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ISO 3108:2017 Steel wire ropes -- Test method -- Determination of measured breaking force

Monday 11th June 2018 Back to list

Steel wire ropes — Test method — Determination of measured breaking force

1 Scope

This document specifies a method of tensile test to destruction for determining the actual breaking force of steel wire ropes as given in ISO 2408.

It is also applicable for other ropes, unless the International Standard concerned specifically excludes its use, or gives another method.

 

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

 

ISO 7500-1, Metallic materials — Calibration and verification of static uniaxial testing machines — Part 1: Tension/compression testing machines — Calibration and verification of the force-measuring system

ISO 17558, Steel wire ropes — Socketing procedures — Molten metal and resin socketing

ISO 17893, Steel wire ropes — Vocabulary, designation and classification

 

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 17558, ISO 17893 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at http://www.iso.org/obp

— IEC Electropedia: available at http://www.electropedia.org/

 

3.1

force at first wire breaking

force value measured when breaking of the first wire occurs during the tensile testing process

3.2

minimum breaking force

Fmin

specified value, expressed in kilonewtons, below which the measured breaking force (Fm) (3.3) shall meet or exceed in a prescribed breaking force test and which is normally obtained by