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1.1 This specification covers bearings, which consist of all elastomer or of alternate laminates of elastomer and steel, when the function of the bearings is to transfer loads or accommodate relative movement between a bridge superstructure and its supporting structure, or both.
1.2 The values stated in SI units are to be regarded as the standard.Note 1-The words "elastomer" or "elastomeric" will be used interchangeably with the word "rubber" in this specification.
1.3 The following safety hazards caveat pertains only to the test methods portion, Section B, of this specification: This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A36/A36M Specification for Carbon Structural Steel
D395 Test Methods for Rubber Property--Compression Set
D412 Test Methods for Vulcanized Rubber and Thermoplastic Elastomers--Tension
D518 Test Method for Rubber Deterioration--Surface Cracking
D573 Test Method for Rubber--Deterioration in an Air Oven
D832 Practice for Rubber Conditioning For Low Temperature Testing
D1149 Test Methods for Rubber Deterioration--Cracking in an Ozone Controlled Environment
D1415 Test Method for Rubber Property--International Hardness
D1418 Practice for Rubber and Rubber Latices--Nomenclature
D2000 Classification System for Rubber Products in Automotive Applications
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
E4 Practices for Force Verification of Testing Machines
ICS Number Code 93.040 (Bridge construction)
UNSPSC Code 31171500(Bearings)