Overview
EN ISO 10554:2009 / ISO 10554:2009 - Polyamide fibre ropes - Double braid construction specifies requirements for double‑braided polyamide fibre ropes and for higher‑strength (hs) double‑braided ropes, and it gives rules for their designation. The standard defines construction, material requirements, physical properties (linear density and minimum breaking force), marking, manufacture, packaging and limits on strand interchange.
Key topics and technical requirements
- Scope and designation
- Rules for rope designation (example: “Fibre rope ISO 10554 - 20 - PA” or “... - PA (hs)” for higher‑strength).
- Material
- Ropes must be made of polyamide; mixing different polyamide fibre types/grades is not permitted.
- Construction
- Double braid construction: an inner hollow braid (core) made separately, then an outer braid (cover) braided over it.
- Weight distribution: neither core nor cover shall exceed 55% of total rope weight.
- Strand counts
- Minimum outer‑braid strand counts: 16 strands for reference numbers 6–16; 24 strands for reference numbers >16.
- Strand interchange
- Permitted limits to allow for manufacturing irregularities: one interchange allowed in core and one in cover for lengths ≤200 m; provisions for longer lengths and minimum overlap/distances apply.
- Physical properties
- Linear density (ktex) and minimum breaking force values are specified in Table 1 for reference numbers (approximate diameters). Values apply to new, dry ropes and are measured per ISO 2307.
- Marking, manufacture and packaging
- Labelling, packaging and delivery length rules conform to ISO 9554.
- Higher‑strength ropes use a green central marker yarn (for small sizes) or a marker tape showing “(hs)” for identification.
- Testing references
Applications and who uses this standard
EN ISO 10554 is used by:
- Rope manufacturers to design, produce and mark compliant polyamide double‑braid ropes.
- Quality assurance and testing laboratories to verify linear density and breaking forces per ISO 2307.
- Procurement and specification writers in marine, fishing, offshore, industrial lifting, rescue and general rope‑using industries who require standardized product performance and clear designation.
- Regulatory and certification bodies for conformity assessment and labeling checks.
Related standards
- ISO 1968 - Fibre ropes and cordage: vocabulary
- ISO 2307 - Determination of certain physical and mechanical properties (testing)
- ISO 9554 - Fibre ropes: general specifications (manufacture, labelling, packaging)
Keywords: EN ISO 10554:2009, ISO 10554:2009, polyamide fibre ropes, double braid construction, higher‑strength double braided rope, rope designation, breaking force, linear density, strand interchange.