ASTM D3676-96a
(Specification)Standard Specification for Rubber Cellular Cushion Used for Carpet or Rug Underlay
Standard Specification for Rubber Cellular Cushion Used for Carpet or Rug Underlay
SCOPE
1.1 This specification covers high-density cellular rubber adhered to carpet, rugs, or various substrates for use as separate underlay. This standard may also be used as a specification for separately blown sponge used as carpet underlay.
1.2 This specification provides material and dimensional requirements and test methods for specific properties of compression set, compression resistance, delamination strength, and accelerated aging.
Note 1--This specification does not include requirements for burning characteristics. It shall be noted that Flammable Fabrics Act Regulations FF1-70, Standard for the Surface Flammability of Carpets and Rugs, and FF2-70, Standard for the Surface Flammability of Small Carpets and Rugs, may be applicable for carpets and rugs with integral backing of rubber cellular cushion.
1.3 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.
Note 2--There is no similar or equivalent ISO standard.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
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Designation: D 3676 – 96a
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
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Rubber Cellular Cushion Used for Carpet or Rug Underlay
This standard is issued under the fixed designation D 3676; 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.
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1. Scope D 3767 Practice for Rubber—Measurement of Dimensions
2.2 Federal Standard:
1.1 This specification covers high-density cellular rubber
Fed. Std. No. 191 Textile Test Methods, Method 5100—
adhered to carpet, rugs, or various substrates for use as separate
Breaking Strength and Elongation of Woven Cloth; Grab
underlay.
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Method
NOTE 1—This specification does not cover separately blown sponge.
3. Significance and Use
1.2 This specification provides material and dimensional
3.1 The purpose of this specification is to provide meaning-
requirements and test methods for specific properties of com-
pression set, compression resistance, delamination strength, ful tests for rubber cellular cushion used for carpet or rug
underlay.
and accelerated aging.
NOTE 2—This specification does not include requirements for burning
4. Classification
characteristics. It should be noted that Flammable Fabrics Act Regulations
4.1 The following classes of flexible, cellular, high-density
FF1-70, Standard for the Surface Flammability of Carpets and Rugs, and
rubber adhered to carpets, rugs, and separate substrates are
FF2-70, Standard for the Surface Flammability of Small Carpets and
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Rugs, may be applicable for carpets and rugs with integral backing of covered.
rubber cellular cushion.
4.1.1 Class A, for moderate traffic use within one and two
family, multi-family, and care-type dwelling units. Moderate
1.3 The following safety hazards caveat pertains to Sections
traffic areas are areas such as living rooms, dining rooms,
9-16 of this standard. This standard does not purport to
bedrooms, and recreation rooms.
address all of the safety concerns, if any, associated with its
4.1.2 Class B, for heavy traffic use for public areas such as
use. It is the responsibility of the user of this standard to
lobbies and corridors of multifamily and care-type facilities;
establish appropriate safety and health practices and deter-
entrances, stairways, and elevators.
mine the applicability of regulatory limitations prior to use.
NOTE 3—There is no similar or equivalent ISO standard.
5. Physical Requirements
5.1 The material shall conform to the requirements for
2. Referenced Documents
physical properties prescribed in Table 1.
2.1 ASTM Standards:
D 395 Test Methods for Rubber Property—Compression
6. Sampling and Sample Preparation
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Set
6.1 Select representative samples of the lot being examined
D 573 Test Method for Rubber—Deterioration in an Air
at random as required.
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Oven
6.2 Each sample shall consist of a 200-mm (8-in.) wide strip
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D 751 Test Methods for Coated Fabrics
taken across the full width of the finished rug, carpet or
D 1056 Specification for Flexible Cellular Materials—
underlayment, or other substrate. For narrow products such as
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Sponge or Expanded Rubber
runners, it may be necessary to use a strip 300 mm (12 in.) or
D 3574 Test Methods for Flexible Cellular Materials—Slab,
more to furnish all the test specimens. If the product is not
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Bonded, and Molded Urethane Foams
homogeneous across the full width, reject the sample and
obtain another sample. Prior to cutting, read the sample
1 requirements so as to plan the cutting pattern properly.
This specification is under the jurisdiction of ASTM Committee D-20 on
6.3 Mark off 150 mm (6 in.) from the outer edges of the
Plastics and is the direct responsibility of Subcommittee D20.22 on Cellular
Plastics.
sample and cut all specimens from inside these lines. Divide
Current edition approved July 10, 1996. Published February 1997. Originally
this inside width into three approximately equal parts. After
published as D 3676 – 78. Last previous edition D 3676 – 96.
cutting the specimens, identify the originating area on the foam
This edition includes the addition of an ISO equivalency statement, crosshead
speed for the compression resistance test, modified recovery time in the compres-
side.
sion set test, and keywords.
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Code of Federal Regulations, Vol 16, Chapter II, Parts 1630 and 1632.
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Annual Book of ASTM Standards, Vol 09.01. Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700
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Annual Book of ASTM Standards, Vol 09.02. Robbins Ave., Philadelphia, PA 19111–5094, Attn: NPODS.
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