ASTM D2371-85(2010)
(Test Method)Standard Test Method for Pigment Content of Solvent-Reducible Paints (Withdrawn 2019)
Standard Test Method for Pigment Content of Solvent-Reducible Paints (Withdrawn 2019)
SIGNIFICANCE AND USE
This test method is suitable for setting specifications for the pigment content of solvent-reducible paints as well as for monitoring manufacturing quality control.
This test method provides the isolated pigment fraction from solvent-reducible paints that may be used for pigment analysis.
SCOPE
1.1 This test method covers the procedure for the quantitative separation of the vehicle from the pigment in solvent-reducible coatings.
1.2 This test method has been proven to be applicable to the following types of paints: white linseed oil outside house paint, white soya and phthalic alkyd enamel, white linseed o-phthalic alkyd enamel, red lead primer, zinc chromate primer, flat white inside enamel, white epoxy enamel, white vinyl toluene modified alkyd, and white amino modified baking enamel. It is considered to be applicable to most solvent-reducible paints.
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. Specific hazard statements are given in Section 6.
WITHDRAWN RATIONALE
This test method covers the procedure for the quantitative separation of the vehicle from the pigment in solvent-reducible coatings.
Formerly under the jurisdiction of Committee D01 on Paint and Related Coatings, Materials, and Applications, this test method was withdrawn in July 2019 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D2371 − 85 (Reapproved 2010)
Standard Test Method for
Pigment Content of Solvent-Reducible Paints
This standard is issued under the fixed designation D2371; 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 3.2 This test method provides the isolated pigment fraction
from solvent-reducible paints that may be used for pigment
1.1 This test method covers the procedure for the quantita-
analysis.
tive separation of the vehicle from the pigment in solvent-
reducible coatings.
4. Apparatus
1.2 This test method has been proven to be applicable to the
4.1 Centrifuge, explosion-proof, capable of developing
followingtypesofpaints:whitelinseedoiloutsidehousepaint,
1000 to 2000 g.
white soya and phthalic alkyd enamel, white linseed o-phthalic
NOTE1—Thecentrifugeshouldbeequippedwithasuitableheadtotake
alkyd enamel, red lead primer, zinc chromate primer, flat white
the proper size trunnion cups necessary for use of the 90-mL tubes or
inside enamel, white epoxy enamel, white vinyl toluene
120-mL(4-oz) bottles.Atwo, four, or six-place head can be used with the
modified alkyd, and white amino modified baking enamel. It is
bottles and an eight-place head can be used with the tubes.
considered to be applicable to most solvent-reducible paints.
4.2 Centrifuge Tube, 90-mL, heavy-walled. In place of the
1.3 The values stated in SI units are to be regarded as the
90-mL centrifuge tube a 120-mL (4-oz) screw cap bottle with
standard. The values given in parentheses are for information
vinyl-lined screw cap may be used.
only.
4.3 Laboratory Oven, vented and capable of maintaining a
1.4 This standard does not purport to address all of the
temperature of 105 6 2°C.
safety concerns, if any, associated with its use. It is the
4.4 Syringe, 5-mL.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4.5 Water Bath.
bility of regulatory limitations prior to use. Specific hazard
5. Solvents
statements are given in Section 6.
5.1 Ethyl Ether or Petroleum Ether: (Warning—See 6.1).
2. Referenced Documents
5.2 Extraction Mixture—Mix 10 volumes of ethyl ether, 6
2.1 ASTM Standards:
volumes of benzene or toluene, 4 volumes of methyl alcohol,
D2698 Test Method for Determination of the Pigment Con-
and 1 volume of acetone (Warning—See 6.2, 6.3, and 6.4).
tent of Solvent-Reducible Paints by High-Speed Centri-
fuging
6. Hazards
6.1 EthylEtherandPetroleumEther—Flammable.Vaporis
3. Significance and Use
harmful. May be fatal if inhaled or swallowed. Use only with
3.1 This test method is suitable for setting specifications for
adequate ventilation.Avoid prolonged contact with skin.Avoid
the pigment content of solvent-reducible paints as well as for
contact with flame, hot surface, or sparks. Do not get in eyes,
monitoring manufacturing quality control.
on skin, or on clothing. Refer to suppliers’ Material Safety
Data Sheet.
6.2 Acetone—Flammable. Vapor is harmful. May be fatal if
This test method is under the jurisdiction of ASTM Committee D01 on Paint
inhaled or swallowed. Use only with adequate ventilation.
and Related Coatings, Materials, andApplications and is the direct responsibility of
Subcommittee D01.21 on Chemical Analysis of Paints and Paint Materials.
Current edition approved Dec. 1, 2010. Published December 2010. Originally
approved in 1965. Last previous edition approved in 2005 as D2371 – 85 (2005). The sole source of supply of bottles and caps, Cat. No. S9185C, 4-oz bottle,
DOI: 10.1520/D2371-85R10. known to the committee at this time is Sargent Welch Scientific, 7300 N. Linder
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Ave., Skokie, IL60076. If you are aware of alternative suppliers, please provide this
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM information to ASTM International Headquarters. Your comments will receive
Standards volume information, refer to the standard’s Document Summary page on careful consideration at a meeting of the responsible technical committee, which
the ASTM website. you may attend.
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D2371 − 85 (2010)
Avoid prolonged contact with skin. Avoid contact with flame, 7.6 Repeat the extraction twice as described in 7.3, 7.4, and
hot surface, or sparks. Do not get in eyes, on skin, or on 7.5, making certain that the settled pigment is suf
...
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