ASTM F2482 F2482M-21 负载指示外螺纹紧固件的标准规范.pdf

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 Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:F2482/F2482M-21 INTERNATIONAL StandardSpecificationfor Load-IndicatingExternallyThreadedFasteners of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. This standard is issued under the fixed designation F2482/F2482M; the number immediately following the designation indicates the year A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. 1.Scope*ization establishedin the Decision on Principles for the 1.1 This specification covers externally threaded bolts,Development of IntermationalStandards,Guides andRe- studs,and cap screws, herein called fasteners, capable of mendations issued by theWorld Trade Organization Technical indicating clamping forces up to yield strength during the Barriers to Trade (TBT) Committee. tightening process or post installation residual tension, or both.2.Referenced Documents Load-indicating fasteners utilize a variety of sensor types to2.1ASTMStandards:2 indicate fastener tension. This specification outlines the various types of load indication technologies available and definestheir E4 Practices for Force Calibration andVerification of Test- performance requirements. ing Machines 1.2 This specification covers fastener diameters /4 to 7 in.E1685Practice forMeasuring the Change inLength of Bolts [M6 to M180] inclusive. Fasteners are manufactured from aUsing the Ultrasonic Pulse-Echo Technique variety of material types and grades. All fastener materials F1470 Practice for Fastener Sampling for Specified Me- shall be defined by a goverming engineering standard or chanical Properties and Per...