Standard Test Method for Carbon Black—Iodine Adsorption Number

SCOPE
1.1 This test method covers the determination of the iodine adsorption number of carbon black.
1.1.1 Procedure A is the original procedure for this determination.
1.1.2 Procedure B specifies an increased sample mass of carbon black and volume of iodine solution (the ratio is the same as in Procedure A) which results in a simplified formula for the calculation of the iodine number.
1.2 &si-value;
1.3 The iodine adsorption number of carbon black has been shown to decrease with sample aging. New SRB HT Iodine Standards have been produced that exhibit stable iodine number upon aging. These SRB HT Iodine Standards are recommended for daily monitoring (x-charts) of testing and for standardization of iodine testing (see Section 10) when target values cannot be obtained.
1.4 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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Publication Date
30-Jun-2005
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ASTM D1510-05 - Standard Test Method for Carbon Black—Iodine Adsorption Number
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D1510–05
Standard Test Method for
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Carbon Black—Iodine Adsorption Number
This standard is issued under the fixed designation D 1510; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope D 4483 Practice for Determining Precision for Test Method
Standards in the Rubber and Carbon Black Industries
1.1 This test method covers the determination of the iodine
D 4821 Guide for Carbon Black—Validation of Test
adsorption number of carbon black.
Method Precision and Bias
1.1.1 Procedure A is the original procedure for this deter-
mination.
3. Summary of Test Method
1.1.2 Procedure B specifies an increased sample mass of
3.1 A weighed sample of carbon black is treated with a
carbon black and volume of iodine solution (the ratio is the
portion of standard iodine solution and the mixture shaken and
same as in Procedure A) which results in a simplified formula
centrifuged. The excess iodine is then titrated with standard
for the calculation of the iodine number.
sodium thiosulfate solution, and the adsorbed iodine is ex-
1.2 The values stated in SI units are to be regarded as the
pressed as a fraction of the total mass of black.
standard. The values given in parentheses are for information
only.
4. Significance and Use
1.3 The iodine adsorption number of carbon black has been
4.1 Theiodineadsorptionnumberisusefulincharacterizing
shown to decrease with sample aging. New SRB HT Iodine
carbon blacks. It is related to the surface area of carbon blacks
Standards have been produced that exhibit stable iodine
and is generally in agreement with nitrogen surface area. The
number upon aging. These SRB HT Iodine Standards are
presence of volatiles, surface porosity, or extractables will
recommended for daily monitoring (x-charts) of testing and for
influence the iodine adsorption number.Aging of carbon black
standardization of iodine testing (see Section 10) when target
can also influence the iodine number.
values cannot be obtained.
1.4 This standard does not purport to address all of the
5. Apparatus
safety concerns, if any, associated with its use. It is the
5.1 Vials, glass, optically clear type, with polyethylene
responsibility of the user of this standard to establish appro-
3
stoppers, 45 cm .
priate safety and health practices and determine the applica-
5.2 Gravity Convection Drying Oven, capable of maintain-
bility of regulatory limitations prior to use.
ing 125 6 5°C.
5.3 Buret, either of the following may be used:
2. Referenced Documents
3 3
2 5.3.1 Digital Buret, 25-cm capacity, with 0.01-cm incre-
2.1 ASTM Standards:
ment counter and zero reset control, or
D 1799 Practice for Carbon Black—Sampling Packaged
3
5.3.2 Buret, glass 25-cm , Class A, side-arm filling, gradu-
Shipments
3
ated in 0.05 cm and with automatic zero.
D 1900 Practice for Carbon Black—Sampling Bulk Ship-
3
5.4 Repetitive Dispenser, 25-cm capacity, 60.1% repro-
ments
3
ducibility and calibrated to within 60.03-cm accuracy.
5.5 Balance, analytical, with 0.1-mg sensitivity.
5.6 Centrifuge, with minimum speed of 105 rad/s (1000 r/
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This test method is under the jurisdiction ofASTM Committee D24 on Carbon
min).
Black and is the direct responsibility of Subcommittee D24.21 on Adsorptive
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5.7 VolumetricFlask, 2000-cm with standard taper stopper.
Properties of Carbon Black.
5.8 Funnel, large diameter, with standard taper joint to fit
Current edition approved July 1, 2005. Published August 2005. Originally
3
approved in 1957. Last previous edition approved in 2003 as D 1510–03.
the 2000-cm flask.
2
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.9 Glass Bottle, amber, 2000-cm , with standard taper
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
stopper.
Standards volume information, refer to the standard’s Document Summary page on
3
the ASTM website. 5.10 Glass Jug, approximate capacity 20-dm .
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D1510–05
5.11 Stirrer, approximately 300 by 300 mm for mixing. 9.1.6.6 Wash the tip and walls of the flask with water, then
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5.12 Stirrer, approximately 100 by 100 mm for titrating. advance the counter in 0.01-cm increments. Continue this
5.13 Desiccator. sequence until the endpoint is reached as indicated by a
5.14 Miscellaneous Class A Glassware, and equipment colorless solution.
necessary to carry out the test as written.
9.1.6.7 Record th
...

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