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ASTM D1618-99(2011)

(Test Method)

Standard Test Method for Carbon Black ExtractablesTransmittance of Toluene Extract

Standard Test Method for Carbon Black Extractables<char: emdash>Transmittance of Toluene Extract

SIGNIFICANCE AND USE
The toluene discoloration value provides an estimate of toluene-soluble discoloring residues present on the carbon black.
SCOPE
1.1 This test method covers the measurement of the degree of toluene discoloration by carbon black extractables and is useful in controlling the reaction processes for production of carbon black. This test method may not be applicable to carbon blacks with high extractables.
1.2 The values stated in SI units are to be regarded as standard.
1.3 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.

General Information

Status
Historical
Publication Date
30-Apr-2011
ICS
83.040.20 - Rubber compounding ingredients
Technical Committee
D24 - Carbon Black
Drafting Committee
D24.31 - Non-Carbon Black Components of Carbon Black
Current Stage
Ref Project

Relations

Replaces
ASTM D1618-99(2004) - Standard Test Method for Carbon Black Extractables&#8212;Transmittance of Toluene Extract
Effective Date
01-May-2011
Replaced By
ASTM D1618-17 - Standard Test Method for Carbon Black Extractables&#x2014;Transmittance of Toluene Extract
Effective Date
01-Aug-2017
Referred By
ASTM D5817-20 - Standard Practice for Carbon Black, Pelleted—Reduction, Blending, and Drying of Gross Samples for Testing
Effective Date
01-May-2011
Referred By
ASTM D3053-23 - Standard Terminology Relating to Carbon Black
Effective Date
01-May-2011
Referred By
ASTM D8466-22 - Standard Guide for Recovered Carbon Black—Carbon Black Test Methods for Testing rCB
Effective Date
01-May-2011
Referred By
ASTM D4122-17(2023) - Standard Practice for Carbon Black—Evaluation of an Industry Reference Black
Effective Date
01-May-2011

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ASTM D1618-99(2011) - Standard Test Method for Carbon Black Extractables<char: emdash>Transmittance of Toluene ExtractASTM D1618-99(2011) - Standard Test Method for Carbon Black Extractables<char: emdash>Transmittance of Toluene Extract
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ASTM D1618-99(2011) - Standard Test Method for Carbon Black Extractables<char: emdash>Transmittance of Toluene Extract
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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: D1618 − 99 (Reapproved 2011)
Standard Test Method for
Carbon Black Extractables—Transmittance of Toluene
1
Extract
This standard is issued under the fixed designation D1618; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Significance and Use
1.1 This test method covers the measurement of the degree
4.1 The toluene discoloration value provides an estimate of
of toluene discoloration by carbon black extractables and is toluene-soluble discoloring residues present on the carbon
useful in controlling the reaction processes for production of
black.
carbonblack.Thistestmethodmaynotbeapplicabletocarbon
blacks with high extractables.
5. Apparatus and Reagent
1.2 The values stated in SI units are to be regarded as
5.1 Spectrophotometer, with tungsten filament lamp, 20-nm
standard. No other units of measurement are included in this
maximum spectral bandpass, capable of measuring percent
standard. transmittance at a 425-nm wavelength. The instrument is to be
operated in accordance with the manufacturer’s directions for
1.3 This standard does not purport to address all of the
optimum performance.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5.2 Cuvets,rectangular,withanopticallightpathof10mm.
priate safety and health practices and determine the applica-
5.3 Balance, analytical, with a sensitivity of 60.01 g.
bility of regulatory limitations prior to use.
5.4 Oven, gravity-convection type, capable temperature
regulation within 61°C at 125°C and temperature uniformity
2. Referenced Documents
within 65°C.
2
2.1 ASTM Standards:
3
5.5 Pipet, automatic, bottle-type, 20 cm , with a repeatabil-
D1799 Practice for Carbon Black—Sampling Packaged
ity of 60.1.
Shipments
3
D1900Practice for Carbon Black—Sampling Bulk Ship-
5.6 Erlenmeyer Flasks, 125 cm with ground-glass stopper.
ments
5.7 Filter Paper, qualitative grade, medium retention,
D4483Practice for Evaluating Precision for Test Method
medium-fast filter speed, 150-mm diameter.
StandardsintheRubberandCarbonBlackManufacturing
Industries 5.8 Glass Filtering Funnels, 75-mm inside diameter at the
top.
3. Terminology 3
5.9 Beakers, 50 or 100 cm , with pouring lips.
3.1 Definitions:
5.10 Wiping Paper, lint-free.
3.1.1 carbon black toluene discoloration, n— the
5.11 Cotton Swabs.
transmittance, at 425 nm, of the filtrate obtained from the
toluene extract of carbon black, compared to that of pure
5.12 Fume Hood, fully enclosed on three sides, with spark-
toluene.
proof fan and motor.
5.13 Toluene, analytical reagent grade.
1
This test method is under the jurisdiction ofASTM Committee D24 on Carbon
6. Sampling
Black and is the direct responsibility of Subcommittee D24.31 on Non-Carbon
Black Components of Carbon Black.
6.1 Samples shall be taken in accordance with Practice
CurrenteditionapprovedMay1,2011.PublishedJuly2011.Originallyapproved
D1799 or Practice D1900.
in 1965. Last previous edition approved in 2004 as D1618–99 (2004). DOI:
10.1520/D1618-99R11.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 7. Standardization of Apparatus
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
7.1 Turn on the spectrophotometer and allow it to warm for
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. the length of time specified by the manufacturer.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D1618 − 99 (2011)
7.2 Check the zero reading of the spectrophotometer in 8.11 Insert the cuvet into the spectrophotometer and record
accordance with the manufacturer’s instructions, and adjust if the percent transmittance obtained at 425 nm to the nearest
necessary. 0.1%.
7.3 PlacethefunnelwiththefilterpaperintoanErlenmeyer
9. Report
3
flask. Filter approximately 30 cm of toluene into the flask and
9.1 Report the following information:
stopper the flask.
9.1.1 Proper identification of the sample, and
7.4 Pour a portion of the toluene into the beaker with the
9.1.2 Toluene discoloration value reported to the nearest
pouring lip for simplifying the transfer of the toluene to the
0.1% transmittance.
cuvet.
10. Precision and Bias
7.5 Rinse the cuvet with the filtered toluene three times,
filling approximately one third full each time. Discard this
10.1 These precision statements have been prepared in
rinsing toluene into an approved safety container.
accordance with Practice D4483. Refer
...

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