National foreword

This British Standard is the UK implementation of ISO 3108:2017.

The UK participation in its preparation was entrusted to Technical Committee MHE/2, Wire ropes.

A list of organizations represented on this committee can be obtained on request to its secretary.

This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2017.

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).

Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.

For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISO's adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see the following URL: www.iso.org/iso/foreword.html.

This document was prepared by Technical Committee ISO/TC 105, Steel wire ropes.

This second edition cancels and replaces the first edition (ISO 3108:1974), which has been technically revised.

The main changes compared to the previous edition are as follows:

the following clauses have been added:
- Terms and definitions (see Clause 3);
- Principle (see Clause 4);
- Sample preparation (see Clause 5);
- Testing machine requirements (see Clause 6);
- Safety requirements (see 7.6);
- Testing result justification (see 7.8);
the test speed of the load applied at approximately 10 Mpa per second after 80 % of F_min achieved has been changed to the speed at the rate of not more than 0,5 % of F_min per second (see 7.6).

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

3 Terms and definitions

4 Principle

5 Sample preparation

5.1 General

5.2 Molten metal or resin socketing method

5.3 Ferrule pressing method

5.4 Direct gripping method

5.5 Sample preparation by method of wrapping

6 Test equipment

7 Procedure

7.1

7.2

7.3

7.4

7.5

7.6

7.7

7.8

8 Test report

Bibliography

BS ISO 3108:2017

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

Current

Published:

30 Nov 2017