ISO 3660:1976

Overview

ISO 3660:1976 - "Fishing nets - Mounting and joining of netting - Terms and illustrations" is an international standard produced by ISO/TC 38 (Textiles). It lists the common methods used to mount (fix) and join fishing netting panels, gives concise definitions, and provides corresponding diagrams. Each method is identified by a reference number so manufacturers, technicians and specifiers can unambiguously refer to mounting and joining techniques used in nets with different mesh types and edge cuts.

Key Topics

• Scope and purpose
  • Standardizes terms and illustrated methods for mounting netting to ropes or frames and for joining netting panels.
  • Focuses on practical mounting/joining techniques rather than performance requirements.
• Definitions
  • Mounting, rope, frame, mounting yarn, and mounting-related components are defined to ensure consistent terminology.
• Methods of mounting netting
  • Describes mounting for nets with straight edges (AK/AN/AT and AB cuts), square and fly meshes, and tapered edges (K/N/T combined with B cuts).
  • Mounting types include fixed mounting, loose mounting, mixed mounting, and mounting using special yarns (norsels).
• Methods of joining netting
  • Distinguishes two primary joining methods: sewing (remmaillage) - formation of knotted half-meshes or loops - and seaming/lacing (couture) - fastening edges without half-mesh formation.
  • Provides numbered cases covering panels with same or different mesh counts and mesh sizes for both diamond-shaped and square meshes.
• Joining ratio (take-up)
  • Specifies how to express the ratio for joining panels (fraction of meshes or unit length, typically metres) to account for differences in mesh count or stretched length.

Applications

• Useful for fishing-net manufacturers, net assembly workshops, and suppliers to standardize how netting is mounted to ropes or frames and how panels are joined.
• Helps designers and engineers specify mounting/joining methods in procurement documents, drawings and contracts.
• Valuable to quality inspectors, training programs, and maintenance/repair technicians who need consistent terminology and diagram references for net construction and repairs.
• Supports interoperability and replacement/repair of net panels by clarifying mounting yarn, norsel, and joining practices.

Related Standards

• ISO 1531 - Fishing nets: Hanging of netting - Basic terms and definitions (referenced by ISO 3660 for hanging terminology).

Keywords: ISO 3660, fishing nets, mounting of netting, joining netting, mounting yarn, sewing, seaming, norsel, mesh types, joining ratio.