ASTM D1510-07a

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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
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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
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
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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
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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:
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5.3.1 Digital Buret, 25-cm capacity, with 0.01-cm increment counter and zero reset control, or
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5.3.2 Buret, glass 25-cm , Class A, side-arm filling, graduated in 0.05 cm and with automatic zero.
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5.4 Repetitive Dispenser, 25-cm capacity, 60.1% reproducibility and calibrated to within 60.03-cm accuracy.
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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.
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volume information, refer to the standard’s Document Summary page on the ASTM website.
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D1510–07a
5.5 Balance, analytical, with 0.1-mg sensitivity.
5.6 Centrifuge, with minimum speed of 105 rad/s (1000 r/min).
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5.7 Volumetric Flask, 2000-cm with standard taper stopper.
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5.8 Funnel, large diameter, with standard taper joint to fit the 2000-cm flask.
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5.9 Glass Bottle, amber, 2000-cm , with standard taper stopper.
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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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