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Guidelines for the Purchasing and Testing of SPM Hawsers, 2nd Edition, 2025
The second edition includes rope design particulars and documents including the Offer of Hawser Form and the OCIMF Compliance Certificate ensuring rope manufacturers, purchasers and inspectors have the latest guidance and information.
DETAILED OVERVIEW
INTRODUCTION
The working group compiled a questionnaire that was sent to manufacturers through The Cordage Institute, an international association of rope, twine, and related manufacturers, their suppliers, and affiliated industries. The replies received were used to update the relevant parts of this 2nd edition.
New figures have been added to help visualise and clarify what is meant in the corresponding text and all formulas, while still valid, were recalculated.
Section 7 - Manufacturer?s Record Book is a new addition that describes the minimum level of information and guidance that the purchaser should expect to receive from the manufacturer about storage, operations, inspection and maintenance of a hawser throughout its lifecycle. Instructions about post-lifecycle testing should be included.
The checklists found in the previous edition have been restyled and have also been made available in electronic format.
It is important to note that the word 'shall' used in the previous edition of the guidelines has been replaced by 'should'. The purchaser, and in particular their purchasing department, should be made aware that when the procedures laid down and recommended in this edition are to be applied, this should be clearly communicated to the manufacturer.
CONTENTS LISTING
Contents
Purpose and scope
Glossary
Abbreviations
Bibliography
List of figures
Section one
General practices and procedures
Section two
Procedure for specifying hawsers
Section three
Procedure for offering hawsers
Section four
Production of hawsers
Section five
Inspection of finished hawsers
Section six
Production of prototype ropes
Section seven
Manufacturer's Record Book
Appendices
Appendix A: Forms
Form A OCIMF Guidelines for the Purchasing and Testing of SPM Hawsers Compliance Certificate
Form B Purchase Specification Form
Form C Offer of Hawser Form
Form E Inspection Checklist and Report
Form F Prototype Test Checklist and Report
Appendix B: Basic yarn testing
B1 Yarn strength and elongation
B2 Yarn shrinkage and creep
B3 Yarn-on-yarn abrasion test
B4 Fibre material identification tests
Appendix C: Example calculations
C1 Introduction
