ASTM D2369-98

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.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 2369 – 98
Standard Test Method for
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Volatile Content of Coatings
This standard is issued under the fixed designation D 2369; 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 hazard statement see Note 12.
1.1 This test method describes a procedure for the determi-
2. Referenced Documents
nation of the weight percent volatile content of solventborne
2.1 ASTM Standards:
and waterborne coatings. Test specimens are heated at 110 6
2
D 362 Specification for Industrial Grade Toluene
5°C for 60 min.
3
D 1193 Specification for Reagent Water
NOTE 1—The coatings used in these round-robin studies represented
D 3925 Practice for Sampling Liquid Paints and Related
air-dried, air-dried oxidizing, heat-cured baking systems, and also in-
4
Pigmented Coatings
cluded multicomponent paint systems.
E 145 Specification for Gravity-Convection and Forced-
5
1.2 Sixty minutes at 110 6 5°C is a general purpose test
Ventilation Ovens
method based on the precision obtained with both solventborne
E 180 Practice for Determining the Precision Data of
and waterborne coatings (see Section 9). These coatings (single
ASTM Methods for Analysis and Testing of Industrial
6
package, heat cured) are commonly applied in factories to
Chemicals
automobiles, metal containers, flat (coil) metal and large
2.2 Other Standards:
appliances, and many other metal parts.
EPA Reference Method 24—Determination of Volatile Mat-
1.3 This test method is viable for coatings wherein one or
ter Content, Density, Volume Solids, and Weight Solids of
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more parts may, at ambient conditions, contain liquid coreac-
Surface Coatings
tants that are volatile until a chemical reaction has occurred
3. Summary of Test Method
with another component of the multi-package system.
3.1 A designated quantity of coating specimen is weighed
NOTE 2—Committee D-1 has run round-robin studies on volatiles of
into an aluminum foil dish containing 3 mL of an appropriate
multicomponent paint systems. The only change in procedure is to premix
the weighed components in the correct proportions and allow the solvent, dispersed, and heated in an oven at 110 6 5°C for 60
specimens to stand at room temperature for 1 h prior to placing them into
min. The percent volatile is calculated from the loss in weight.
the oven.
4. Significance and Use
1.4 This test method may not be applicable to all types of
4.1 This test method is the procedure of choice for deter-
coatings. Other procedures may be substituted with mutual
mining volatiles in coatings for the purpose of calculating the
agreement between the producer and the user.
volatile organic content in coatings under specified test condi-
NOTE 3—If unusual decomposition or degradation of the specimen
tions. The weight percent solids content (nonvolatile matter)
occurs during heating, the actual time and temperature used to cure the
may be determined by difference. This information is useful to
coating in practice may be substituted for the time and temperature
the paint producer and user and to environmental interests for
specified in this test method, subject to mutual agreement between the
producer and the user. The U.S. EPA Reference Method 24 specifies 110 determining the volatiles emitted by coatings.
6 5°C for 1 h for coatings.
5. Apparatus
1.5 This standard does not purport to address all of the
5.1 Analytical Balance, capable of weighing 60.0001 g.
safety concerns, if any, associated with its use. It is the
5.2 Aluminum Foil Dishes, 58 mm in diameter by 18 mm
responsibility of the user of this standard to establish appro-
high with a smooth (planar) bottom surface. Precondition the
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. For a specific
2
Discontinued; see 1991 Annual Book of ASTM Standards, Vol 06.03.
3
Annual Book of ASTM Standards, Vol 11.01.
1 4
This test method is under the jurisdiction of ASTM Committee D-1 on Paint Annual Book of ASTM Standards, Vol 06.01.
5
and Related Coatings, Materials, and Applications and is the direct responsibility of Annual Book of ASTM Standards, Vol 14.02.
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Subcommittee D01.21 on Chemical Analysis of Paints and Paint Materials. Annual Book of ASTM Standards, Vol 15.05.
7
Current edition approved Nov. 10, 1998. Published January 1999. Originally Available from Superintendent of Documents, U.S. Government Printing
published as D 2369 – 65 T. Last previous edition D 2369 – 97. Office, Washington, DC 20402.
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