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ASTM D2245-90(1999)

(Test Method)

Standard Test Method for Identification of Oils and Oil Acids in Solvent-Reducible Paints

Standard Test Method for Identification of Oils and Oil Acids in Solvent-Reducible Paints

SCOPE
1.1 This test method covers the identification of oils and oil acids in vehicles that have been separated from solvent-reducible paints. The test method is based on a gas chromatographic technique (of the methyl esters) applicable to products containing both saturated and unsaturated, animal and vegetable, unpolymerized or partially polymerized fatty acids having 8 to 20 carbon atoms.  
1.2 This test method is not applicable to products containing fatty acids that have been polymerized or oxidized to such an extent that no characteristic monomeric fatty acids remain.  
1.3 This standard does not purport to address the safety problems 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-May-1999
ICS
87.040 - Paints and varnishes
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.21 - Chemical Analysis of Paints and Paint Materials
Current Stage
Ref Project

Relations

Replaced By
ASTM D2245-90(2005) - Standard Test Method for Identification of Oils and Oil Acids in Solvent-Reducible 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
10-May-1999
Referred By
ASTM D5146-10(2019) - Standard Guide to Testing Solvent-Borne Architectural Coatings
Effective Date
10-May-1999
Referred By
ASTM D4302-14(2021) - Standard Specification for Artists’ Oil, Resin-Oil, and Alkyd Paints
Effective Date
10-May-1999

