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ASTM D1056 - 20
Standard Specification for Flexible Cellular Materials—Sponge or Expanded Rubber
| Fecha edición: |
2020-10-01
En Vigor
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|---|---|
| Idiomas disponibles: | Inglés |
| Resumen: | This specification covers flexible cellular rubber products known as sponge rubber and expanded rubber, but does not apply to latex foam rubber or ebonite cellular rubber. The base material for an open/closed cellular product may be made of synthetic, natural, or reclaimed rubber, or a mixture, and may contain other polymers or chemicals, or both, which may be modified by organic or inorganic additives. The cellular rubber shall be categorized by types, classes, suffixes, and grades: Types 1 and 2; Classes A, B, C, and D; Grades 0, 1, 2, 3, 4, and 5. The various grades of cellular rubber shall conform to the requirements as to physical properties specified. The following test methods shall be performed: accelerated aging tests; compression-deflection tests; oil-immersion test (open-cell sponge); fluid immersion tests (closed cell); water absorption test; density tests; and low-temperature flex test. |
| Keywords: | expanded rubber; flexible cellular; sponge; |
| Scope: | 1.1 This specification covers flexible cellular rubber products known as sponge rubber and expanded rubber, but does not apply to latex foam rubber or ebonite cellular rubber. The base material for an open/closed cellular product may be made of synthetic, natural, or reclaimed rubber, or a mixture, and may contain other polymers or chemicals, or both, which may be modified by organic or inorganic additives. These elastomeric materials have properties similar to those of vulcanized rubber, namely (1) the ability to be converted from a thermoplastic to a thermosetting state by crosslinking (vulcanization) or (2) the substantial recovery of their original shapes when strained or elongated, or both. 1.2 Extruded or molded shapes of sizes too small for cutting standard test specimens are difficult to classify or test by these methods and will usually require special testing procedures. 1.3 In case of conflict between the provisions of this general specification and those of detailed specifications or test methods for a particular product, the latter shall take precedence. Reference to the test methods in this specification should specifically state the particular test or tests desired. 1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.5 The following safety hazards caveat pertains only to the test methods portions of this specification: 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. Note 1: ISO 6916-1 is similar to this specification. 1.6 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. |
| ICS: | 83.060 - Elastómeros, 83.100 - Materiales celulares |
| CTN: | D20.22 - D20.22 |
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Anulaciones Normas |
Anula a D1056-14 |
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Otras Relaciones |
Es referenciada por D7826 - 25a Es referenciada por A0760_A0760M-15R20 Es referenciada por A0762_A0762M-19 Es referenciada por C0509-06R21 Es referenciada por D3575-20 Es referenciada por A1105-17R22 Es referenciada por D3676 - 18(2024) Es referenciada por C898/C898M - 25 Es referenciada por C1782/C1782M - 25 Es referenciada por F1414 - 19(2023) Es referenciada por F1081 - 23 Es referenciada por F3324 - 19(2023) Es referenciada por C140/C140M - 25 Es referenciada por D1667-22 Es referenciada por B0745_B0745M-15R21 Es referenciada por D6576-20 Es referenciada por F1909-98R20 |










