ASTM D1511-00
(Test Method)Standard Test Method for Carbon Black-Pellet Size Distribution
Standard Test Method for Carbon Black-Pellet Size Distribution
SCOPE
1.1 This test method covers the determination of the pellet size distribution of carbon black.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
Designation:D1511–00
Standard Test Method for
Carbon Black—Pellet Size Distribution
This standard is issued under the fixed designation D 1511; 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 (ϵ) indicates an editorial change since the last revision or reapproval.
1. Scope having openings respectively of 2000, 1000, 500, 250, and 125
µm, shall be used. The sieves shall be 25 mm (1 in.) in height
1.1 This test method covers the determination of the pellet
and 200 mm (8 in.) in diameter.
size distribution of carbon black.
4.4 Bottom receiver pan and top sieve cover.
1.2 The values stated in SI units are to be regarded as the
4.5 SieveShaker—Anyequipmentthatwillvibrateorshake
standard. The values given in parentheses are for information
a stack of sieves in a manner that will allow the pellets to
only.
separate into size fractions without excessive pellet breakage.
1.3 This standard does not purport to address all of the
The following three types of shakers have been found satis-
safety concerns, if any, associated with its use. It is the
factory for determining the pellet size distribution of pelleted
responsibility of the user of this standard to establish appro-
carbon black.
priate safety and health practices and determine the applica-
4.5.1 Mechanical Sieve Shaker —The Ro-Tap Siever im-
bility of regulatory limitations prior to use.
parts a uniform rotary and tapping motion to a stack of sieves
2. Referenced Documents
as described in 4.3. The shaker machine shall be powered with
an electric motor producing 181 to 183 rads/s (1725–1750
2.1 ASTM Standards:
r/min). This will produce 140 to 160 raps/min and 280 to 320
D 1799 Practice for Carbon Black—Sampling Packaged
rotary motions/min. The cover plate shall be fitted with a cork
Shipments
1 3
stopper that shall extend 3–9 mm ( ⁄8 to ⁄8 in.) above the metal
D 1900 Practice for Carbon Black—Sampling Bulk Ship-
recess. Materials other than cork, such as rubber or wood, are
ments
unacceptable. The height of the RoTap hammer shall be set at
D 4483 Practice for Determining Precision for Test Method
3.30 cm6 0.15 cm (1–5/16 in6 1/16 in).
Standards in the Rubber and Carbon Black Industries
4.5.2 Vibratory Siever —The Retch/Brinkmann Vibratory
D 5817 Practice for Carbon Black, Pelleted-Reduction and
SieverAS200 has variable timer and amplitude settings. When
Blending of Gross Samples
set at 3 minutes and 0.5 amplitude, the vibratory siever
E11 Specification for Wire-Cloth Sieves for Testing Pur-
provides satisfactory results. The siever accommodates a stack
poses
of sieves as described in 4.3.
3. Significance and Use
4.5.3 Automatic Sieve Shaker —The Gradex 2000 auto-
matically performs all of the required steps including the
3.1 The variation in the size of the pellets may relate to the
weighing of the sample and the individual fractions retained on
levelofdispersionandtotheeaseofhandling.Duetothemany
each sieve. The equipment consists of a balance, autofeed
other variables that influence dispersion and handling, the
system, electric motor that imparts a uniform rotary motion,
significance of pellet size must be determined by the user.
pneumatically operated rods to provide the tapping action, and
4. Apparatus
computer and software to record and perform analyses. Shake
time of 1 minute provides satisfactory test results. The test
4.1 Riffle Sample Splitter as specified in D 5817D 5817.
sieves are described in 4.3.
4.2 Balance with a sensitivity of 0.1 g.
4.3 Sieves—U.S.StandardSievesorequivalent,conforming
NOTE 1—Top sieve cover is not needed for the Gradex 2000.
to Specifications E 11E11. Sieve Nos. 10, 18, 35, 60, and 120,
NOTE 2—The Gradex is supplied with one standard tapping rod. It is
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 The Ro-Tap Siever is available from WS Tyler, 8570 Tyler Blvd., Mentor, OH
Pellet Properties. 44060, Ph. 1-800-321-6188.
Current edition approved Nov. 10, 2000. Published December 2000. Originally The Retsch/Brinkmann Vibratory Siever AS200 is available from Brinkmann
published as D 1511 – 57. Last previous edition D 1511 – 98. Instruments, Inc., One Cantiague Rd., Westbury, NY 11590, Ph. 1-800-645-3050.
2 6
Annual Book of ASTM Standards, Vol 09.01. The Gradex 2000 is available from Rotex, Inc., 1230 Knowlton Street,
Annual Book of ASTM Standards, Vol 14.02. Cincinnati, OH 45223, Ph. 1-513-541-1236.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
D1511–00
recommended that two additional tapping rods be installed to provide
Pan ____________ ____________
additional tapping action.
Total ____________ ____________
5. Sampling 8. Report
5.1 Lot samples shall be taken in accordance with Practices 8.1 Report the following information:
D 1799D 1799 or D 1900D 1900. 8.1.1 Proper identification of the sample,
5.2 Practice D 5817D 5817 shall be used for blending or 8.1.2 Result obtained from a single determination, reported
reducing samples. to the nearest 0.1 %.
8.1.3 Apparatus used to determine test values.
6. Procedure
9. Precision and Bias
6.1 Prepare carbon black for testing as noted in Section 5.
9.1 This precision and bias section has been prepared in
NOTE 3—It is not good practice to weigh out the test portion by pouring
accordance with Practice D 4483D 4483. Refer to Practice
it directly from the sample container since the smaller pellets will tend to
D 4483D 4483 for terminology and other statistical details.
remain in the container while the larger pellets pour out first. Dipping the
black from the container is the preferred technique. 9.2 The precision results in this precision and bias give an
estimate of the precision described as follows. The precision
6.2 Prepare the sieve assembly by stacking the sieves in the
parameters should not be used for acceptance/rejection testing
following order from bottom to top: Bottom receiver pan, No.
of materials without documentation that they are applicable to
120, No. 60, No. 35, No. 18, No. 10, and top sieve cover.
those particular materials and the specific testing protocols that
NOTE 4—Top sieve cover is not needed for the Gradex 2000.
include this test method.
6.3 Mechanical and Vibratory Sieve Shakers 9.3 A Type 1 inter-laboratory precision program was con-
ducted in 1988 to determine the testing precision of three
6.3.1 Weigh 100.0 g of carbon black.
6.3.2 Transfer weighed carbon black to the top sieve. samples (Sample 1, Sample 2, and Sample 3) according to this
test method. Both repeatability and reproducibility represent
6.3.3 Install the sieve cover and transfer the sieve assembly
to the shaker. The stack in the shaker should be adjusted to short term testing conditions. The program was conducted by
seven laboratories testing three samples twice on each of two
eliminate looseness.
6.3.4 Start the shaker and allow it to shake as noted below: different days. A test result is the value obtained from a single
determination. Acceptable differences were not measured.
6.3.4.1 Mechanical Shaker—1 minute with hammer operat-
ing. 9.4 Repeatability— The repeatability, r, of the specific
screen fraction has been established as the value tabulated in
6.3.4.2 Vibratory Shaker—3 minutes and 0.5 mm ampli-
tude. Tables 1-6. Two single test results (or determinations) that
6.3.5 Remove the sieve assembly from the apparatus and differ by more than r must be considered suspect and dictates
that some appropriate investigative action be taken.
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