ASTM D3265-01

Standard Test Method for Carbon Black—Tint Strength

SCOPE
1.1 This test method covers the determination of the tint strength of carbon black relative to an industry tint reference black (ITRB).  
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
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: 09-Dec-2001
• ICS: 83.040.20 - Rubber compounding ingredients
• Technical Committee: D24 - Carbon Black
• Drafting Committee: D24.11 - Carbon Black Structure

Relations

• Replaces: ASTM D3265-00 - Standard Test Method for Carbon Black—Tint Strength
• Effective Date: 10-Dec-2001
• Replaced By: ASTM D3265-02 - Standard Test Method for Carbon Black—Tint Strength
• Effective Date: 10-Nov-2002
• Referred By: ASTM D7849-23 - Standard Classification for Nomenclature of Reference Materials of Committee D24
• Effective Date: 10-Dec-2001
• Referred By: ASTM D5817-20 - Standard Practice for Carbon Black, Pelleted—Reduction, Blending, and Drying of Gross Samples for Testing
• Effective Date: 10-Dec-2001
• Referred By: ASTM D1765-23a - Standard Classification System for Carbon Blacks Used in Rubber Products
• Effective Date: 10-Dec-2001
• Referred By: ASTM D6915-23 - Standard Practice for Carbon Black—Evaluation of Standard Reference Blacks
• Effective Date: 10-Dec-2001
• Referred By: ASTM D4122-17(2023) - Standard Practice for Carbon Black—Evaluation of an Industry Reference Black
• Effective Date: 10-Dec-2001
• Referred By: ASTM D3053-23 - Standard Terminology Relating to Carbon Black
• Effective Date: 10-Dec-2001
• Referred By: ASTM D4821-20 - Standard Guide for Carbon Black—Validation of Test Method Precision and Bias
• Effective Date: 10-Dec-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 3265 – 01
Standard Test Method for
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Carbon Black—Tint Strength
This standard is issued under the fixed designation D 3265; 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.
1. Scope sample and multiplied by 100.
1.1 This test method covers the determination of the tint
4. Significance and Use
strength of carbon black relative to an industry tint reference
4.1 For the broad range of commercial rubber grade carbon
black (ITRB).
blacks, tint strength is highly dependent upon particle size. Tint
1.2 The values stated in SI units are to be regarded as the
strength can be used as an indication of particle size; however,
standard. The values given in parentheses are for information
tint strength is also dependent on structure and aggregate size
only.
distribution. Therefore, differences in tint strength within
1.3 This standard does not purport to address all of the
grades of carbon black may reflect differences other than
safety concerns, if any, associated with its use. It is the
particle size.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
NOTE 1—This test method was developed primarily for the character-
bility of regulatory limitations prior to use. ization of N100, N200, and N300 series carbon blacks.
2. Referenced Documents 5. Apparatus
5.1 Analytical Balance, with a sensitivity of 60.1 mg.
2.1 ASTM Standards:
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D 1799 Practice for Carbon Black—Sampling Packaged 5.2 Automatic Muller.
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5.3 Photometric Instrument, capable of detecting differ-
Shipments
D 1900 Practice for Carbon Black—Sampling Bulk Ship- ences in the amount of light reflectance between shades of
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2
gray. The instrument is to be operated following the manu-
ments
D 3324 Practice for Carbon Black—Improving Test Repro- facturer’s instructions for optimum performance.
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5.4 Oven, Gravity-Convection Type, capable of temperature
ducibility Using ASTM Reference Blacks
D 4483 Practice for Determining Precision for Test Method regulation within 61°C at 125°C (62°F at 257°F) and
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temperature uniformity within 65°C (69°F).
Standards in the Rubber and Carbon Black Industries
D 4821 Guide for Carbon Black—Validation of Test 5.5 Reflectance Standards, as required for each reflectance
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instrument for checking calibration.
Method Precision and Bias
5.6 Spatulas, 100 to 150 mm (4 to 6 in.), two, flexible,
3. Summary of Test Method
tapered.
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3.1 A carbon black sample is mixed with a white powder 5.7 Syringe, 5-cm , automatic refilling, reproducible to
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(zinc oxide) and a liquid vehicle (soybean oil epoxide) to 60.02 cm .
produce a black or gray paste. This paste is then spread to 5.8 Wiping Tissue, absorbent and lint free.
produce a surface suitable for measuring the reflectance of the 5.9 Paste Application Apparatus—Any one of the following
mixture by means of a photo-electric reflectance meter. The
reflectance of the tested sample is then compared to the
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Hoover Automatic Muller, Model M5, available from Hoover Color Corp., P.O.
reflectance of the ITRB prepared in the same manner. The tint
Box 218, State Highway 693, Hiwassee, VA 24347, has been found satisfactory for
strength of the tested sample is expressed as units of the this test method.
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The following instruments have been found satisfactory for this test method:
reflectance of the ITRB divided by the reflectance of the
Erichsen Tint Tester 527, available from T. G. Bell, Inc., 1340 Home Ave.,
Akron, OH 44310; Densichron Reflectometer, Catalog No. 3837, composed of the
following parts: Model 1 Photometer-Linear Scale, Catalog No. 3830D; Reflection
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This test method is under the jurisdiction of ASTM Committee D24 on Carbon Head, Catalog No. 3832A; Regulated 6-V Transformer, Catalog No. 3834M;
Black and is the direct responsibility of Subcommittee D24.11 on Absorptive Reflection Tile Set (Standard), Catalog No. 3827T, available from Sargent-Welch
Properties of Carbon Black. Scientific Co., Densichron Div., 7300 N. Lander Ave., Skokie, IL 60076. This model
Current edition approved Dec. 10, 2001. Published February 2002. Originally is no longer available and the suggested replacement model 3867 B has not been
published as D 3265 – 73. Last previous edition D 3265 – 00. found to be satisfactory. Hunter MiniScan XE or XE Plus, available from Hunter
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Annual Book of ASTM Standards, Vol 09.01. Associates Laboratory, Inc., 11491 Sunset Hills Road, Reston, Virginia 22090-5280.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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