ASTM D1338-99(2011)
(Practice)Standard Practice for Working Life of Liquid or Paste Adhesives by Consistency and Bond Strength
Standard Practice for Working Life of Liquid or Paste Adhesives by Consistency and Bond Strength
SIGNIFICANCE AND USE
To determine acceptable working life of an adhesive, two procedures are used. This practice is intended to apply to:
4.1.1 Self-contained liquid or paste adhesives,
4.1.2 Adhesives requiring addition of a catalyst, hardener, filler, thinner, and so forth, or combinations of two or more of these materials just prior to use, and
4.1.3 Powdered or flaked adhesives which are dissolved in water or other solvent and are used as liquid or paste adhesives. CONSISTENCY PROCEDURE Top
SCOPE
1.1 This practice covers two procedures applicable to all adhesives having a relatively short working life. It is intended to determine whether the working life conforms to the minimum specified working life of an adhesive required by consistency tests or by bond strength tests, or by both.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D1338 − 99 (Reapproved2011)
Standard Practice for
Working Life of Liquid or Paste Adhesives by Consistency
and Bond Strength
This standard is issued under the fixed designation D1338; 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 Department of Defense.
1. Scope 3.2.1 working life of an adhesive, n—the time elapsing
between the moment an adhesive is ready for use and the time
1.1 This practice covers two procedures applicable to all
when the adhesive is no longer usable.
adhesives having a relatively short working life. It is intended
to determine whether the working life conforms to the mini-
4. Significance and Use
mum specified working life of an adhesive required by
4.1 To determine acceptable working life of an adhesive,
consistency tests or by bond strength tests, or by both.
two procedures are used. This practice is intended to apply to:
1.2 The values stated in SI units are to be regarded as the
4.1.1 Self-contained liquid or paste adhesives,
standard. The values given in parentheses are for information
4.1.2 Adhesives requiring addition of a catalyst, hardener,
only.
filler, thinner, and so forth, or combinations of two or more of
1.3 This standard does not purport to address all of the
these materials just prior to use, and
safety concerns, if any, associated with its use. It is the
4.1.3 Powdered or flaked adhesives which are dissolved in
responsibility of the user of this standard to establish appro-
waterorothersolventandareusedasliquidorpasteadhesives.
priate safety and health practices and determine the applica-
CONSISTENCY PROCEDURE
bility of regulatory limitations prior to use.
5. Apparatus
2. Referenced Documents
5.1 Viscometer—Any means of measuring the viscosity or
2.1 ASTM Standards:
consistency of the adhesive can be selected, provided that it is
D897 Test Method for Tensile Properties ofAdhesive Bonds
suitable for the type of adhesive under test and provided that
D906 Test Method for Strength Properties of Adhesives in
the results can be expressed in fundamental units.
Plywood Type Construction in Shear by Tension Loading
5.2 Controlled-Atmosphere Chamber—Provide an atmo-
D907 Terminology of Adhesives
sphere of 23 6 1.1°C (73.4 6 2°F) and 50 6 2 % relative
D1002 Test Method for Apparent Shear Strength of Single-
humidity. Alternative controlled conditions are permissible,
Lap-Joint Adhesively Bonded Metal Specimens by Ten-
provided the conditions are agreed upon by the purchaser and
sion Loading (Metal-to-Metal)
the manufacturer.
D1084 Test Methods for Viscosity of Adhesives
5.3 Beaker, of heat-resistant glass, 76 mm (3 in.) in
3. Terminology
diameter, 102 mm (4 in.) high, and having a capacity of 400
mL.
3.1 Definitions—Many terms in this practice are defined in
Terminology D907.
5.4 Stirring Rod, of glass, stainless steel, or other unreactive
material.
3.2 Definitions of Terms Specific to This Standard:
6. Procedure
6.1 Conduct the consistency test on both the adhesive when
This practice is under the jurisdiction of ASTM Committee D14 on Adhesives
freshly prepared and on the adhesive after having been
and is the direct responsibility of Subcommittee D14.10 on Working Properties.
Current edition approved Dec. 1, 2011. Published December 2011. Originally subjected to the working life test.
approved in 1954. Last previous edition approved in 2005 as D1338 – 99 (2005).
NOTE 1—An alternative test method to be used with this practice isTest
DOI: 10.1520/D1338-99R11.
Methods D1084.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. Borosilicate glass is suitable for this purpose.
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D1338 − 99 (2011)
6.2 Precondition the adhesive and all the components at a 8.2 Controlled Atmosphere Chamber—Provide a tempera-
temperature of 23 6 1.1°C (73.4 6 2°F), unless otherwise ture of 23 6 1.1°C (73.4 6 2°F) and 50 6 2 % relative
agreed upon between the purchaser and the manufacturer. humidity for these tests. Alternative controlled conditions are
permissible, provided the conditions are agreeable to the
6.3 Start the test when the adhesive and all the components
purchaser and the manufacturer.
are at a temperature of 23 6 1.1°C (73.4 6 2°F), unless
otherwise agreed upon between the purchaser and the manu-
9. Procedure
facturer. If the adhesive consists of two or more components,
9.1 Conduct the bond strength test on both the adhesive
blend the components in accordance with instructions of the
when freshly prepared and on the adhesive after having been
manufacturer, and again adjust the temperature to 23 6 1.1°C
subjected to the working-life test.
if required. Immediately after mixing a 200-mL (or equivalent
weight) sample of the adhesive, place the prepared adhesive in
9.2 Prepare and blend the adhesive in accordance with 6.2,
the 400-mL beaker.
6.3, 6.4, and 6.5.
6.4 Record the time at th
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