ASTM C972-00(2006)
(Test Method)Standard Test Method for Compression-Recovery of Tape Sealant
Standard Test Method for Compression-Recovery of Tape Sealant
SIGNIFICANCE AND USE
Tape sealants are tacky, deformable solids used under compression between two or more surfaces of similar or dissimilar materials in a variety of sealing applications. This procedure presents an indication of the compression recovery characteristics of preformed tapes.
SCOPE
1.1 This test method describes a laboratory procedure for determining compression-recovery characteristics of tape sealant.
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 his 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.Note 1
There are no ISO standards similar or equivalent to this ASTM standard.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
Designation:C972–00(Reapproved2006)
Standard Test Method for
Compression-Recovery of Tape Sealant
This standard is issued under the fixed designation C972; 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 5.2 Steel Panels, two, cold-rolled, each 0.762 by 76.2 by
76.2 mm (0.03 by 3 by 3 in.).
1.1 This test method describes a laboratory procedure for
determining compression-recovery characteristics of tape seal-
NOTE 2—Substitutes such as aluminum, acrylic, acrylonitrile-
ant.
butadiene-styrene (ABS), may be substituted for the plates (5.1) and
panels (5.2).
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
5.3 Compression Testing Machine, with a cross-head speed
only.
of 50 mm (2 in.)/min and capable of stopping at specified
1.3 This standard does not purport to address all of the
settings.
safety concerns, if any, associated with its use. It is the
NOTE 3—Load values may differ when determined on screw-type
responsibility of the user of this standard to establish appro-
versus spring-type test machines due to a drift past the desired stop in the
priate safety and health practices and determine the applica-
spring-type machine. It may be necessary to use shims to obtain the
bility of regulatory limitations prior to use.
desired stop.
NOTE 1—There are no ISO standards similar or equivalent to this
5.4 Recorder, for recording compression loads in newtons
ASTM standard.
(or pounds-force).
5.5 Stop Watch, measuring in minutes and seconds.
2. Referenced Documents
5.6 Gage or Rule, capable of measuring tape thickness to
2.1 ASTM Standards:
0.025 mm or 0.001 in.
C717 Terminology of Building Seals and Sealants
6. Test Specimen and Sample
3. Terminology
6.1 Conditioning:
3.1 Definitions—For definitions of terms used in this test
6.1.1 Condition the specimens for 24 h at 23 6 2°C (73.4 6
method, refer to Terminology C717.
3.6°F) and 506 10 % relative humidity.
6.1.2 Other conditioning parameters may be included as
4. Significance and Use
desired.
4.1 Tape sealants are tacky, deformable solids used under
6.2 Samples to be tested shall be taken from a roll or tape
compression between two or more surfaces of similar or
sealant after first removing and discarding approximately the
dissimilar materials in a variety of sealing applications. This
first 0.6 m (2 ft) of the roll.
procedure presents an indication of the compression recovery
6.3 Tapesealantconfigurationshouldbeapproximately9.53
characteristics of preformed tapes.
by 9.53 by 76.2 mm (0.375 by 0.375 by 3 in.). The sample
should be re-extruded rather than plied to conform to the
5. Apparatus
specified size if the sample does not approximate these
5.1 Glass Plates, two, each 6.35 by 76.2 by 76.2 mm (0.25
dimensions.
by 3 by 3 in.).
6.4 Total tape volume (V) should be calculated (width by
length by thickness) for determination of tape sealant compres-
sion index.
ThistestmethodisunderthejurisdictionofASTMCommitteeC24onBuilding
6.5 Prepare two test specimens for each sample as follows:
Seals and Sealants and is the direct responsibility of Subcommittee C24.20 on
6.5.1 Do not clean or unnecessarily handle the surfaces of
General Test Methods.
surface-treated or painted plate or panels.
Current edition approved May 1, 2006. Published May 2006. Originally
6.5.2 Clean plates or panels with detergent or solvent, or
approved in 1982. Last previous edition approved in 2000 as C972 – 00. DOI:
10.1520/C0972-00R06.
both.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.5.3 Place two 76.2 by 9.53 by 9.53-mm (3 by 0.375 by
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
0.375-in.) lengths of tape sealant on one of the plates or panels,
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. as shown in Fig. 1, and remove the
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.