ASTM C1536-03
(Test Method)Standard Test Method for Measuring the Yield for Aerosol Foam Sealants
Standard Test Method for Measuring the Yield for Aerosol Foam Sealants
SIGNIFICANCE AND USE
Yield measurement of aerosol foam sealants are used to indicate the amount of sealant that can be obtained from a single can of product.
The yield does not predict the performance capability of the foam sealant product or its suitability for the intended application.
Procedure A was developed for use with products that can be volumetrically measured by submersion in water. Procedure B was developed for product that cannot be measured by using a water displacement method.
Yield is often dependent on the bead size dispensed. Extrapolation of test results using data measured for larger size beads to estimate smaller sized beads has shown inaccuracies. Since yield will be reported based on the diameter of the cured bead (not initial bead size), the operator shall determine the nominal initial bead size required to produce a specific nominal cured bead diameter. This foam characteristic called “post dispensing contraction” or “post dispensing expansion” is defined in 3.1.3 and 3.1.4.
SCOPE
1.1 This test method covers the determination of the linear units of specified diameter bead of foam sealant that can be obtained from a single can of aerosol product. Four (4) cans are required for each product determination.
1.2 The method is intended to estimate the contents of the aerosol container (1) for purposes of label statements, and (2) to provide the user information needed to estimate job requirements.
1.3 Such foam sealants are used for a variety of end use applications intended to reduce air movement in the building envelope.
1.4 Currently two main foam sealant types are applicable to this standard, single component polyurethane and latex types.
1.5 There is no other known standard test method to measure aerosol foam sealant yield.
1.6 Values are reported in SI units only. Certain apparatus and supply items are referenced in inch-pound units for purchasing purposes.
1.7 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.
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Standards Content (Sample)
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Designation: C1536 – 03
Standard Test Method for
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Measuring the Yield for Aerosol Foam Sealants
This standard is issued under the fixed designation C1536; 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 3.1.2 empty aerosol can (of foam sealant)—the time at
which the product flow of the foam sealant is less than 2.0
1.1 This test method covers the determination of the linear
linear cm or 1.0 g of continuous foam bead during two
units of specified diameter bead of foam sealant that can be
continuous seconds of dispensing.
obtainedfromasinglecanofaerosolproduct.Four(4)cansare
3.1.3 post dispensing contraction—the decrease in the foam
required for each product determination.
bead diameter or height that can occur immediately after initial
1.2 The method is intended to estimate the contents of the
foam sealant dispensing up to final curing or drying of the
aerosol container (1) for purposes of label statements, and (2)
product.
to provide the user information needed to estimate job require-
3.1.4 post dispensing expansion—the increase in the foam
ments.
bead diameter or height that occurs immediately after initial
1.3 Such foam sealants are used for a variety of end use
foam sealant dispensing up to final curing or drying of the
applications intended to reduce air movement in the building
product.
envelope.
3.1.5 symbols—letter symbols are used to represent physi-
1.4 Currently two main foam sealant types are applicable to
cal measurements and are defined in Tables 1 and 2.
this standard, single component polyurethane and latex types.
3.1.6 yield—the yield for an aerosol can of foam sealant is
1.5 There is no other known standard test method to
the quantity of a specified nominal diameter of foam bead
measure aerosol foam sealant yield.
which is dispensed from a full can as defined by this test
1.6 Values are reported in SI units only. Certain apparatus
method.
and supply items are referenced in inch-pound units for
purchasing purposes.
4. Summary of Test Method
1.7 This standard does not purport to address all of the
4.1 Procedure A—Suitable for foams that can be measured
safety concerns, if any, associated with its use. It is the
by water displacement.
responsibility of the user of this standard to establish appro-
4.1.1 The middle 100 g of the aerosol can’s contents is
priate safety and health practices and determine the applica-
dispensed as a specified size of bead segments.
bility of regulatory limitations prior to use.
4.1.2 The dispensed foam volume is determined by measur-
2. Referenced Documents ing the volume of displaced water when the foam bead
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segments are submersed.
2.1 ASTM Standards:
4.1.3 The yield (defined as the total bead length of a
C717 Terminology of Building Seals and Sealants
specified nominal bead diameter of cured foam per can) is
3. Terminology calculated from the measured foam volume.
4.2 Procedure B—Suitable for foam sealants that cannot be
3.1 Definitions of Terms Specific to This Standard:
measured by water displacement.
3.1.1 aerosol foam sealant—foam sealant, which is dis-
4.2.1 The middle 100 g of the container’s contents is
pensed from any aerosol can, pressure cylinder or container,
dispensed as a specified size of bead segments.
intended to seal cracks or gaps.
4.2.2 The volume of the foam bead is directly measured
from the dried or cured foam bead segments by direct
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ThistestmethodisunderthejurisdictionofASTMCommitteeC24onBuilding
measurement. Yield is calculated from these measurements.
Seals and Sealants and is the direct responsibility of Subcommittee C24.61 on
Aerosol Foam Sealants.
NOTE 1—Procedure A uses tap water (see 11.10) to which 4.2 g of
Current edition approved Dec. 1, 2003. Published January 2004. Originally
Dioctyl Sodium Sulfosuccinate (70 % solids) and 1.2 g of SAG 10
approved in 2002. Last previous edition approved in 2002 as C1536–02. DOI:
defoamer per 4 litres may be added as wetting agent/defoamer blend.This
10.1520/C1536-03.
avoids false readings if air bubbles become a problem. The water is
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
maintained at 23 6 2°C during the submersion part of the test. It is
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
permissible for a single batch of water to be used up to 48 h.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
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C1536
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