ASTM D7149-05(2021)
(Practice)Standard Practice for Determining the Freeze Thaw Stability of Adhesives
Standard Practice for Determining the Freeze Thaw Stability of Adhesives
SIGNIFICANCE AND USE
4.1 This practice will provide a procedure for determining the stability of an adhesive to withstand five repeated cycles, or as otherwise specified, of freezing and thawing at a specific temperature.
4.2 This practice will allow the user to determine whether or not the adhesive can be appropriately applied after cycling of freezing and thawing.
4.3 This practice will identify any significant changes in the manufactured viscosity of the product after five cycles, or as otherwise specified, of freezing and thawing at a specific temperature.
4.4 This practice will help determine if the pH of adhesive has changed significantly due to the freezing and thawing cycles.
SCOPE
1.1 This practice determines the ability of an adhesive to withstand repeated freezing and thawing cycles at specific temperatures without any significant change in physical properties.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D7149 − 05 (Reapproved 2021)
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.
1. Scope 4. Significance and Use
1.1 This practice determines the ability of an adhesive to 4.1 This practice will provide a procedure for determining
withstand repeated freezing and thawing cycles at specific thestabilityofanadhesivetowithstandfiverepeatedcycles,or
temperatures without any significant change in physical prop- as otherwise specified, of freezing and thawing at a specific
erties. temperature.
1.2 The values stated in SI units are to be regarded as the 4.2 Thispracticewillallowtheusertodeterminewhetheror
standard. The values given in parentheses are for information not the adhesive can be appropriately applied after cycling of
only. freezing and thawing.
1.3 This standard does not purport to address all of the
4.3 This practice will identify any significant changes in the
safety concerns, if any, associated with its use. It is the
manufactured viscosity of the product after five cycles, or as
responsibility of the user of this standard to establish appro-
otherwise specified, of freezing and thawing at a specific
priate safety, health, and environmental practices and deter-
temperature.
mine the applicability of regulatory limitations prior to use.
4.4 This practice will help determine if the pH of adhesive
1.4 This international standard was developed in accor-
has changed significantly due to the freezing and thawing
dance with internationally recognized principles on standard-
cycles.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- 5. Apparatus
mendations issued by the World Trade Organization Technical
5.1 A 1.0 L (1 qt) container, or larger, with lid. Other
Barriers to Trade (TBT) Committee.
container sizes may be applicable for some adhesives.
5.2 Freezer capable of maintaining -18 6 -2°C (0.0 6 -5°F)
2. Referenced Documents
to -7 6 -2°C (20 6 -5°F).
2.1 ASTM Standards:
5.3 Brookfield RVT Viscometer 1-spindle TC at5–20
D907 Terminology of Adhesives
rpms, Heliopath stand.
D1084 Test Methods for Viscosity of Adhesives
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
recommended by the manufacturer for such use.
Having Shear-Rate-Dependent Flow Properties Using Ro-
tational Viscometry
5.4 pH meter.
5.5 Tongue depressor or similar.
3. Terminology
6. Conditioning
3.1 Definitions:
3.1.1 Many of the terms utilized in this practice are defined 6.1 Condition the adhesive to be tested 24 h at 23 6 -2°C
in Terminology D907. (73 6 -4°F) with a relative humidity if 50 6 -5 % prior to
testing.
7. Procedure
This practice is under the jurisdiction ofASTM Committee D14 on Adhesives
7.1 Fill the container with adhesive to be tested.
and is the direct responsibility of Subcommittee D14.10 on Working Properties.
Current edition approved April 1, 2021. Published April 2021. Originally
7.2 Checktheviscosityoftheadhesiveafteritistransferred
approved in 2005. Last previous edition approved in 2016 as
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.