ASTM D7149-05(2011)e1

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
´1
Designation: D7149 − 05 (Reapproved2011)
Standard Practice for
Determining the Freeze Thaw Stability of Adhesives
This standard is issued under the fixed designation D7149; 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.
´ NOTE—Units of measure were editorially corrected from hard to soft conversions in April 2011.
1. Scope 4.2 Thispracticewillallowtheusertodeterminewhetheror
not the adhesive can be appropriately applied after cycling of
1.1 This practice determines the ability of an adhesive to
freezing and thawing.
withstand repeated freezing and thawing cycles at specific
temperatures without any significant change in physical prop- 4.3 This practice will identify any significant changes in the
erties. manufactured viscosity of the product after five cycles, or as
otherwise specified, of freezing and thawing at a specific
1.2 The values stated in SI units are to be regarded as the
temperature.
standard. The values given in parentheses are for information
only. 4.4 This practice will help determine if the pH of adhesive
has changed significantly due to the freezing and thawing
1.3 This practice does not purport to address all of the
cycles.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this practice to establish appro-
5. Apparatus
priate safety and health practices and determine the applica-
5.1 A 1.0 L (1 qt) container, or larger, with lid. Other
bility of regulatory limitation prior to use.
container sizes may be applicable for some adhesives.
2. Referenced Documents
5.2 Freezer capable of maintaining -18 6 -2°C (0.0 6 -5°F)
2.1 ASTM Standards:
to -7 6 -2°C (20 6 -5°F).
D907 Terminology of Adhesives
5.3 Brookfield RVT Viscometer 1-spindle TC at5–20
D1084 Test Methods for Viscosity of Adhesives
rpms, Heliopath stand.
D1293 Test Methods for pH of Water
NOTE1—Otherviscometermodels,theirspeedandspindlesize,maybe
D2556 Test Method for Apparent Viscosity of Adhesives
utilized as long as they comply to Test Methods D1084 or D2556 and are
Having Shear-Rate-Dependent Flow Properties
recommended by the manufacturer for such use.
5.4 pH meter.
3. Terminology
5.5 Tongue depressor or similar.
3.1 Definitions:
3.1.1 Many of the terms utilized in this practice are defined
6. Conditioning
in Terminology D907.
6.1 Condition the adhesive to be tested 24 h at 23 6 -2°C
4. Significance and Use
(73 6 -4°F) with a relative humidity if 50 6 -5 % prior to
testing.
4.1 This practice will provide a procedure for determining
thestabilityofanadhesivetowithstandfiverepeatedcycles,or
7. Procedure
as otherwise specified, of freezing and thawing at a specific
temperature. 7.1 Fill the container with adhesive to be tested.
7.2 Checktheviscosityoftheadhesiveafteritistransferred
into the container, as defined in Test Methods D1084 (Method
This practice is under the jurisdiction ofASTM Committee D14 on Adhesives
B) or Test Method D2556.
and is the direct responsibility of Subcommittee D14.10 on Working Properties.
Current edition approved April 1, 2011. Published April 2011. Originally
7.3 Check the pH of the adhesive after it is transferred into
approved in 2005. Last previous edition approved in 2005 as D7149 - 05. DOI:
the container,
...