ASTM D2372-85(2005)

Standard Practice for Separation of Vehicle From Solvent-Reducible Paints

SIGNIFICANCE AND USE
Separation of the vehicle from the pigment in solvent-reducible paints is required in order to characterize paint vehicles by chemical, spectroscopic, or chromatographic techniques. Characterization of vehicles is important since they play a major role in the performance of coatings.
SCOPE
1.1 This practice covers the procedure for the separation of the vehicle from the pigment in solvent-reducible paint.
1.2 In the development of the practice the following materials were tested: white soya and white fish oil isophthalic alkyd semi-gloss enamels, white linseed oil paint, white soya and white linseed  o-phthalic alkyd enamels. It is considered to be applicable to similar materials.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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: 31-Dec-2004
• ICS: 87.060.20 - Binders
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.21 - Chemical Analysis of Paints and Paint Materials

Relations

• Replaces: ASTM D2372-85(1999) - Standard Practice for Separation of Vehicle From Solvent-Reducible Paints
• Effective Date: 01-Jan-2005
• Replaced By: ASTM D2372-85(2010) - Standard Practice for Separation of Vehicle From Solvent-Reducible Paints
• Effective Date: 01-Jun-2010
• Referred By: ASTM D2621-87(2016) - Standard Test Method for Infrared Identification of Vehicle Solids From Solvent-Reducible Paints
• Effective Date: 01-Jan-2005
• Referred By: ASTM D1301-91(2020) - Standard Test Methods for Chemical Analysis of White Lead Pigments
• Effective Date: 01-Jan-2005
• Referred By: ASTM D2205-20 - Standard Guide for Selection of Tests for Traffic Paints
• Effective Date: 01-Jan-2005
• Referred By: ASTM D6763-16(2022) - Standard Guide for Testing Exterior Wood Stains and Clear Water Repellents
• Effective Date: 01-Jan-2005
• Referred By: ASTM D5146-10(2019) - Standard Guide to Testing Solvent-Borne Architectural Coatings
• Effective Date: 01-Jan-2005

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:D2372–85(Reapproved2005)
Standard Practice for
Separation of Vehicle From Solvent-Reducible Paints
This standard is issued under the fixed designation D2372; 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 vehicles by chemical, spectroscopic, or chromatographic tech-
niques. Characterization of vehicles is important since they
1.1 This practice covers the procedure for the separation of
play a major role in the performance of coatings.
the vehicle from the pigment in solvent-reducible paint.
1.2 In the development of the practice the following mate-
4. Apparatus
rials were tested: white soya and white fish oil isophthalic
4.1 Centrifuge, high-speed, capable of developing in excess
alkyd semi-gloss enamels, white linseed oil paint, white soya
of 10 000 g.
and white linseed o-phthalic alkyd enamels. It is considered to
be applicable to similar materials.
NOTE 1—Calculate the gravity developed by the centrifuge as follows:
1.3 The values stated in SI units are to be regarded as the
2 6 2
g 5 1.118 3 10 3 r 3 n (1)
standard. The values given in parentheses are for information
only.
where:
r = rotating radius, mm, and
1.4 This standard does not purport to address all of the
n = rotating speed, r/min.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5. Procedure
priate safety and health practices and determine the applica-
NOTE 2—If the percent of pigment is desired, see Test Method D2371
bility of regulatory limitations prior to use.
and Test Method D2698.
2. Referenced Documents
5.1 Mix the sample until it is homogeneous, preferably on a
2.1 ASTM Standards:
mechanical shaker.
D2371 Test Method for Pigment Content of Solvent-
5.2 Centrifuge about 20 mL of the whole paint on a
Reducible Paints
high-speed centrifuge in excess of 10 000 g (Note 1) for 30
D2698 Test Method for Determination of the Pigment
min or until separation is completed. If difficulty is encoun-
Content of Solvent-Reducible Paints by High-Speed Cen-
tered, add 10 mL of a suitable solvent (Note 3). Mix with the
trifuging
vehicle layer in the centrifuge tube and centrifuge
...