ASTM D3313-12

Standard Test Method for Carbon Black—Individual Pellet Hardness

SIGNIFICANCE AND USE
4.1 Pellet hardness is related to several carbon black characteristics. Among these are mass strength and attrition. The subsequent level of dispersion obtained in some mixed compounds containing the carbon black may be affected by pellet hardness. Acceptable pellet hardness must be agreed to by the user and the producer.Note 1—Test Method D5230 is the preferred standard for testing of individual pellet hardness. It is recognized that Test Method D3313 relies on operator judgement, thus adding an additional source of variation for this test.
SCOPE
1.1 This test method covers a method for measuring the hardness of individual pellets 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

• Status: Historical
• Publication Date: 31-May-2012
• ICS: 83.040.20 - Rubber compounding ingredients
• Technical Committee: D24 - Carbon Black
• Drafting Committee: D24.51 - Carbon Black Pellet Properties

Relations

• Replaces: ASTM D3313-05a - Standard Test Method for Carbon Black—Individual Pellet Hardness
• Effective Date: 01-Jun-2012
• Replaced By: ASTM D3313-12e1 - Standard Test Method for Carbon Black—Individual Pellet Hardness (Withdrawn 2017)
• Effective Date: 01-Jun-2012

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D3313 − 12
StandardTest Method for
1
Carbon Black—Individual Pellet Hardness
This standard is issued under the fixed designation D3313; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Significance and Use
1.1 This test method covers a method for measuring the 4.1 Pellet hardness is related to several carbon black char-
hardness of individual pellets of carbon black. acteristics. Among these are mass strength and attrition. The
subsequent level of dispersion obtained in some mixed com-
1.2 The values stated in SI units are to be regarded as the
pounds containing the carbon black may be affected by pellet
standard. The values given in parentheses are for information
hardness.Acceptable pellet hardness must be agreed to by the
only.
user and the producer.
1.3 This standard does not purport to address all of the
NOTE 1—Test Method D5230 is the preferred standard for testing of
safety concerns, if any, associated with its use. It is the
individual pellet hardness. It is recognized that Test Method D3313 relies
responsibility of the user of this standard to establish appro-
on operator judgement, thus adding an additional source of variation for
priate safety and health practices and determine the applica-
this test.
bility of regulatory limitations prior to use.
5. Apparatus
2. Referenced Documents
3
5.1 Pellet-Hardness Tester, of a type capable of measuring
2
2.1 ASTM Standards:
the pellet hardness of the individual pellet in grams-force
D1511Test Method for Carbon Black—Pellet Size Distri-
(centinewtons). A suitable tester must exhibit the following
bution
characteristics:
D1799Practice for Carbon Black—Sampling Packaged
5.1.1 Initial contact force must be applied so that the force
Shipments
area rests lightly on the pellet before proceeding,
D1900Practice for Carbon Black—Sampling Bulk Ship-
5.1.2 Itmustbecapableofapplyingforceataconstantrate,
ments
5.1.3 It must possess an accurate means of measuring the
D4483Practice for Evaluating Precision for Test Method
applied force, and
StandardsintheRubberandCarbonBlackManufacturing
5.1.4 During the test, the applied force and base plate must
Industries
be controlled so as not to cause the pellet to move or roll prior
D5230Test Method for Carbon Black—Automated Indi-
to crushing.
vidual Pellet Hardness
NOTE 2—A two-pan torsion balance with 100-g dial and transparent
E11Specification forWovenWireTest Sieve Cloth andTest
foot mounted so it can be moved directly over the pellet will serve to
Sieves
convert a balance to a pellet hardness tester, as needed.
3. Summary of Test Method 5.2 Mechanical Sieve Shaker, conforming to Test Method
D1511.
3.1 A sample of carbon black is passed through two sieves
to isolate a fraction of uniform size.The most spherical pellets 5.3 Sieves—U.S. Standard sieves or equivalents, conform-
from this portion are selected and brought into contact with a
ing to Specification E11. Sieve Nos. 12 (1700-µm) and 14
measuring device as force is applied. Pellet hardness is the (1400-µm) shall be used.
maximum force required to crush the pellets.
5.4 Bottom-Receiver Pan and Top-Sieve Cover.
1
This test method is under the jurisdiction ofASTM Committee D24 on Carbon
3
Black and is the direct responsibility of Subcommittee D24.51 on Carbon Black The sole source of supply of the apparatus (the HITEC IPHT) known to the
