ASTM D1510-11
(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. One or more of these SRB HT Iodine Standards are recommended for daily monitoring (x-charts) to ensure that the results are within the control limits of the individual standard. Use all SRB HT Iodine Standards 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:D1510–11
Standard Test Method for
1
Carbon Black—Iodine Adsorption Number
This standard is issued under the fixed designation D1510; 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 D4821 GuideforCarbonBlack—ValidationofTestMethod
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. One or more of these SRB HT Iodine
3.2 In Test Method B, a weighed sample of carbon black is
Standards are recommended for daily monitoring (x-charts) to
treated with a portion of standard iodine solution using an
ensure that the results are within the control limits of the
automated sample processor where the mixture is stirred,
individual standard. Use all SRB HT Iodine Standards for
settled and aliquoted for automatic titration. The excess iodine
standardization of iodine testing (see Section 8) when target
is titrated with standard sodium thiosulfate solution, and the
values cannot be obtained.
adsorbed iodine is expressed as a fraction of the total mass of
1.3 The values stated in SI units are to be regarded as
black.
standard. No other units of measurement are included in this
standard.
4. Significance and Use
1.4 This standard does not purport to address all of the
4.1 Theiodineadsorptionnumberisusefulincharacterizing
safety concerns, if any, associated with its use. It is the
carbon blacks. It is related to the surface area of carbon blacks
responsibility of the user of this standard to establish appro-
and is generally in agreement with nitrogen surface area. The
priate safety and health practices and determine the applica-
presence of volatiles, surface porosity, or extractables will
bility of regulatory limitations prior to use.
influence the iodine adsorption number.Aging of carbon black
can also influence the iodine number.
2. Referenced Documents
2
2.1 ASTM Standards:
5. Apparatus
D1799 Practice for Carbon Black—Sampling Packaged
5.1 Vials, glass, optically clear type, with polyethylene
Shipments
3
stoppers, 45 cm .
D1900 Practice for Carbon Black—Sampling Bulk Ship-
5.2 Gravity Convection Drying Oven, capable of maintain-
ments
ing 125 6 5°C.
D4483 Practice for Evaluating Precision for Test Method
5.3 Buret, either of the following may be used:
Standards in the Rubber and Carbon Black Manufacturing
3 3
5.3.1 Digital Buret, 25-cm capacity, with 0.01-cm incre-
Industries
ment counter and zero reset control, or
3
5.3.2 Buret, glass 25-cm , Class A, side-arm filling, gradu-
1 3
This test method is under the jurisdiction ofASTM Committee D24 on Carbon
ated in 0.05 cm and with automatic zero.
3
Black and is the direct responsibility of Subcommittee D24.21 on Carbon Black
5.4 Repetitive Dispenser, 25-cm capacity, 60.1% repro-
Surface Area and Related Properties.
3
ducibility and calibrated to within 60.03-cm accuracy.
Current edition approved Jan. 1, 2011. Published February 2011. Originally
approved in 1957. Last previous edition approved in 2010 as D1510 – 10. DOI: 5.5 Balance, analytical, with 0.1-mg sensitivity.
10.1520/D1510-11.
5.6 Centrifuge, with minimum speed of 105 rad/s (1000 r/
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
min).
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
5.7 VolumetricFlask, 2000-cm with standard taper stopper.
Standards 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 ----------------------
D1510–11
3
5.8 Funnel, large diameter, with standard taper joint to fit 7.1.1.2 Measureapproximately20cm of10%sulfuricacid
3
the 2000-cm flask. solution (see A1.5) into a small graduated cylinder and add to
3
5.9 Glass Bottle, amb
...
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:D1510–10 Designation:D1510–11
Standard Test Method for
1
Carbon Black—Iodine Adsorption Number
This standard is issued under the fixed designation D1510; 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. One or more of these SRB HT Iodine Standards are
recommended for daily monitoring (x-charts) to ensure that the results are within the control limits of the individual standard. Use
all SRB HT Iodine Standards 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:
D1799 Practice for Carbon BlackSampling Packaged Shipments
D1900 Practice for Carbon BlackSampling Bulk Shipments
D4483 Practice for Evaluating Precision for Test Method Standards in the Rubber and Carbon Black Manufacturing Industries
D4821 Guide for Carbon BlackValidation of Test Method Precision and Bias
3. 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.
5.3 Buret, either of the following may be used:
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 Oct. 15, 2010. Published November 2010. Originally approved in 1957. Last previous edition approved in 2009 as D1510–09b. DOI:
10.1520/D1510-10.
Current edition approved Jan. 1, 2011. Published February 2011. Originally approved in 1957. Last previous edition approved in 2010 as D1510 – 10. DOI:
10.1520/D1510-11.
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 ----------------------
D1510–11
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
...
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