ISO 10325:2026

Overview

ISO 10325:2026 specifies the requirements and designation system for fibre ropes made from high modulus polyethylene (HMPE) including 8-strand braided ropes, 12-strand braided ropes, and various covered rope constructions such as single braid, double braid, and multi-core designs. Developed by the International Organization for Standardization (ISO), this standard provides a unified framework for manufacturers, users, and industry professionals to ensure consistency, quality, and safety in the production and use of HMPE ropes for general purpose applications. It covers designation methods, material properties, construction guidelines, and marking requirements, but does not encompass all potential strength variations or product performance differences.

Key Topics

• Rope Types and Construction:

  • 8-strand braided rope (type L)
  • 12-strand braided rope (type T)
  • Covered ropes (type K), including single and multiple core types

• Material Specifications:

  • Use of filament HMPE fibres in core construction
  • Variety of cover materials possible (e.g., polyester, polyolefins, polypropylene, HMPE)
  • Importance of overlay finishes and coatings for abrasion resistance and friction adjustment

• Designation and Identification:

  • Standard method for rope designation includes fibre type, number of strands, reference number (rope diameter), cover materials, and stabilization type
  • Optional use of coloured yarns and printed marker tapes for manufacturer identification

• Physical Properties:

  • Indicative values for linear density and minimum breaking strength for various rope sizes and constructions
  • Variations in performance can result from coating application, cover material, and type of core

• General Requirements:

  • Labelling, packaging, and invoicing guidelines
  • Conformity to ISO 9554 for braid pitch and construction details
  • Preservation of safety margins for general-purpose use

Applications

ISO 10325:2026 applies to a wide range of industries and use-cases where high strength, low weight, and excellent abrasion resistance are required. Typical applications for HMPE fibre ropes standardized under this document include:

• Maritime and Offshore: Mooring, towing, and anchoring due to high strength-to-weight ratio and resistance to saltwater and abrasion
• Industrial and Construction: Lifting, rigging, and load-securing operations where durable and lightweight ropes are essential for safety and efficiency
• Recreational and Sports: Climbing, sailing, and rescue operations benefiting from HMPE rope’s reliability under stress
• Utility Services: Use in winches, pulleys, and cable replacement in utilities, telecommunications, and energy sectors

Users are advised to consult manufacturers regarding the appropriate rope design for their specific application, particularly concerning breaking strength, expected loads, and environmental factors.

Related Standards

• ISO 9554: Fibre ropes - General specifications Defines general specifications, construction, and performance requirements for fibre ropes, underpinning many details referenced in ISO 10325:2026.

• ISO 2307: Fibre ropes - Determination of certain physical and mechanical properties Lays out test methods for rope linear density and breaking strength, referenced for property determination in ISO 10325:2026.

• ISO 1968: Fibre ropes and cordage - Vocabulary Establishes common terminology used throughout ISO rope standards.

By aligning with these related standards, ISO 10325:2026 supports international harmonization and facilitates safer, more reliable use of HMPE braided and covered ropes across global industries.

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