ASTM D1259-06(2012)
(Test Method)Standard Test Methods for Nonvolatile Content of Resin Solutions
Standard Test Methods for Nonvolatile Content of Resin Solutions
SIGNIFICANCE AND USE
3.1 The nonvolatile content of resin solutions is useful to coatings producers and users for the determination of the total solids available for film formation and for the estimation of the volatile organic content.
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:
1.2.2.1 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
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Standards Content (Sample)
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Designation: D1259 − 06 (Reapproved 2012)
Standard Test Methods for
Nonvolatile Content of Resin Solutions
This standard is issued under the fixed designation D1259; 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 U.S. Department of Defense.
1. Scope minimizing chances for volatiles to be trapped and held during
the heating operation.
1.1 These test methods cover the determination of nonvola-
tile content of solutions of resins in volatile organic solvents. 2.2 Either a gravity-convection or a forced-ventilation oven
and a 30-min heating period at 105°C are used in Test Method
1.2 Two test methods are included as follows:
A.
1.2.1 Test Method A—For solutions of non-heat-reactive
resins. These solutions contain resins that remain stable and 2.3 A forced-ventilation oven and a 2-h heating period at
release the solvent under conditions of the test. Examples are 105°C are used in Test Method B.
ester gums and alkyds.
3. Significance and Use
1.2.2 Test Method B—For two types of solutions:
1.2.2.1 Solutions of heat-reactive resins. These solutions
3.1 The nonvolatile content of resin solutions is useful to
contain resins that undergo condensation or other reactions
coatings producers and users for the determination of the total
under the influence of heat. Examples include the formalde-
solids available for film formation and for the estimation of the
hyde reaction products of urea, melamine, and phenols.
volatile organic content.
1.2.2.2 Solutions that release solvent slowly. Examples
TEST METHOD A—NON-HEAT-REACTIVE RESIN
include epoxy resin solutions.
SOLUTIONS
1.3 Test Methods A and B differ primarily in the drying
times and types of oven used.
4. Apparatus
1.4 The values stated in SI units are to be regarded as the
4.1 Ovens:
standard. The values given in parentheses are for information
4.1.1 Gravity-convection type, maintained at 105 6 2°C,
only.
with vents open.
1.5 This standard does not purport to address all of the
4.1.2 Forced-ventilation type, maintained at 105 6 2°C. For
safety concerns, if any, associated with its use. It is the
ovens with adjustable air flow rate, set the control damper at
responsibility of the user of this standard to establish appro-
50 %.
priate safety and health practices and determine the applica-
4.2 Aluminum or Tin Foil, from 38 to 50 µm (0.0015 to
bility of regulatory limitations prior to use.
0.0020 in.) in thickness. Either one piece 150 by 300 mm (6 by
12 in.), or two 150 by 150-mm (6 by 6-in.) pieces may be used.
2. Summary of Test Methods
The foil must be perfectly smooth; if it becomes wrinkled
2.1 In both test methods, a weighed specimen of resin
during the initial handling, roll smooth as directed in 5.2.
solution is spread under pressure between two weighed sheets
4.3 PlateGlass—Twopiecesabout5mm( ⁄16in.)thick;one
of aluminum or tin foil. The coated foil sheets are separated
1 1
piece140by140mm(5 ⁄2by5 ⁄2in.)andonepiece180by180
and then dried. The weight of residue is determined and the
mm (7 by 7 in.).
nonvolatile content is calculated. The test method is unique in
that it provides for drying of a very thin film of resin, thus 4.4 Device for Weighing Specimens —Apparatus that will
prevent loss of volatile matter during the weighing operation
such as any of the following, or equivalent:
4.4.1 Syringe, Luer, 2 or 5-mL capacity,
These test methods are under the jurisdiction of ASTM Committee D01 on
4.4.2 Weighing Buret, Smith, 10-mL capacity, or
Paint and Related Coatings, Materials, and Applications and are the direct
responsibility of Subcommittee D01.21 on Chemical Analysis of Paints and Paint
4.4.3 Bulb Pipet, dropping, with 50-mL Erlenmeyer flask.
Materials.
CurrenteditionapprovedJune1,2012.PublishedJuly2012.Originallyapproved
in 1953. Last previous edition approved in 2006 as D1259 – 06. DOI: 10.1520/
D1259-06R12. The bulb pipet is available from most scientific supply houses.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D1259 − 06 (2012)
4.5 Roller, for Smoothing Foil—Use a ground and polished edge of the foil, repeat the determination, allowing a few
cylinder, preferably stainless steel, approximately 7 in. (180 minutes for a portion of the solvent to evaporate from the
mm) long and 2 in. (50 mm) in diameter. weighed specimen before covering and pressing it.
4.6 Foil Trays, two types as follows: 5.3 After pressing, open the foil to its full length and place
4.6.1 Trays measuring 165 by 300 mm (6 ⁄2 by 12 in.) , for it in the foil tray. Place the tray in either a gravity-convection
use with (6 by 12-in.) foil, constructed from No. 22-gauge or a forced-ventilation oven at 105 6 2°C for 30 min.
0.6–mmaluminumsheetinaccordancewithdimensionsshown
5.4 Remove the tray from the oven and then carefully
in Fig. 1. Several trays may be stacked in the oven to permit
remove the foil sheet from the tray. Return the dried film
running several specimens simultaneously.
surfaces to the face-to-face position. While the foil is still
1 1
4.6.2 Trays measuring 165 by 165 mm (6 ⁄2 by 6 ⁄2 in.), for
warm, fold the edges together to enclose completely the dried
usewith(6by6-in.)foil,withholder,shallbeconstructedfrom
film. Without undue delay, weigh to 0.1 mg.
No. 22-gauge aluminum sheet, as shown in Fig. 2.
6. Calculation
5. Procedure
6.1 Calculate the percent nonvolatile content, C, as follows:
5.1 Use the following procedure with the 150 by 300-
C 5 A 2B 3100 /S
1 @~ ! #
mm (6 by 12-in. ) foil sheets and the 165 by 300-mm (6 ⁄2 by
12-in.)trays.Alternativelytwo150by150-mm(6by6-in.)foil
where:
sheets may be used in
...
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