ISO 22074-3:2021

Current Revision
Railway infrastructure - Rail fastening systems - Part 3: Proof load test method for pull-out resistance

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ISO 22074-3:2021

Railway infrastructure - Rail fastening systems - Part 3: Proof load test method for pull-out resistance

PUBLISH DATE 2021
ISO 22074-3:2021

This document specifies a test procedure to confirm that the **force necessary to pull the anchorage of a rail fastening assembly out of the sleeper or other supporting element is greater than a prescribed value** (i.e. it is a proof load test).

This test is for components of the fastening system which are:

  • cast into concrete during the manufacture of sleepers or other supporting elements;
  • glued into the cast or drilled holes in concrete; or
  • screwed or otherwise attached to wood, polymeric composite or steel sleepers or other supporting elements.

This test is **not applicable to embedded rails**.

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