ASTM D1056-00

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Designation: D 1056 – 00
Standard Specification for
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Flexible Cellular Materials—Sponge or Expanded Rubber
This standard is issued under the fixed designation D1056; 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 (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 to replace Methods 12001, 12005, 12011, 12021,
12031, 12041, 12151, and 12411 of Federal Test Method Standard No. 601.
This standard has been approved for use by agencies of the Department of Defense to replace MIL-STD-670 and MIL-STD-C 3133,
which were discontinued in 1986.
1. Scope 2. Referenced Documents
1.1 This specification covers flexible cellular rubber prod- 2.1 ASTM Standards:
ucts known as sponge rubber and expanded rubber, but does D395 Test Methods for Rubber Property—Compression
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not apply to latex foam rubber or ebonite cellular rubber. The Set
base material for an open/closed cellular product may be made D412 Test Methods for Vulcanized Rubber and Thermo-
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of synthetic, natural, or reclaimed rubber, or a mixture, and plastic Rubbers and Thermoplastic Elastomers—Tension
may contain other polymers or chemicals, or both, which may D471 Test Method for Rubber Property—Effect of Liq-
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be modified by organic or inorganic additives. These elasto- uids
meric materials have properties similar to those of vulcanized D573 Test Method for Rubber—Deterioration in an Air
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rubber, namely (1) the ability to be converted from a thermo- Oven
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plastic to a thermosetting state by crosslinking (vulcanization) D575 TestMethodsforRubberPropertiesinCompression
or (2) the substantial recovery of their original shapes when D 832 Practice for Rubber Conditioning for Low-
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strained or elongated, or both. Temperature Testing
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1.2 Extrudedormoldedshapesofsizestoosmallforcutting D883 Terminology Relating to Plastics
standard test specimens are difficult to classify or test by these D1171 Test Method for Rubber Deterioration—Surface
methods and will usually require special testing procedures. Ozone Cracking Outdoors or Chamber (Triangular Speci-
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1.3 Incaseofconflictbetweentheprovisionsofthisgeneral mens)
specification and those of detailed specifications or test meth- D3182 Practice for Rubber—Materials, Equipment, and
ods for a particular product, the latter shall take precedence. Procedures for Mixing Standard Compounds and Prepar-
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Reference to the test methods in this specification should ing Standard Vulcanized Sheets
specifically state the particular test or tests desired. D3183 Practice for Rubber—Preparation of Pieces forTest
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1.4 The values stated in SI units are to be regarded as the Purposes from Products
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standard. 2.2 ISO Standard:
1.5 The following safety hazards caveat pertains only to the ISO 6916-1 Flexible Cellular Polymeric Materials: Sponge
test methods portions of this specification: This standard does and Expanded Cellular Rubber Products—Specification
not purport to address all of the safety concerns, if any, Part 1 Sheet
associated with its use. It is the responsibility of the user of this
3. Terminology
standard to establish appropriate safety and health practices
and determine the applicability of regulatory limitations prior 3.1 Definitions—See Terminology D 883.
3.2 Definitions of Terms Specific to This Standard:
to use.
3.2.1 cellular material—a generic term for materials con-
NOTE 1—ISO6916-1 is similar to this specification.
taining many cells (either open or closed, or both) dispersed
throughout the mass.
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This specification is under the jurisdiction of ASTM Committee D20 on
Plastics and is the direct responsibility of Subcommittee D20.22 on Cellular
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Materials - Plastics and Elastomers. Annual Book of ASTM Standards, Vol 09.01.
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Current edition approved April 10, 2000. Published July 2000. Originally Annual Book of ASTM Standards, Vol 08.01.
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published as D1056–49T. Last previous edition D1056–98. Available from American National Standards Institute, 11 W. 42nd St., 13th
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This version supercedes all prior versions of this specification. Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D1056–00
3.2.2 closed cell—aproductwhosecellsaretotallyenclosed aloneorincombination,wherespecificresistancetotheaction
by its walls and hence not interconnecting with other cells. of petroleum base oils is not required.
4.2.2 Class B—Cellular rubber made from synthetic rubber
3.2.3 expanded rubber—cellular rubber having closed cells
made from a solid rubber
...