ASTM D4426-01
(Test Method)Standard Test Method for Determination of Percent Nonvolatile Content of Liquid Phenolic Resins Used for Wood Laminating
Standard Test Method for Determination of Percent Nonvolatile Content of Liquid Phenolic Resins Used for Wood Laminating
SCOPE
1.1 This test method covers the recommended procedure for the determination of the nonvolatile or total solids content of liquid phenolic resins used for wood laminating.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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.
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Designation:D4426 – 01
Standard Test Method for
Determination of Percent Nonvolatile Content of Liquid
1
Phenolic Resins Used for Wood Laminating
This standard is issued under the fixed designation D 4426; 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.
1. Scope comparative purposes. For greater precision and accuracy, Test
Method D 1582 is recommended.
1.1 This test method covers the recommended procedure for
the determination of the nonvolatile or total solids content of
6. Apparatus
liquid phenolic resins used for wood laminating.
6.1 Disposable Aluminum Foil Dishes, 60-mm (2.4-in.)
1.2 The values stated in SI units are to be regarded as the
diameter by 16-mm (0.60-in.) depth.
standard. The values given in parentheses are for information
only.
NOTE 1—Aglass dish may be used if the pH of the resin is greater than
1.3 This standard does not purport to address all of the ten.
safety concerns, if any, associated with its use. It is the
6.2 Desiccator, charged with Drierite or equivalent desic-
responsibility of the user of this standard to establish appro-
cant.
priate safety and health practices and determine the applica-
6.3 Mechanical Convection Oven.
bility of regulatory limitations prior to use.
6.4 Analytical Balance, accurate to 60.1 mg (0.000002 lb).
6.5 Eye Droppers, or Dropping Pipettes, 2-mL capacity.
2. Referenced Documents
6.6 Anemometer.
2.1 ASTM Standards:
6.7 Stainless Steel Trays, fabricated 30 gage, 83 by 250 mm
2
D 907 Terminology of Adhesives
(3.25 by 9.8 in.), with 19-mm (0.75-in.) sides and open ends.
D 1582 Test Method for Nonvolatile Content of Liquid
6.8 Modified Oven Shelves, fitted with fabricated 18-gage
2
Phenol, Resorcinol, and Melamine Adhesives
19 by 19-mm (0.75 by 0.75-in.) stainless steel angle stop
positioned 108 mm (4.25 in.) from back edge. Shelf-stop
3. Terminology
ensures consistent solids dish placement and prevents place-
3.1 Definitions:—Many of the terms in this test method are
ment at the rear of the oven where airflow is erratic.
defined in Terminology D 907.
6.9 Laboratory Hotplate, with heating capacity to 270°C
(518°F).
4. Summary of Test Method
4.1 Aweighed specimen is oven-dried, cooled in a desicca-
7. Oven Setup and Periodic Check Specifications
tor, and weighed.The percent nonvolatile content is calculated,
7.1 Specifications:
based on the amount remaining.
7.1.1 Intake Port— 6.4 mm (0.25 in.) open.
7.1.2 Exhaust Port— 6.4 mm (0.25 in.) open.
5. Significance and Use
7.1.3 Internal Airflow— 91.4 6 1 m/min (300 6 3 ft/min)
5.1 This test method is intended as a fast and economical
at 40°C (104°F).
determination of the nonvolatile content of liquid phenolic
7.1.4 Temperature— 125 6 1°C (257 6 2°F).
resins used for wood laminating and is useful for general
7.2 A 6.4-mm (0.25-in.) metal spacer is a convenient tool
for setting port openings.
7.3 MeasurewithDavis-typeanemometerplacedascloseas
1
possible to the geometric center of the cavity with the door
This test method is under the jurisdiction of ASTM Committee D14 on
Adhesives and is the direct responsibility of Subcommittee D14.30 on Wood
shut.
Adhesives.
7.4 Set the oven temperature at 125°C (257°F) and record
Current edition approved March 10, 2001. Published May 2001. Originally
the actual temperature for a period of 2 h. The control range
published as D 4426 –84. Last previous edition D 4426 – 96 .
2
Annual Book of ASTM Standards, Vol 15.06. shall be 6 1°C (2°F) during the check period.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D4426
8. Sampling visually at the time of weighing. If any of the three specimens
obviously deviates from the other two, or from usual normal
8.1 Take a representative sample of the lot of resin being
appearance, discard all three specimens and rerun the test.
evaluated of a sufficient quantity for the tests. While the tests
consume less than 5 g (0.01 lb) of resin, a sample of at least
11. Calculation
250 g (0.55 lb) is recommended to ensure that it is represen-
11.1 Calculate the percent of nonvolatile matter as follows:
tative and that rechecks can be made if desired.
8.2 To ensure that surface evaporation of solvent does not
Nonvolatile matter, % 5 A/B! 3 100
~
affect the accuracy of the results, mix the resin sample
where:
thoroughly just prior to the test.
A = net weight of dried residue, and
B = net weight of liquid resin specimen.
9. Sample Dish Preparation
11.2 Calculate the average of the three specimens and report
9.1 Inscribe an identify
...
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