Pellet Properties. committee at this time is HITEC Luxembourg, 5 rue de L’Eglise, L-1458,
Current edition approved June 1, 2012. Published September 2012. Originally Luxembourg, E-mail: [e-mail], http://www.hitec.lu/. (Some Model-S Pellet
approved in 1974. Last previous edition approved in 2005 as D3313–05a. DOI: Strength Testers with lab jack may still be in use and are suitable. This unit was in
10.1520/D3313-12. the past available fromA. L. Sweigart, Technical Service Shop, 1206 Hemlock St.,
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Borger, TX 79007.) If you are aware of alternative suppliers, please provide this
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM information to ASTM International Headquarters. Your comments will receive
1
Standards volume information, refer to the standard’s Document Summary page on careful consideration at a meeting of the responsible technical committee, which
the ASTM website. you may attend.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D3313 − 12
5.5 Container, shallow, flat approximate
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D3313 − 05a D3313 − 12
Standard Test Method for
1
Carbon Black—Individual Pellet Hardness
This standard is issued under the fixed designation D3313; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method covers a method for measuring the hardness of individual pellets 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D1511 Test Method for Carbon Black—Pellet Size Distribution
D1799 Practice for Carbon Black—Sampling Packaged Shipments
D1900 Practice for Carbon Black—Sampling Bulk Shipments
D4483 Practice for Evaluating Precision for Test Method Standards in the Rubber and Carbon Black Manufacturing Industries
D5230 Test Method for Carbon Black—Automated Individual Pellet Hardness
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
3. Summary of Test Method
3.1 A sample of carbon black is passed through two sieves to isolate a fraction of uniform size. The most spherical pellets from
this portion are selected and brought into contact with a measuring device as force is applied. Pellet hardness is the maximum force
required to crush the pellets.
4. Significance and Use
4.1 Pellet hardness is related to several carbon black characteristics. Among these are mass strength and attrition. The
subsequent level of dispersion obtained in some mixed compounds containing the carbon black may be affected by pellet hardness.
Acceptable pellet hardness must be agreed to by the user and the producer.
NOTE 1—Test Method D5230 is the preferred standard for testing of individual pellet hardness. It is recognized that Test Method D3313 relies on
operator judgement, thus adding an additional source of variation for this test.
5. Apparatus
3
5.1 Pellet-Hardness Tester, of a type capable of measuring the pellet hardness of the individual pellet in grams-force
(centinewtons). A suitable tester must exhibit the following characteristics:
5.1 Initial contact force must be applied so that the force area rests lightly on the pellet before proceeding,
5.1 It must be capable of applying force at a constant rate,
1
This test method is under the jurisdiction of ASTM Committee D24 on Carbon Black and is the direct responsibility of Subcommittee D24.51 on Carbon Black Pellet
Properties.
Current edition approved Dec. 1, 2005June 1, 2012. Published January 2006September 2012. Originally approved in 1974. Last previous edition approved in 2005 as
D3313 – 05.D3313 – 05a. DOI: 10.1520/D3313-05A.10.1520/D3313-12.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The sole source of supply of the pellet-hardness tester (Model-S Pellet Strength Tester with lab jack) apparatus (the HITEC IPHT) known to the committee at this time
is HITEC Luxembourg, 5 rue de L’Eglise, L-1458, Luxembourg, E-mail: [e-mail], http://www.hitec.lu/. (Some Model-S Pellet Strength Testers with lab jack may still
be in use and are suitable. This unit was in the past available from A. L. Sweigart, Technical Service Shop, 1206 Hemlock St., Borger, TX 79007.79007.) If you are aware
of alternative suppliers, please provide this information to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the responsible
1
technical committee, which you may attend.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D3313 − 12
5.1 It must possess an accurate means of measuring the applied force, and
5.1 During the test, the applied force and base plate must be controlled so as not to cause the pellet to move or roll prior to
crushing.
NOTE 2—A two-pan torsion balance with 100-g
...