
Shipments
D 1900 Practice for Carbon Black—Sampling Bulk Ship-
5. Apparatus
ments
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5.1 Mechanical or Vibratory Sieve Shaker.
D 4483 Practice for Determining Precision for Test Method
5.2 Sieves, six 125-µm (U.S. Standard No. 120) having a
Standards in the Rubber and Carbon Black Industries
200-mm (8-in.) diameter and 25-mm (1-in.) height, or equiva-
D 5817 Pelleted Carbon Black—Practice for Reducing and
lent, conforming to SpecificationE11.
Blending Gross Samples of Carbon Black
5.3 Sieve Separator Receivers, five required.
E11 Specification for Wire Cloth and Sieves for Testing
5.4 Sieve Cover.
Purposes
5.5 Bottom Receiver Pan.
3. Summary of Test Method 5.6 Riffle Sample Splitter.
5.7 Small Scoop or Large Spoon.
3.1 Method A, Fines—A sample of carbon black is placed
5.8 Balance, 0.1-g sensitivity.
on a 125-µm sieve and shaken in a mechanical or vibratory
sieve shaker for 5 min. The pellets, pellet fragments, dust, and
6. Sampling
unpelletized black that pass through the sieve are defined as
6.1 Samples shall be taken in accordance with Practice
carbon black fines. The fines are expressed in percent.
D 1799 or Test Method D 1900.
6.2 Practice D 5817 shall be used for reduction and blend-
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ing of samples.
This test method is under the jurisdiction ofASTM Committee D24 on Carbon
Black and is the direct responsibility of Subcommittee D24.51 on Carbon Black
Pellet Properties. 7. Procedure
Current edition approved Nov. 10, 2002. Published December 2002. Originally
7.1 Method A, Fines and Method B, Attrition:
approved in 1957. Last previous edition approved in 2001 as D 1508–01.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
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Standards volume information, refer to the standard’s Document Summary page on A Ro–Tap or vibratory sieve shaker is satisfactory for this purpose. For a
the ASTM website. description of these refer to Test Method D 1511.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D1508–02
7.1.1 Stack up to six sets of sieves and receivers with a
F = fines content, %,
receiver beneath each sieve.
WF = massofcarbonblackinreceiverafter5minshake,g,
7.1.2 Weigh 25.0 g portions, being careful to dip approxi-
WA = mass of carbon black in receiver after additional 15
mately 25 g of black from the riffle splitter. min shake, total 20 min g, and
S = mass of black tested, g.
NOTE 1—It is not good practice to weigh the sample by pouring it
directly out of the black container since the fines and smaller pellets will
9. Report
tend to remain in the container while the larger pellets pour out first.
9.1 Report the following information:
Dipping the black from the container is the preferred technique.
9.1.1 Proper identification of the sample.
7.1.3 Transfer each sample to an individu
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