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ASTM D5230-04e1

(Test Method)

Standard Test Method for Carbon Black—Automated Individual Pellet Hardness

Standard Test Method for Carbon Black—Automated Individual Pellet Hardness

SCOPE
1.1 This test method covers a procedure for measuring individual pellet hardness of carbon black by the automated pellet hardness tester.
1.2 The values stated in SI units are to be regarded as the standard. The values 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-Dec-2003
ICS
83.040.20 - Rubber compounding ingredients
Technical Committee
D24 - Carbon Black
Drafting Committee
D24.51 - Carbon Black Pellet Properties
Current Stage
Ref Project

Relations

Replaces
ASTM D5230-04 - Standard Test Method for Carbon Black—Automated Individual Pellet Hardness
Effective Date
01-Jan-2004
Replaced By
ASTM D5230-05 - Standard Test Method for Carbon Black—Automated Individual Pellet Hardness
Effective Date
01-Dec-2005
Referred By
ASTM D8466-22 - Standard Guide for Recovered Carbon Black—Carbon Black Test Methods for Testing rCB
Effective Date
01-Jan-2004
Referred By
ASTM D4122-17(2023) - Standard Practice for Carbon Black—Evaluation of an Industry Reference Black
Effective Date
01-Jan-2004
Referred By
ASTM D5817-20 - Standard Practice for Carbon Black, Pelleted—Reduction, Blending, and Drying of Gross Samples for Testing
Effective Date
01-Jan-2004
Referred By
ASTM D3053-23 - Standard Terminology Relating to Carbon Black
Effective Date
01-Jan-2004

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ASTM D5230-04e1 - Standard Test Method for Carbon Black—Automated Individual Pellet HardnessASTM D5230-04e1 - Standard Test Method for Carbon Black—Automated Individual Pellet Hardness
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ASTM D5230-04e1 - Standard Test Method for Carbon Black—Automated Individual Pellet Hardness
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
e1
Designation:D5230–04
Standard Test Method for
1
Carbon Black—Automated Individual Pellet Hardness
This standard is issued under the fixed designation D 5230; 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.
1
e NOTE—Footnote 2 was revised editorially in November 2004.
1. Scope from this portion are selected and placed into the tester. The
individual pellets are pressed against a platen with a load cell
1.1 This test method covers a procedure for measuring
formeasuringforce.Aspressureisappliedthepelletwilleither
individual pellet hardness of carbon black by the automated
2 break with a rapid force reduction or the pellet will simply
pellet hardness tester.
compress.Theindividualpellethardnessisthemaximumforce
1.2 The values stated in SI units are to be regarded as the
priortoaforcereductionofatleast3cNorthemaximumforce
standard. The values in parentheses are for information only.
required to compress the pellet to 90 %, whichever comes first.
1.3 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 Individual pellet hardness is related to several carbon
priate safety and health practices and determine the applica-
black characteristics. Among these are mass strength and
bility of regulatory limitations prior to use.
attrition. The subsequent level of dispersion obtained in some
2. Referenced Documents mixed compounds containing the carbon black may be affected
3
by pellet hardness. Acceptable pellet hardness must be agreed
2.1 ASTM Standards:
to by the user and the producer.
D 1511 Test Method for Carbon Black—Pellet Size Distri-
bution
5. Apparatus
D 1799 Practice for Carbon Black—Sampling Packaged
2
5.1 Automated Pellet Hardness Tester, capable of achiev-
Shipments
ing an absolute measuring accuracy of 62 cN (2 gf) for the
D 1900 Practice for Carbon Black—Sampling Bulk Ship-
force measurement and 60.1 mm for the diameter measure-
ments
ment and a relative accuracy of 60.5 cN (0.5 gf) for the force
D 4483 Practice for Determining Precision for Test Method
measurement and 0.02 mm for the diameter measurement and
Standards in the Rubber and Carbon Black Industries
consisting of the following major components and character-
E 11 Specification for Wire Cloth and Sieves for Testing
istics.
Purposes
5.1.1 A means for automatic loading of a pellet on the
3. Summary of Test Method transport platen for transporting the pellet so as to contact the
second platen with a minimum force. Typically one platen
3.1 A sample of carbon black is passed through two sieves
contains a force measuring device.The required force to detect
to isolate a fraction of uniform size. The most spherical pellets
the contact shall not exceed 2 cN (2 gf),
5.1.2 A means for applying the force at a constant rate,
1
This test method is under the jurisdiction ofASTM Committee D24 on Carbon
5.1.3 A means for transporting the pellet so to minimize its
Black and is the direct responsibility of Subcommittee D24.51 on Carbon Black
movement during the application of force.
Pellet Properties.
5.1.4 A means for measuring the diameter of the individual
Current edition approved Jan. 1, 2004. Published February 2004. Originally
approved in 1992. Last previous edition approved in 2003 as D 5230 – 03.
pellet under test as measured along the axis of the application
2
The sole source of supply of the apparatus known to the committee at this time
of force.
is the Concarb Titan Automated Pellet Hardness Tester, available from Titan
5.1.5 A control device for directing the instrument through
Specialties, Inc., P.O. Box 2316, Pampa, TX 79065, E-mail:
sales@titanspecialties.com. The HITEC IPHT is available from HITEC Luxem-
the test cycle that includes crushing the pellet under controlled
bourg, 5 rue de L’ Eglise, L-1458, Luxembourg, E-mail: info@hitec.lu. If you are
conditions, measuring and storing the results of the initial
aware of alternative suppliers, please provide this information to ASTM Interna-
diameter and crush force determinations, cleaning the frag-
tional Headquarters.Your comments will receive careful consideration at a meeting
2
of the responsible technical committee, which you may attend. ments from the platen surfaces, and starting the next cycle.
3
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
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
...

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