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ASTM D2245-90(1999) - Standard Test Method for Identification of Oils and Oil Acids in Solvent-Reducible PaintsASTM D2245-90(1999) - Standard Test Method for Identification of Oils and Oil Acids in Solvent-Reducible Paints
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ASTM D2245-90(1999) - Standard Test Method for Identification of Oils and Oil Acids in Solvent-Reducible Paints
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D 2245 – 90 (Reapproved 1999)
Standard Test Method for
Identification of Oils and Oil Acids in Solvent-Reducible
Paints
This standard is issued under the fixed designation D 2245; 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 vaporized methyl esters between a flowing gas phase and a
supported liquid phase in a gas chromatographic column. The
1.1 This test method covers the identification of oils and oil
test method is based on isothermal operation of the gas
acids in vehicles that have been separated from solvent-
chromatograph and a hot wire, thermal conductivity detector.
reducible paints. The test method is based on a gas chromato-
3.2 The test method consists in the separation of the vehicle
graphic technique (of the methyl esters) applicable to products
from the paint by centrifugation, extraction of fatty acids from
containing both saturated and unsaturated, animal and veg-
the vehicle after saponification, conversion of fatty acids and a
etable, unpolymerized or partially polymerized fatty acids
measured addition of margaric acid (internal standard) into
having 8 to 20 carbon atoms.
methyl esters, preparation of the gas chromatogram, and
1.2 Thistestmethodisnotapplicabletoproductscontaining
interpretation of the chromatogram. The amount of each
fatty acids that have been polymerized or oxidized to such an
monomeric fatty acid ester is calculated, totaled, subtracted
extent that no characteristic monomeric fatty acids remain.
from100 %toyieldpolymerizedfattyacids,reportedasis,and
1.3 This standard does not purport to address all of the
interpreted by comparison with standards as being from
safety concerns, if any, associated with its use. It is the
specific oils or oil acids.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4. Significance and Use
bility of regulatory limitations prior to use.
4.1 This test method provides a procedure to identify the
2. Referenced Documents fatty acids present in the vehicle of a paint.
2.1 ASTM Standards:
5. Apparatus
D 1398 Test Method for Fatty Acid Content of Alkyd
2 5.1 Centrifuge, high-speed, capable of developing in excess
Resins and Resin Solutions
of 10 000 g.
D 1983 Test Method for Fatty Acid Composition by Gas-
2 5.2 Separatory Funnels, with PTFE-fluorocarbon stop-
Liquid Chromatography of Methyl Esters
cocks.
D 2372 Practice for Separation of Vehicle from Solvent-
3 5.3 Gas Chromatograph and Accessories, suitable for
Reducible Paints
analysis of fatty acids as methyl esters (see Test Method
D 2800 Test Method for Preparation of Methyl Esters from
D 1983).
Oils for Determination of Fatty Acid Composition by Gas
Chromatography
6. Reagent
6.1 Hydroquinone.
3. Summary of Test Method
3.1 This test method is based upon the differential migration
7. Calibration and Standardization
and partitioning of constituent fatty acids in the form of
7.1 Establish optimum operating conditions on the gas
chromatograph with known samples of methyl esters as de-
scribed in Test Method D 1983.
This test method is under the jurisdiction of ASTM Committee D-1 on Paint
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 May 25, 1990. Published July 1990. Originally
e1
published as D 2245 – 64 T. Last previous edition D 2245 – 72 (1984) .
Annual Book of ASTM Standards, Vol 06.03.
Annual Book of ASTM Standards, Vol 06.01.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D 2245 – 90 (1999)
A
TABLE 1 Fatty Acid Composition of Oils Used in Paint Products
Caster Oil, % Oiticica Oil,%
Palmitic 2 Palmitic 7
Stearic 1 Stearic 5
Oleic 7 Oleic 6
Ricinoleic 87 Licanic 78
Linoleic 3 Hydroxy acids 4
Coconut Oil,% Perilla Oil,%
Caproic trace Palmitic 7
Caprylic 6 Stearic 2
Capric 6 Oleic 13
Lauric 44 Linoleic 14
Myristic 18 Linolenic 64
Palmitic 11 Safflower Oil,%
Stearic 6 Myristic trace
Oleic 7 Myristoleic trace
Linoleic 2 Palmitic 8
Linolenic trace Palmitoleic trace
Cottonseed Oil,% Stearic 3
Capric trace Oleic 13
Lauric trace Linoleic 75
Myristic 1 Linolenic 1
Myristoleic trace Arachidic trace
Palmitic 29 Gadoleic trace
Palmitoleic 2 Soybean Oil,%
Stearic 4 Myristic trace
Oleic 24 Palmitic 11
Linoleic 40 Stearic 4
Arachidic trace Oleic 25
Linseed Oil,% Linoleic 51
Palmitic 6 Linolenic 9
Palmitoleic trace Arachidic trace
Stearic 4 Gadoleic trace
B
Oleic 22 Tall Oil, %
Linoleic 16 Palmitic 5
Linolenic 52 Stearic 3
Arachidic trace Oleic 46
Gadoleic trace Linoleic 41
Menhaden Oil,% Linolenic 3
Lauric trace Arachidic 2
Myristic 7 Tung Oil,%
Myristoleic trace Palmitic 4
Palmitic 16 Stearic 1
Palmitoleic 16 Oleic 8
Stearic 2 Linoleic 4
Oleic 15 Linolenic 3
Linoleic 7 Eleostearic 80
Linolenic 2
Arachidonic 17
Clupanodonic 11
Nisinic 4
Shibic 1
Unidentified unsaturate 2
A
The acids and percents presented in this table are taken from the “Composition and Constants of Fatty Acids” chart and used by permission of the
Archer-Daniels-Midland Co.
B
The percent rosin acids in tall oil may vary from 0 to 42 %, the percent terpenes from 0 to 13 %. Both variations depend on the grade and refining of the oil.
7.2 Prepare working standards by running known paints or 8. Procedure
vehicles through the procedure described in Section 8. Include
8.1 Separate the vehicle from the paint by direct high-speed
particularly compositions with chemical or structural modifi-
centrifuging (see Practice D 2372).
cations that might be expected to alter the fatty acid distribu-
tion or the apparent polymer content of the starting raw
materials.
D 2245 – 90 (1999)
8.2 Extract the fatty acids from the separated vehicle after mer content in relation to what the original starting oil or oil
saponification and removal of the dicarboxylate salts and acids might have been.
unsaponifiable matter in accordance with Test Method D 1398,
9. Report
but substitute separatory funnels with PTFE-fluorocarbon stop-
9.1 Report the type of oil or oil acid when the fa
...

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