ASTM D1490-96e1

Standard Test Method for Nonvolatile Content of Urea-Formaldehyde Resin Solutions

SCOPE
1.1 This test method covers the determination of the apparent nonvolatile content of urea-formaldehyde resin solutions intended for use as wood adhesives. Due to the chemical nature of such resins, the nonvolatile content determined varies markedly according to the type of test used. In order to minimize this condition, this test method is designed to yield reasonably uniform agreement among different laboratories testing specimens from the same sample.  
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.

General Information

• Status: Historical
• Publication Date: 09-Oct-2001
• ICS: 83.080.10 - Thermosetting materials
• Technical Committee: D14 - Adhesives
• Drafting Committee: D14.30 - Wood Adhesives

Relations

• Replaced By: ASTM D1490-01 - Standard Test Method for Nonvolatile Content of Urea-Formaldehyde Resin Solutions
• Effective Date: 10-Oct-2001
• Referred By: ASTM D4690-12(2018) - Standard Specification for Urea-Formaldehyde Resin Adhesives
• Effective Date: 10-Oct-2001
• Referred By: ASTM D4209-07(2019) - Standard Practice for Determining Volatile and Nonvolatile Content of Cellulosics, Emulsions, Resin Solutions, Shellac, and Varnishes
• Effective Date: 10-Oct-2001
• Referred By: ASTM D4317-16(2023) - Standard Specification for Polyvinyl Acetate-Based Emulsion Adhesives
• Effective Date: 10-Oct-2001

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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.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.
e1
Designation: D 1490 – 96
Standard Test Method for
Nonvolatile Content of Urea-Formaldehyde Resin Solutions
This standard is issued under the fixed designation D 1490; 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.
e NOTE—Paragraph 3.1.1 was corrected editorially in March 1997.
1. Scope 4.2 This test method determines the apparent nonvolatile
content for urea-formaldehyde resins.
1.1 This test method covers the determination of the appar-
ent nonvolatile content of urea-formaldehyde resin solutions
5. Apparatus
intended for use as wood adhesives. Due to the chemical nature
5.1 Analytical Balance, accurate to 61.0 mg (0.000002 lb).
of such resins, the nonvolatile content determined varies
5.2 Thermometer—A glass thermometer having a range
markedly according to the type of test used. In order to
from 0 to 110 or 150°C (32 to 230 or 302°F) and accurate to
minimize this condition, this test method is designed to yield
61°C (62°F) at the required immersion.
reasonably uniform agreement among different laboratories
5.3 Constant-Temperature Oven, capable of maintaining a
testing specimens from the same sample.
temperature of 105 6 1°C (221 6 2°F) and an air turnover of
1.2 The values stated in SI units are to be regarded as the
15 to 17 times per min. Use only one shelf for supporting the
standard. The values given in parentheses are for information
specimens. Position this shelf in the upper third of the oven, as
only.
near one third from the ceiling as possible. Level the shelf to
1.3 This standard does not purport to address all of the
within 0.025 mm (0.001 in.) from edge to edge in all directions.
safety concerns, if any, associated with its use. It is the
Place the thermometer bulb as close to the center of the shelf
responsibility of the user of this standard to establish appro-
as possible.
priate safety and health practices and determine the applica-
5.4 Tared Lunge Weighing Pipet, stoppered weighing bottle,
bility of regulatory limitations prior to use.
or equivalent dispenser for accurately weighing by difference.
2. Referenced Documents 5.5 Drying Dishes—Aluminum foil dishes, with 57 to
58-mm (2.25-in.) inside diameter and 17 mm (0.7 in.) deep,
2.1 ASTM Standards:
with flat bottoms, having a tolerance of 60.076 mm (60.003
D 907 Terminology of Adhesives
in.).
3. Terminology 5.6 Desiccator, with tray, containing active anhydrous cal-
cium chloride desiccant.
3.1 Definitions—Many terms in this test method are defined
in Terminology D 907.
6. Sampling
3.1.1 nonvolatile content, n—the portion of a material that
6.1 Take a sufficient quantity of a sample representative of
remains after volatile matter has been evaporated under speci-
the lot being evaluated to conduct the test. While the test
fied ambient or accelerated conditions. (Sometimes called
consumes less than 10 g (0.02 lb) of sample, a sample of
solids content.)
approximately 0.23 L ( ⁄2 pt) is suggested to ensure that it is
3.1.1.1 Discussion—The percentage by weight of the non-
representative and will permit rechecks, if necessary.
volatile matter in an adhesive will vary depending on the
6.2 As urea-formaldehyde resin solutions have a varying
analytical procedure. A standard test method must be used to
tendency toward mild settling or stratification, agitate the lot
obtain consistent results.
thoroughly before sampling, and mix the sample well before it
3.1.2 solids content, n—See nonvolatile content.
is used in the test.
4. Significance and Use
7. Procedure
4.1 Wood adhesive performance and cost is often related to
7.1 Preparation of Test Specimens—Place a portion of the
the solids level (nonvolatile content).
resin solution in the weighing dispenser and weigh to 61 mg.
Transfer a sufficient amount of the solution to yield 0.45 6
This test method is under the jurisdicti
...