ASTM D1510-08b
(Test Method)Standard Test Method for Carbon Black—Iodine Adsorption Number
Standard Test Method for Carbon Black<span class='unicode'>—</span>Iodine Adsorption Number
SIGNIFICANCE AND USE
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.
SCOPE
1.1 This test method covers the determination of the iodine adsorption number of carbon black.
1.1.1 Method A is the original test method for this determination and Method B is an alternate test method using automated sample processing and analysis.
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 standard. No other units of measurement are included in this standard.
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:D1510–08b
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 (´) 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 4821 Guide for Carbon Black—Validation of Test
Method Precision and Bias
1.1 This test method covers the determination of the iodine
adsorption number of carbon black.
3. Summary of Test Methods
1.1.1 MethodAis the original test method for this determi-
3.1 In Test Method A, a weighed sample of carbon black is
nation and Method B is an alternate test method using
treated with a portion of standard iodine solution and the
automated sample processing and analysis.
mixture shaken and centrifuged. The excess iodine is then
1.2 The iodine adsorption number of carbon black has been
titrated with standard sodium thiosulfate solution, and the
shown to decrease with sample aging. New SRB HT Iodine
adsorbed iodine is expressed as a fraction of the total mass of
Standards have been produced that exhibit stable iodine
black.
number upon aging. These SRB HT Iodine Standards are
3.2 In Test Method B, a weighed sample of carbon black is
recommended for daily monitoring (x-charts) of testing and for
treated with a portion of standard iodine solution using an
standardization of iodine testing (see Section 8) when target
automated sample processor where the mixture is stirred,
values cannot be obtained.
settled and aliquoted for automatic titration. The excess iodine
1.3 The values stated in SI units are to be regarded as
is titrated with standard sodium thiosulfate solution, and the
standard. No other units of measurement are included in this
adsorbed iodine is expressed as a fraction of the total mass of
standard.
black.
1.4 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 Theiodineadsorptionnumberisusefulincharacterizing
priate safety and health practices and determine the applica-
carbon blacks. It is related to the surface area of carbon blacks
bility of regulatory limitations prior to use.
and is generally in agreement with nitrogen surface area. The
presence of volatiles, surface porosity, or extractables will
2. Referenced Documents
2 influence the iodine adsorption number.Aging of carbon black
2.1 ASTM Standards:
can also influence the iodine number.
D 1799 Practice for Carbon Black—Sampling Packaged
Shipments
5. Apparatus
D 1900 Practice for Carbon Black—Sampling Bulk Ship-
5.1 Vials, glass, optically clear type, with polyethylene
ments
3
stoppers, 45 cm .
D 4483 Practice for Evaluating Precision for Test Method
5.2 Gravity Convection Drying Oven, capable of maintain-
Standards in the Rubber and Carbon Black Manufacturing
ing 125 6 5°C.
Industries
5.3 Buret, either of the following may be used:
3 3
5.3.1 Digital Buret, 25-cm capacity, with 0.01-cm incre-
ment counter and zero reset control, or
1
3
This test method is under the jurisdiction ofASTM Committee D24 on Carbon
5.3.2 Buret, glass 25-cm , Class A, side-arm filling, gradu-
Black and is the direct responsibility of Subcommittee D24.21 on Carbon Black
3
ated in 0.05 cm and with automatic zero.
Surface Area and Related Properties.
3
5.4 Repetitive Dispenser, 25-cm capacity, 60.1% repro-
Current edition approved Sept. 1, 2008. Published September 2008. Originally
3
approved in 1957. Last previous edition approved in 2008 as D 1510 – 08a.
ducibility and calibrated to within 60.03-cm accuracy.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.5 Balance, analytical, with 0.1-mg sensitivity.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.6 Centrifuge, with minimum speed of 105 rad/s (1000 r/
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. min).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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D1510–08b
3 3
5.7 VolumetricFlask, 2000-cm with standard taper stopper. 7.1.3 Measure approximately 20 cm of 10 % sulfuric acid
5.8 Funnel, large diameter, with standard taper joint to fit solution (see A1.5) into a small graduated cylinder and add to
3
the 2000-cm flask. the KI solution in the iodine flask. The mixture should remain
3
5.9 Glass Bottle, amber, 2000-cm , with standard taper colorless.
stopper.
NO
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:D1510–08a Designation:D1510–08b
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 (´) 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 Method A is the original test method for this determination and Method B is an alternate test method using automated
sample processing and analysis.
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 standard. No other units of measurement are included in this standard.
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
3.1A 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. Summary of Test Methods
3.1 In Test Method A, 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.
3.2 InTestMethodB,aweighedsampleofcarbonblackistreatedwithaportionofstandardiodinesolutionusinganautomated
sample processor where the mixture is stirred, settled and aliquoted for automatic titration. The excess iodine is 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.
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 Aug.Sept. 1, 2008. Published September 2008. Originally approved in 1957. Last previous edition approved in 2008 as D 1510 – 08a.
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 ----------------------
D1510–08b
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%
...
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