ASTM D3574-01
(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
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.
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Standards Content (Sample)
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 3574 – 01
Standard Test Methods for
Flexible Cellular Materials—Slab, Bonded, and Molded
1
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.
this document is referenced in the Precision and Bias section.
1. Scope *
1.1 These test methods apply to slab, bonded, and molded
3. Terminology
flexible cellular products known as urethane foams. Urethane
3.1 Definitions of Terms Specific to This Standard:
foam may be generally defined as an expanded cellular product
3.1.1 bonded foam—a product produced by the adhesion of
produced by the interaction of active hydrogen compounds,
small pieces of urethane foam to each other with a suitable
water, and isocyanates.
bonding agent.
1.2 This standard does not purport to address all of the
3.1.2 core—the internal portion of a molded part, free of
safety concerns, if any, associated with its use. It is the
skin.
responsibility of the user of this standard to establish appro-
3.1.3 cored foam—a flexible cellular material containing a
priate safety and health practices and determine the applica-
multiplicity of holes (usually, but not necessarily, cylindrical in
bility of regulatory limitations prior to use.
shape), molded or cut into the material in some pattern,
1.3 The values stated in SI units are to be regarded as
normally perpendicular to the foam rise direction, and extend-
standard.
ing part or all the way through the piece
NOTE 1—There is no equivalent ISO standard, however certain test
3.1.4 convoluted foam—a flexible cellular material spe-
methods in this standard have similar or equivalent ISO standards and are
cially cut into sheets with “egg carton”-like dimples. The
listed in the Scope of the individual test method sections.
dimple peaks and bases can have varied shapes and dimen-
sions.
2. Referenced Documents
3.1.5 flexible cellular product—a cellular organic polymeric
2.1 ASTM Standards:
material that will not rupture when a specimen 200 by 25 by 25
D 412 Test Methods for Vulcanized Rubber and Thermo-
mm is bent around a 25-mm diameter mandrel at a uniform rate
2
plastic Rubbers and Thermoplastic Elastomers— Tension
of1lap in5sata temperature between 18 and 29°C.
D 624 Test Method for Tear Strength of Conventional
3.1.6 molded foam—a cellular product having the shape of
2
Vulcanized Rubber and Thermoplastic Elastomers
the enclosed chamber in which it is produced by foaming.
D 726 Test Method for Resistance of Nonporous Paper to
3.1.7 skin—the smooth surface layer of a molded foam
3
Passage of Air
product, formed by contact with the mold or surfaces.
4
D 737 Test Method for Air Permeability of Textile Fabrics
3.1.8 slab—a section of foam that is cut from the internal
D 3675 Test Method for Surface Flammability of Flexible
portion of a large bun.
5
Cellular Materials Using a Radiant Heat Energy Source
3.1.9 urethane foam—a flexible cellular product produced
E 691 Practice for Conducting an Interlaboratory Study to
by the interaction of active hydrogen compounds, water, and
6
Determine the Precision of a Test Method
isocyanates.
NOTE 2—The specific dated edition of Practice E 691 that prevails in
4. Summary of Test Methods
4.1 Unless specifically stated otherwise between the sup-
1
These test methods are under the jurisdiction of ASTM Committee D20 on
plier and the purchaser, all tests shall be made in accordance
Plastics and are the direct responsibility of Subcommittee D20.22 on Cellular
with the methods specified in Sections 9-124 which include test
Materials-Plastics and Elastomers.
procedures for the following:
Current edition approved November 10, 2001. Published January 2002. Origi-
nally published as D 3574 – 77. Last previous edition D 3574 – 95.
Tests: Sections
2
Annual Book of ASTM Standards, Vol 09.01.
Test A Density Test 9-15
3
Annual Book of ASTM Standards, Vol 15.09.
Test B Indentation Force Deflection Test—Specified
1
4
Annual Book of ASTM Standards, Vol 07.01.
Deflection 16-22
5
Annual Book of ASTM Standards, Vol 08.02.
6
Annual Book of ASTM Standards, Vol 14.02.
*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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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
D3574–01
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