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ASTM D1055-04

(Specification)

Standard Specifications for Flexible Cellular Materials-Latex Foam

Standard Specifications for Flexible Cellular Materials-Latex Foam

ABSTRACT
These specifications, including test methods, apply to flexible cellular rubber products known as latex foam rubbers but do not apply to sponge and expanded rubbers. The base material used in their manufacture shall be natural rubber, reclaimed rubber, synthetic rubber, alone or in combination. The structure of latex foam rubbers consists of a network of open or interconnecting cells. Latex foam rubbers are made from rubber latices or liquid rubbers. They are manufactured in sheet, strip, molded, or specific shapes. Latex foam rubbers shall have a vulcanized cellular structure with a porous surface. The cells shall be interconnecting and of a uniform character. Latex foam rubbers shall be either cored or solid. Latex foam rubbers shall have their grade numbers designated by two letters which identify the kind of latex foam rubber as follows: RC for latex foam rubbers cored and RU for latex foam rubbers uncored. Digits following the letters are used to indicate the degree of firmness, the softer grades being identified with the lower numbers and the firmer grades with the higher numbers. These rubbers shall be subjected to the following tests: accelerated aging test, compression set under constant deflection test, flexing test, low temperature test, and static fatigue test.
SCOPE
1.1 These specifications, including test methods, apply to flexible cellular rubber products known as latex foam rubbers but do not apply to sponge and expanded rubbers. The base material used in their manufacture shall be natural rubber, reclaimed rubber, synthetic rubber, alone or in combination.
1.2 In case of conflict between the provisions of these general specifications and those of detailed specifications or test methods for a particular product, the latter shall take precedence. Reference to methods for testing cellular rubber products should specifically state the particular test or tests desired.
1.3 The values stated in SI units are to be regarded as the standard. The values in brackets are for information only.
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.

General Information

Status
Historical
Publication Date
31-Oct-2004
ICS
83.040.10 - Latex and raw rubber
83.100 - Cellular materials
Technical Committee
D20 - Plastics
Drafting Committee
D20.22 - Cellular Materials - Plastics and Elastomers
Current Stage
Ref Project

Relations

Replaces
ASTM D1055-97 - Standard Specifications for Flexible Cellular Materials-Latex Foam
Effective Date
01-Nov-2004
Replaced By
ASTM D1055-09 - Standard Specifications for Flexible Cellular Materials-Latex Foam (Withdrawn 2014)
Effective Date
01-Nov-2009
Referred By
ASTM D6576-20 - Standard Specification for Flexible Cellular Rubber Chemically Blown
Effective Date
01-Nov-2004

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ASTM D1055-04 - Standard Specifications for Flexible Cellular Materials-Latex FoamASTM D1055-04 - Standard Specifications for Flexible Cellular Materials-Latex Foam
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ASTM D1055-04 - Standard Specifications for Flexible Cellular Materials-Latex Foam
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information.
Used in USDOE-NE Standards
Designation: D1055 – 04
Standard Specifications for
1
Flexible Cellular Materials—Latex Foam
This standard is issued under the fixed designation D1055; 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 (´) 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* D573 Test Method for Rubber—Deterioration in an Air
2 Oven
1.1 These specifications, including test methods, apply to
D1056 Specification for Flexible Cellular Materials—
flexible cellular rubber products known as latex foam rubbers
,
Sponge or Expanded Rubber
but do not apply to sponge and expanded rubbers. The base
D3182 Practice for Rubber—Materials, Equipment, and
material used in their manufacture shall be natural rubber,
Procedures for Mixing Standard Compounds and Prepar-
reclaimed rubber, synthetic rubber, alone or in combination.
ing Standard Vulcanized Sheets
1.2 In case of conflict between the provisions of these
D3183 Practice for Rubber—Preparation of Pieces for Test
general specifications and those of detailed specifications or
Purposes from Products
test methods for a particular product, the latter shall take
precedence. Reference to methods for testing cellular rubber
3. Terminology
products should specifically state the particular test or tests
3.1 Definitions of Terms Specific to This Standard:
desired.
3.1.1 flexible cellular rubber—a cellular organic polymeric
1.3 The values stated in SI units are to be regarded as the
material that will not rupture within 60 s when a specimen 200
standard. The values in parentheses are for information only.
by 25 by 25 mm is bent around a 25-mm diameter mandrel at
1.4 This standard does not purport to address all of the
a uniform rate to produce 1 lap in5sinthe form of a helix at
safety concerns, if any, associated with its use. It is the
a temperature between 18 and 29°C.
responsibility of the user of this standard to establish appro-
3.1.2 rubber—the term rubber is used to include both
priate safety and health practices and determine the applica-
natural and synthetic types.
bility of regulatory limitations prior to use.
3.1.3 skin—the smooth surface of the latex foam rubber
2. Referenced Documents product, formed by contact with the mold or cover plates, is
3 defined as a natural skin.
2.1 ASTM Standards:
D395 TestMethodsforRubberProperty—CompressionSet
4. Materials and Manufacture
D454 Test Method for Rubber Deterioration by Heat and
4.1 Latex Foam Rubbers—The structure of latex foam
Air Pressure
rubbers consists of a network of open or interconnecting cells.
D572 Test Method for Rubber—Deterioration by Heat and
Latex foam rubbers are made from rubber latices or liquid
Oxygen
rubbers. They are manufactured in sheet, strip, molded, or
specific shapes. Latex foam rubbers shall have a vulcanized
1
These specifications are under the jurisdiction of ASTM Committee D20 on
cellular structure with a porous surface. The cells shall be
Plastics and are the direct responsibility of Subcommittee D20.22 on Cellular
interconnectingandofauniformcharacter.Latexfoamrubbers
Materials - Plastics and Elastomers.
shall be either cored or solid. Size, shape, and distribution of
Current edition approved Nov. 1, 2004. Published November 2004. Originally
approved in 1969. Last previous edition approved in 1997 as D1055-97. DOI:
coring shall be at the producer’s option but subject to the
10.1520/D1055-04.
approval of the purchaser.
2
These specifications together with Specification D1056 replace the former
Tentative Methods of Testing Cellular Rubber Products (D552 – 46a T) and the
5. Grades of Latex Foam Rubbers
Tentative Specifications for Cellular Rubber Products (D798 – 46a T), which were
accordingly discontinued in 1949.
5.1 Latex foam rubbers shall have their grade numbers
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
designated by two letters which identify the kind of latex foam
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
rubber as follows:
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. RC—Latex foam rubbers, cored, and
*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.
1

---------------------- Page: 1 ----------------------
D1055 – 04
RU—Latex foam rubbers, uncored. 6. Physical Properties
Digits following the letters are used to indicate the degree of
6.1 The various grades of latex foam rubber shall conform
firmness, the
...

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SCOPE
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