ASTM D3574-05
(Test Method)Standard Test Methods for Flexible Cellular Materials—Slab, Bonded, and Molded Urethane Foams
Standard Test Methods for Flexible Cellular Materials—Slab, Bonded, and Molded Urethane Foams
SIGNIFICANCE AND USE
The test procedures provide a standard method of obtaining data for research and development, quality control, acceptance and rejection under specifications, and special purposes.
The data obtained by these test methods are applicable to the material under conditions of the particular test and are not necessarily the same as obtained in other environments in use.
SCOPE
1.1 These test methods apply to slab, bonded, and molded flexible cellular products known as urethane foams. Urethane foam may be generally defined as an expanded cellular product produced by the interaction of active hydrogen compounds, water, and isocyanates.
1.2 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.
1.3 The values stated in SI units are to be regarded as standard.
Note 1—There is no equivalent ISO standard, however certain test methods in this standard have similar or equivalent ISO standards and are listed in the scope of the individual test method sections.
General Information
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Standards Content (Sample)
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Designation:D3574–05
Standard Test Methods for
Flexible Cellular Materials—Slab, Bonded, and Molded
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Urethane Foams
This standard is issued under the fixed designation D 3574; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* E 691 Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method
1.1 These test methods apply to slab, bonded, and molded
flexible cellular products known as urethane foams. Urethane
3. Terminology
foam may be generally defined as an expanded cellular product
3.1 Definitions of Terms Specific to This Standard:
produced by the interaction of active hydrogen compounds,
3.1.1 bonded foam—a product produced by the adhesion of
water, and isocyanates.
small pieces of urethane foam to each other with a suitable
1.2 This standard does not purport to address all of the
bonding agent.
safety concerns, if any, associated with its use. It is the
3.1.2 core—the internal portion of a molded part, free of
responsibility of the user of this standard to establish appro-
skin.
priate safety and health practices and determine the applica-
3.1.3 cored foam—a flexible cellular material containing a
bility of regulatory limitations prior to use.
multiplicity of holes (usually, but not necessarily, cylindrical in
1.3 The values stated in SI units are to be regarded as
shape), molded or cut into the material in some pattern,
standard.
normally perpendicular to the foam rise direction, and extend-
NOTE 1—There is no equivalent ISO standard, however certain test
ing part or all the way through the piece
methods in this standard have similar or equivalent ISO standards and are
3.1.4 convoluted foam—a flexible cellular material spe-
listed in the scope of the individual test method sections.
cially cut into sheets with “egg carton”-like dimples. The
dimple peaks and bases can have varied shapes and dimen-
2. Referenced Documents
sions.
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2.1 ASTM Standards:
3.1.5 flexible cellular product—a cellular organic polymeric
D 412 Test Methods for Vulcanized Rubber and Thermo-
materialthatwillnotrupturewhenaspecimen200by25by25
plastic Elastomers—Tension
mmisbentarounda25-mmdiametermandrelatauniformrate
D 624 Test Method for Tear Strength of Conventional
ofonelapin5sata temperature between 18 and 29°C.
Vulcanized Rubber and Thermoplastic Elastomers
3.1.6 molded foam—a cellular product having the shape of
D 726 Test Method for Resistance of Nonporous Paper to
the enclosed chamber in which it is produced by foaming.
Passage of Air
3.1.7 skin—the smooth surface layer of a molded foam
D 737 Test Method for Air Permeability of Textile Fabrics
product, formed by contact with the mold or surfaces.
D 3675 Test Method for Surface Flammability of Flexible
3.1.8 slab—a section of foam that is cut from the internal
Cellular Materials Using a Radiant Heat Energy Source
portion of a large bun.
E 162 Test Method for Surface Flammability of Materials
3.1.9 urethane foam—a flexible cellular product produced
Using a Radiant Heat Energy Source
by the interaction of active hydrogen compounds, water, and
E 662 Test Method for Specific Optical Density of Smoke
isocyanates.
Generated by Solid Materials
3.1.10 viscoelastic foam—a specially formulated urethane
foam characterized by having slow recovery, low resilience,
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These test methods are under the jurisdiction of ASTM Committee D20 on
and high hysteresis loss.
Plastics and are the direct responsibility of Subcommittee D20.22 on Cellular
Materials-Plastics and Elastomers.
4. Summary of Test Methods
Current edition approved July 1, 2005. Published August 2005. Originally
4.1 Unless specifically stated otherwise between the sup-
approved in 1977. Last previous edition approved in 2003 as D 3574 – 03.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
plier and the purchaser, all tests shall be made in accordance
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
withthemethodsspecifiedinSections9-124whichincludetest
Standards volume information, refer to the standard’s Document Summary page on
procedures for the following:
the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D3574–05
differentpartsofthefinishedproduct,especiallyifthearticleis
Tests: Sections
Test A Density Test 9-15
of complicated shape or of varying thick
...
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