ASTM D1259-85(1994)
(Test Method)Standard Test Methods for Nonvolatile Content of Resin Solutions
Standard Test Methods for Nonvolatile Content of Resin Solutions
SCOPE
1.1 These test methods cover the determination of nonvolatile content of solutions of resins in volatile organic solvents.
1.2 Two test methods are included as follows:
1.2.1 Test Method A--For solutions of non-heat-reactive resins. These solutions contain resins that remain stable and release the solvent under conditions of the test. Examples are ester gums and alkyds.
1.2.2 Test Method B--For two types of solutions:
Solutions of heat-reactive resins. These solutions contain resins that undergo condensation or other reactions under the influence of heat. Examples include the formaldehyde reaction products of urea, melamine, and phenols.
1.2.2.2 Solutions that release solvent slowly. Examples include epoxy resin solutions.
1.3 Test Methods A and B differ primarily in the drying times and types of oven used.
1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.5 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
Relations
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.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 1259 – 85 (Reapproved 1994)
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Methods for
Nonvolatile Content of Resin Solutions
This standard is issued under the fixed designation D 1259; 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 3. Significance and Use
1.1 These test methods cover the determination of nonvola- 3.1 The nonvolatile content of resin solutions is useful to
tile content of solutions of resins in volatile organic solvents. coatings producers and users for the determination of the total
1.2 Two test methods are included as follows: solids available for film formation and for the estimation of the
1.2.1 Test Method A—For solutions of non-heat-reactive volatile organic content.
resins. These solutions contain resins that remain stable and
TEST METHOD A—NON-HEAT-REACTIVE RESIN
release the solvent under conditions of the test. Examples are
SOLUTIONS
ester gums and alkyds.
1.2.2 Test Method B—For two types of solutions:
4. Apparatus
1.2.2.1 Solutions of heat-reactive resins. These solutions
4.1 Ovens:
contain resins that undergo condensation or other reactions
4.1.1 Gravity-convection type, maintained at 105 6 2°C,
under the influence of heat. Examples include the formalde-
with vents open.
hyde reaction products of urea, melamine, and phenols.
4.1.2 Forced-ventilation type, maintained at 105 6 2°C. For
1.2.2.2 Solutions that release solvent slowly. Examples
ovens with adjustable air flow rate, set the control damper at
include epoxy resin solutions.
50 %.
1.3 Test Methods A and B differ primarily in the drying
4.2 Aluminum or Tin Foil, from 0.0015 to 0.0020 in. (38 to
times and types of oven used.
50 μm) in thickness. Either one piece 6 by 12 in. (150 by 300
1.4 This standard does not purport to address all of the
mm), or two 6 by 6-in. (150 by 150-mm) pieces may be used.
safety concerns, if any, associated with its use. It is the
The foil must be perfectly smooth; if it becomes wrinkled
responsibility of the user of this standard to establish appro-
during the initial handling, roll smooth as directed in 5.2.
priate safety and health practices and determine the applica-
4.3 Plate Glass—Two pieces about ⁄16 in. (5 mm) thick;
bility of regulatory limitations prior to use.
1 1
one piece 5 ⁄2 by 5 ⁄2 in. (140 by 140 mm) and one piece 7 by
7 in. (180 by 180 mm).
2. Summary of Test Methods
4.4 Device for Weighing Specimens —Apparatus that will
2.1 In both test methods, a weighed specimen of resin
prevent loss of volatile matter during the weighing operation
solution is spread under pressure between two weighed sheets
such as any of the following, or equivalent:
of aluminum or tin foil. The coated foil sheets are separated
4.4.1 Syringe, Luer, 2 or 5-mL capacity,
and then dried. The weight of residue is determined and the
4.4.2 Weighing Buret, Smith, 10-mL capacity, or
nonvolatile content is calculated. The test method is unique in
4.4.3 Bulb Pipet, dropping, with 50-mL Erlenmeyer flask.
that it provides for drying of a very thin film of resin, thus
4.5 Roller, for Smoothing Foil—Use a ground and polished
minimizing chances for volatiles to be trapped and held during
cylinder, preferably stainless steel, approximately 7 in. (180
the heating operation.
mm) long and 2 in. (50 mm) in diameter.
2.2 Either a gravity-convection or a forced-ventilation oven
4.6 Foil Trays, two types as follows:
and a 30-min heating period at 105°C are used in Test Method
4.6.1 Trays measuring 6 ⁄2 by 12 in. (165 by 300 mm), for
A.
use with 6 by 12-in. foil, constructed from No. 22-gage
2.3 A forced-ventilation oven and a 2-h heating period at
105°C are used in Test Method B.
Aluminum foil available from Thomas Scientific Co., P.O. Box 99, Swedes-
boro, NJ 08085; or from Sargent and Welch Scientific Co., 7300 North Linder Ave.,
Skokie, IL 60077 has been found satisfactory for this purpose.
These test methods are under the jurisdiction of ASTM Committee D-1 on Paint
Tin foil available from J. T. Baker Co., North Broad St., North Philipsburg, NJ
and Related Coatings, Materials, and Applications and are the direct responsibility
08865 has been found satisfactory for this purpose.
of Subcommittee D01.21 on Chemical Analysis of Paints and Paint Materials.
A Smith weighing buret is available from Ace Glass Co., 1430 Northwest
Current edition approved Nov. 29, 1985. Published January 1986. Originally
Blvd., Vineland, NJ 08360. The bulb pipet is available from Thomas Scientific Co.
e1
published as D 1259 – 53. Last previous edition D 1259 – 61 (1980) .
or from Fisher Scientific Co.
D 1259
(0.6–mm) aluminum sheet in accordance with dimensions surfaces to the face-to-face position. While the foil is still
shown in Fig. 1. Several trays may be stacked in the oven to warm, fold the edges together to enclose completely the dried
permit running several specimens simultaneously. film. Without undue delay, weigh to 0.1 mg.
1 1
4.6.2 Trays measuring 6 ⁄2 by 6 ⁄2 in. (165 by 165 mm), for
6. Calculation
use with 6 by 6-in. foil, with holder, shall be constructed from
6.1 Calculate the percent nonvolatile content, C, as follows:
No. 22-gage aluminum sheet, as shown in Fig. 2.
C 5 @~A 2 B! 3 100#/S
5. Procedure
5.1 Use the following procedure with the 6 by 12-in. (150
where:
A 5 weight of foil plus dried solids, g,
by 300-mm) foil sheets and the 6 ⁄2 by 12-
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.