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ASTM

ASTM C731-00(2006)

(Test Method)

Standard Test Method for Extrudability, After Package Aging, of Latex Sealants

Standard Test Method for Extrudability, After Package Aging, of Latex Sealants

SIGNIFICANCE AND USE
Extrudability measurements of latex sealants serve to indicate only their ease of application; they do not predict the performance capability of the compound after installation.
This test method also measures freeze-thaw and heat stability of such sealants.
SCOPE
1.1 This test method covers a laboratory procedure for the determination of extrudability of latex sealants after freeze-thaw and heat cycling.
1.2 The values stated in metric (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 problems, 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
Currently there is no ISO standard similar to this test method.

General Information

Status
Historical
Publication Date
30-Apr-2006
ICS
91.100.50 - Binders. Sealing materials
Technical Committee
C24 - Building Seals and Sealants
Drafting Committee
C24.20 - General Test Methods
Current Stage
Ref Project

Relations

Replaces
ASTM C731-00 - Standard Test Method for Extrudability, After Package Aging, of Latex Sealants
Effective Date
01-May-2006
Replaced By
ASTM C731-00(2010) - Standard Test Method for Extrudability, After Package Aging, of Latex Sealants
Effective Date
01-Dec-2010
Referred By
ASTM C1193-16(2023) - Standard Guide for Use of Joint Sealants
Effective Date
01-May-2006
Referred By
ASTM C1021-08(2023) - Standard Practice for Laboratories Engaged in Testing of Building Sealants
Effective Date
01-May-2006

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ASTM C731-00(2006) - Standard Test Method for Extrudability, After Package Aging, of Latex SealantsASTM C731-00(2006) - Standard Test Method for Extrudability, After Package Aging, of Latex Sealants
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ASTM C731-00(2006) - Standard Test Method for Extrudability, After Package Aging, of Latex Sealants
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:C731–00(Reapproved2006)
Standard Test Method for
Extrudability, After Package Aging, of Latex Sealants
This standard is issued under the fixed designation C731; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 5. Significance and Use
1.1 This test method covers a laboratory procedure for the 5.1 Extrudability measurements of latex sealants serve to
determination of extrudability of latex sealants after freeze- indicate only their ease of application; they do not predict the
thaw and heat cycling. performance capability of the compound after installation.
1.2 The values stated in metric (SI) units are to be regarded 5.2 This test method also measures freeze-thaw and heat
as the standard. The values given in parentheses are for stability of such sealants.
information only.
6. Apparatus
1.3 This standard does not purport to address all of the
6.1 Caulking Gun, air-powdered.
safety problems, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 6.2 Polyethylene Cartridge, 6 fluid oz. and plunger.
6.3 Polyethylene Cartridge Nozzle,64mm(2 ⁄2 in.) in
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. length with 3-mm ( ⁄8-in.) orifice.
6.4 Air Compressor, capable of producing 50 psi (0.34
NOTE 1—CurrentlythereisnoISOstandardsimilartothistestmethod.
MPa).
6.5 Freezer, capable of maintaining−17 6 1°C (0 6 2°F).
2. Referenced Documents
2 6.6 Circulating Air Oven, capable of maintaining 50 6 1°C
2.1 ASTM Standards:
(122 6 2°F).
C717 Terminology of Building Seals and Sealants
6.7 Stop Watch, standard laboratory.
6.8 Analytical Balance, accurate to 1 g.
3. Terminology
6.9 Jar, approximately 0.5 L (1-pt).
3.1 Definition—Refer toTerminology C717 for definitions
6.10 Spatula.
of the following terms used in this test method: latex sealant,
sealant.
7. Sampling
7.1 Afterconditioningasspecifiedin8.1,takethesealantto
4. Summary of Test Method
betesteddirectlyfromacontainerascommerciallysuppliedby
4.1 After being subjected to 5 freeze-thaw cycles followed
the manufacturer.
by 7 days of heat aging, the sealant is extruded under pressure
from an air-powered caulking gun, and the extrudability is
8. Conditioning
measured in grams per second.
8.1 Subject the sealant in its original container to 5 freeze-
thaw cycles, each cycle consisting of 16 h at−176 1°C (0 6
ThistestmethodisunderthejurisdictionofASTMCommitteeC24onBuilding
2°F) and8hat23 6 1°C (73.46 2°F), followed by 7 days at
Seals and Sealants and is the direct responsibility of Subcommittee C24.20 on
50 6 1°C (122 6 2°F).
General Test Methods.
8.2 Condition the sealant which is still in its original
Current edition approved May 1, 2006. Published May 2006. Originally
container, for a minimum of 5 days at 23 6 1°C (73.4 6 2°F)
approved in 1972. Last previous edition approved in 2000 as C731–00. DOI:
10.1520/C0731-00R06.
and 50 6 5% relative humidity.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
8.3 Condition the polyethylene cartridge for a minimum of
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
16 h at the same conditions as specified in
...

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