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    ASTM D6576 - 20

    Standard Specification for Flexible Cellular Rubber Chemically Blown

    Active Standard ASTM D6576 | Developed by Subcommittee: D20.22

    Book of Standards Volume: 08.03

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    This specification establishes requirements for chemically blown cellular rubber. Cellular rubber may be classified into two types: Type I which is open cell or sponge rubber and Type II which is closed cell or expanded rubber. Both types are divided into three grades: Grade A which is oil-and flame-resistant, Grade B which has no requirements for oil ,flame resistance, or low temperature, and Grade C which is low-temperature resistant. Each type and class has been divided into three different conditions. Each condition is based on a specific range of firmness as expressed by compression deflection as follows: super soft, soft, soft-medium, medium, medium-firm, and firm conditions. Several tests shall be performed in order to determine the following physical properties of cellular rubber: compression deflection, low-temperature resistance, accelerated aging, recovery, flame resistance, shrinkage, water absorption, oil aging, and color.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification establishes requirements for chemically blown cellular rubber.

    1.2 In the case of conflict between the provisions of this specification and those of detailed specifications or test methods for a particular product, the latter shall take precedence.

    1.3 Unless specifically stated otherwise, by agreement between the purchaser and the supplier, all test methods shall be performed in accordance with the test methods specified in this specification.

    1.4 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only.

    1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    1.6 There is no known ISO equivalent to this specification.

    Note 1: This specification was revised using the updated test methods and specifications in the latest version of Specification D1056.

    1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D297 Test Methods for Rubber ProductsChemical Analysis

    D471 Test Method for Rubber PropertyEffect of Liquids

    D635 Test Method for Rate of Burning and/or Extent and Time of Burning of Plastics in a Horizontal Position

    D883 Terminology Relating to Plastics

    D1055 Specifications for Flexible Cellular Materials--Latex Foam

    D1056 Specification for Flexible Cellular Materials--Sponge or Expanded Rubber

    E176 Terminology of Fire Standards

    E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods

    E456 Terminology Relating to Quality and Statistics

    E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

    E2935 Practice for Conducting Equivalence Testing in Laboratory Applications

    Military Standards/Specifications

    MIL R 6130C Standard Specification for Flexible Cellular Rubber Chemically Blown

    MIL STD 105

    MIL STD 129 Marking for Shipment and Storage

    MIL STD 293 Visual Inspection Guide for Cellular Rubber Items

    SAE Standard

    SAE J 1351-1993 Hot Odor Test for Insulation Materials

    ICS Code

    ICS Number Code 83.100 (Cellular materials)

    UNSPSC Code

    UNSPSC Code

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D6576-20

    Citation Format

    ASTM D6576-20, Standard Specification for Flexible Cellular Rubber Chemically Blown, ASTM International, West Conshohocken, PA, 2020, www.astm.org

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