Overview
ISO 2307:2019 - Fibre ropes: Determination of certain physical and mechanical properties defines standardized test methods for measuring key physical and mechanical characteristics of fibre ropes. This fifth-edition ISO document (2019) replaces ISO 2307:2010 and is intended for use in laboratory testing, quality control and conformity assessment of ropes used across marine, industrial, lifting, sports and general textile applications.
Key topics and technical requirements
The standard specifies procedures and requirements for determining the following characteristics:
- Linear density – calculated from the mass and length of a conditioned test piece under the reference tension (see Annex A).
- Diameter, lay length and braid pitch – measured at application of the reference tension.
- Elongation – measured by comparing specimen length at the reference tension and at a tension equal to 50% of the minimum specified breaking force (alternative incremental measurements up to 50% may be used).
- Breaking force – measured by increasing tension from the elongation test to the point of rupture; alternative methods for very high breaking forces are described in Annex B.
- Water repellence, lubrication and finish content – optional procedures provided when requested by the customer (detailed test and weighing procedures included).
Other important technical elements:
- Detailed apparatus requirements (e.g., tensile testing machines capable of constant traverse rate and ±1% force accuracy; bollard-type grips and pin/wedge grips are described).
- Sampling, sample preparation, conditioning (referencing ISO 139), and specific procedures for mounting, bedding-in, gauge-length measurement and reporting force–elongation coordinates (Annex C).
- Test reporting requirements and a sample test report (Annex D).
Practical applications and users
ISO 2307:2019 is designed for:
- Rope manufacturers for production control and specification verification.
- Independent testing laboratories performing certification and acceptance testing.
- Procurement and specification engineers who need measurable acceptance criteria for rope purchases.
- Safety and inspection professionals in maritime, offshore, lifting, rescue, climbing and industrial sectors who evaluate rope performance and traceability.
- Textile researchers developing new fibre constructions or finishes.
Using ISO 2307 ensures consistent, reproducible measurements for key rope properties-facilitating product comparison, compliance with contract requirements, risk assessment and safe operation.
Related standards and references
- ISO 139 (standard atmospheres for conditioning and testing)
- ISO 1968 (fibre ropes vocabulary)
- ISO 9554 (fibre ropes - general specifications)
Keywords: ISO 2307:2019, fibre ropes, rope testing, breaking force, elongation, linear density, diameter, lay length, braid pitch, water repellence, rope quality, tensile testing machine.
