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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Status
Historical
Publication Date
09-Mar-2001
Technical Committee
Drafting Committee
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ASTM D4426-96 - Standard Test Method for Determination of Percent Nonvolatile Content of Liquid Phenolic Resins Used for Wood Laminating
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.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 4426 – 96
Standard Test Method for
Determination of Percent Nonvolatile Content of Liquid
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 5. Significance and Use
1.1 This test method covers the recommended procedure for 5.1 This test method is intended as a fast and economical
the determination of the nonvolatile or total solids content of determination of the nonvolatile content of liquid phenolic
liquid phenolic resins used for wood laminating. resins used for wood laminating and is useful for general
1.2 The values stated in SI units are to be regarded as the comparative purposes. For greater precision and accuracy, Test
standard. The values given in parentheses are for information Method D 1582 is recommended.
only.
6. Apparatus
1.3 This standard does not purport to address all of the
6.1 Disposable Aluminum Foil Dishes, 60-mm (2.4-in.)
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- diameter by 16-mm (0.60-in.) depth.
priate safety and health practices and determine the applica-
NOTE 1—A glass dish may be used if the pH of the resin is greater than
bility of regulatory limitations prior to use.
ten.
6.2 Desiccator, charged with Drierite or equivalent desic-
2. Referenced Documents
cant.
2.1 ASTM Standards:
6.3 Mechanical Convection Oven.
D 907 Terminology of Adhesives
6.4 Analytical Balance, accurate to 60.1 mg (0.000002 lb).
D 1582 Test Method for Nonvolatile Content of Liquid
6.5 Eye Droppers, or Dropping Pipettes, 2-mL capacity.
Phenol, Resorcinol, and Melamine Adhesives
6.6 Anemometer.
6.7 Stainless Steel Trays, fabricated 30 gage, 83 by 250 mm
3. Terminology
(3.25 by 9.8 in.), with 19-mm (0.75-in.) sides and open ends.
3.1 Definitions:—Many of the terms in this test method are
6.8 Modified Oven Shelves, fitted with fabricated 18-gage
defined in Terminology D 907.
19 by 19-mm (0.75 by 0.75-in.) stainless steel angle stop
3.1.1 nonvolatile content, n—the portion of a material that
positioned 108 mm (4.25 in.) from back edge. Shelf-stop
remains after volatile matter has been evaporated under speci-
ensures consistent solids dish placement and prevents place-
fied ambient or accelerated conditions. (Sometimes called
ment at the rear of the oven where airflow is erratic.
solids content.)
6.9 Laboratory Hotplate, with heating capacity to 270°C
3.1.1.1 Discussion—The percentage by weight of nonvola-
(518°F).
tile matter in an adhesive will vary depending on the analytical
procedure used. A standard test method must be used to obtain
7. Oven Setup and Periodic Check Specifications
consistent results. Some liquids may remain, depending on the
7.1 Specifications:
conditions of the test.
7.1.1 Intake Port—6.4 mm (0.25 in.) open.
3.1.2 solids content, n—See nonvolatile content.
7.1.2 Exhaust Port—6.4 mm (0.25 in.) open.
7.1.3 Internal Airflow—91.4 6 1 m/min (300 6 3 ft/min) at
4. Summary of Test Method
40°C (104°F).
4.1 A weighed sample is oven-dried, cooled in a desiccator,
7.1.4 Temperature—125 6 1°C (257 6 2°F).
and weighed. The percent nonvolatile content is calculated,
7.2 A 6.4-mm (0.25-in.) metal spacer is a convenient tool
based on the amount remaining.
for setting port openings.
7.3 Measure with Davis-type anemometer placed as close as
This test method is under the jurisdiction of ASTM Committee D-14 on possible to the geometric center of the cavity with the door
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 Sept. 10, 1996. Published November 1996. Originally
the actual temperature for a period of 2 h. The control range
published as D 4426 –84. Last previous edition D 4426 – 93.
Annual Book of ASTM Standards, Vol 15.06.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
D 4426
shall be6 1
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