ASTM D1510-07a
(Test Method)Standard Test Method for Carbon Black-Iodine Adsorption Number
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 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 8 ) when target values cannot be obtained.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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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Designation:D1510–07a
Standard Test Method for
1
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 Standards in the Rubber and Carbon Black Manufacturing
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 iodine adsorption number of carbon black has been
pressed as a fraction of the total mass of black.
shown to decrease with sample aging. New SRB HT Iodine
Standards have been produced that exhibit stable iodine
4. Significance and Use
number upon aging. These SRB HT Iodine Standards are
4.1 Theiodineadsorptionnumberisusefulincharacterizing
recommended for daily monitoring (x-charts) of testing and for
carbon blacks. It is related to the surface area of carbon blacks
standardization of iodine testing (see Section 8) when target
and is generally in agreement with nitrogen surface area. The
values cannot be obtained.
presence of volatiles, surface porosity, or extractables will
1.3 The values stated in SI units are to be regarded as the
influence the iodine adsorption number.Aging of carbon black
standard. The values given in parentheses are for information
can also influence the iodine number.
only.
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.
D 4483 Practice for Evaluating Precision for Test Method
5.5 Balance, analytical, with 0.1-mg sensitivity.
5.6 Centrifuge, with minimum speed of 105 rad/s (1000 r/
min).
1
3
This test method is under the jurisdiction ofASTM Committee D24 on Carbon
5.7 VolumetricFlask, 2000-cm with standard taper stopper.
Black and is the direct responsibility of Subcommittee D24.21 on Carbon Black
5.8 Funnel, large diameter, with standard taper joint to fit
Surface Area and Related Properties.
3
the 2000-cm flask.
Current edition approved Nov. 1, 2007. Published December 2007. Originally
3
approved in 1957. Last previous edition approved in 2007 as D 1510 – 07.
5.9 Glass Bottle, amber, 2000-cm , with standard taper
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
stopper.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
5.10 Glass Jug, approximate capacity 20-dm .
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 5.11 Stirrer, approximately 300 by 300 mm for mixing.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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D1510–07a
3
5.12 Stirrer, approximately 100 by 100 mm for titrating. 7.2.3 Measure approximately 5 cm of 10 % sulfuric acid
5.13 Desiccator. into a small graduated cylinder and add to the iodate/iodide
solution.
5.14 Miscellaneous Class A Glassware, and equipment
7.2.4 Cap immediately and mix thoroughly.
necessary to carry out the test as written.
7.2.5 Titrate
...
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:D1510–07 Designation:D1510–07a
Standard Test Method for
1
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
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 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 8) when target values cannot be
obtained.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D 1799 Practice for Carbon BlackSampling Packaged Shipments
D 1900 Practice for Carbon BlackSampling Bulk Shipments
D 4483 Practice for Evaluating Precision for Test Method Standards in the Rubber and Carbon Black Manufacturing Industries
D 4821 Guide for Carbon BlackValidation of Test Method Precision and Bias
3. Summary of Test Method
3.1 A weighed sample of carbon black is treated with a portion of standard iodine solution and the mixture shaken and
centrifuged. The excess iodine is then titrated with standard sodium thiosulfate solution, and the adsorbed iodine is expressed as
a fraction of the total mass of black.
4. Significance and Use
4.1 The iodine adsorption number is useful in characterizing carbon blacks. It is related to the surface area of carbon blacks and
is generally in agreement with nitrogen surface area. The presence of volatiles, surface porosity, or extractables will influence the
iodine adsorption number. Aging of carbon black can also influence the iodine number.
5. Apparatus
3
5.1 Vials, glass, optically clear type, with polyethylene stoppers, 45 cm .
5.2 Gravity Convection Drying Oven , capable of maintaining 125 6 5°C.
5.3 Buret, either of the following may be used:
3 3
5.3.1 Digital Buret, 25-cm capacity, with 0.01-cm increment counter and zero reset control, or
3 3
5.3.2 Buret, glass 25-cm , Class A, side-arm filling, graduated in 0.05 cm and with automatic zero.
3 3
5.4 Repetitive Dispenser, 25-cm capacity, 60.1% reproducibility and calibrated to within 60.03-cm accuracy.
1
This test method is under the jurisdiction ofASTM Committee D24 on Carbon Black and is the direct responsibility of Subcommittee D24.21 on Carbon Black Surface
Area and Related Properties.
Current edition approved JulyNov. 1, 2007. Published JulyDecember 2007. Originally approved in 1957. Last previous edition approved in 20062007 as
D1510–06a.D 1510 – 07.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. ForAnnualBookofASTMStandards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D1510–07a
5.5 Balance, analytical, with 0.1-mg sensitivity.
5.6 Centrifuge, with minimum speed of 105 rad/s (1000 r/min).
3
5.7 Volumetric Flask, 2000-cm with standard taper stopper.
3
5.8 Funnel, large diameter, with standard taper joint to fit the 2000-cm flask.
3
5.9 Glass Bottle, amber, 2000-cm , with standard taper stopper.
3
5.10 Glass Jug, approximate capacity 20-dm .
5.11 Stirrer, approximately 300 by 300 mm for mixing.
5.12 Stirrer, approximately 100 by 100 mm for titrat
...
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