1. Scope

1.1 This classification system tabulates the properties of vulcanized rubber materials (natural rubber, reclaimed rubber, synthetic rubbers, alone or in combination) that are intended for, but not limited to, use in rubber products for automotive applications. Note 1This classification system may serve many of the needs of other industries in much the same manner as SAE numbered steels. It must be remembered, however, that this system is subject to revision when required by automotive needs. It is recommended that the latest revision always be used.

1.2 This classification system is based on the premise that the properties of all rubber products can be arranged into characteristic material designations. These designations are determined by types, based on resistance to heat aging, and classes, based on resistance to swelling in oil. Basic levels are thus established which, together with values describing additional requirements, permit complete description of the quality of all elastomeric materials.

1.3 In all cases where the provisions of this classification system would conflict with those of the detailed specifications for a particular product, the latter shall take precedence. Note 2When the rubber product is to be used for purposes where the requirements are too specific to be completely prescribed by this classification system, it is necessary for the purchaser to consult the supplier in advance, to establish the appropriate properties, test methods, and specification test limits.

1.4 The values stated in SI units are to be regarded as the standard.

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

D395 Test Methods for Rubber Property--Compression Set

D412 Test Methods for Vulcanized Rubber and Thermoplastic Elastomers--Tension

D429 Test Methods for Rubber Property--Adhesion to Rigid Substrates

D430 Test Methods for Rubber Deterioration--Dynamic Fatigue

D471 Test Method for Rubber Property--Effect of Liquids

D573 Test Method for Rubber--Deterioration in an Air Oven

D575 Test Methods for Rubber Properties in Compression

D624 Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers

D865 Test Method for Rubber--Deterioration by Heating in Air (Test Tube Enclosure)

D925 Test Methods for Rubber Property--Staining of Surfaces (Contact, Migration, and Diffusion)

D945 Test Methods for Rubber Properties in Compression or Shear (Mechanical Oscillograph)

D1053 Test Methods for Rubber Property--Stiffening at Low Temperatures: Flexible Polymers and Coated Fabrics

D1149 Test Methods for Rubber Deterioration--Cracking in an Ozone Controlled Environment

D1171 Test Method for Rubber Deterioration--Surface Ozone Cracking Outdoors or Chamber (Triangular Specimens)

D1329 Test Method for Evaluating Rubber Property--Retraction at Lower Temperatures (TR Test)

D1349 Practice for Rubber--Standard Temperatures for Testing

D1418 Practice for Rubber and Rubber Latices--Nomenclature

D2137 Test Methods for Rubber Property--Brittleness Point of Flexible Polymers and Coated Fabrics

D2240 Test Method for Rubber Property--Durometer Hardness

D3183 Practice for Rubber--Preparation of Pieces for Test Purposes from Products

D5964 Practice for Rubber IRM 901, IRM 902, and IRM 903 Replacement Oils forASTM No. 1, ASTM No. 2, and ASTM No. 3 Oils

Keywords

automotive applications; elastomer; rubber; Accelerated aging/testing--rubber/related materials; Automotive rubber; Classification (standards)--rubber; Line call-out; Natural rubber (NR); Oil resistance--electrical insulating materials; Rubber aging; Vehicles (automotive)

ICS Code

ICS Number Code 83.060 (Rubber); 83.160.01 (Tyres in general)

DOI: 10.1520/D2000-05

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