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ISO 22074-7:2021

Current Revision

Railway infrastructure - Rail fastening systems - Part 7: Test method for clamping force and uplift stiffness

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This document specifies the laboratory test procedure for determining the clamping force exerted by the fastening system on the foot of the rail by measuring the force to separate the rail foot from its immediate support. When required, the procedure is also used to determine the uplift stiffness of the fastening system.

It is applicable to systems with and without baseplates on all types of sleepers, bearers or elements of ballastless track. The test does not determine the security of the fastening components fixed into the sleeper or other fastening system support.

This test procedure applies to a complete fastening assembly. It is not applicable to fastening systems for embedded rail or other fastening systems which do not act on the foot of the rail.


SDO ISO: International Organization for Standardization
Document Number ISO 22074
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 269/SC 1
Publish Date Document Id Type View
Not Available ISO 22074-7:2021 Revision