ISO/PAS 22101-5:2024 PDF

Overview

ISO/PAS 22101-5:2024 - "Polyethylene reinforced with short glass fibres (PE-sGF) piping systems for industrial applications - Part 5: Fitness for purpose of the system" defines how to assess the fitness for purpose of PE-sGF pipes, fittings and their assemblies. It applies to spiral cross-wound PE-sGF piping systems used below ground to convey fluids in industrial and agricultural settings (chemical plants, industrial sewerage, power engineering, water treatment, agricultural production and small hydraulic power plants). The standard covers assemblies with integrated socket and spigot fusion joints, pipes with inside diameters from 200 mm to 1 000 mm, and systems designed for a maximum allowable operating pressure (PFA) up to 25 bar at a reference temperature of 20 °C.

Key topics and requirements

• Scope and applicability
  • PE-sGF material produced by spiral cross winding; SIDR (standard inside dimension ratio) is used instead of SDR.
  • Applies to joints between PE-sGF components and combinations with other materials when used below ground.
• Joint preparation and testing
  • Procedures for preparing test assemblies and closing test pieces for pressure testing.
  • Specific guidance for electrofusion and butt fusion joints (preparation per ISO 11413 and ISO 11414 respectively).
• Performance under normal and extreme conditions
  • Requirements for decohesive resistance, cohesive strength and tensile strength depending on joint type.
  • Distinct test schemes and parameters for normal conditions (ambient ≈23 °C) and extreme conditions (as defined in the clauses).
• Declared compatibility
  • Manufacturers must declare SIDR ranges, MRS (minimum required strength) values and any special fusion procedures required for their fittings and pipes.
• Testing references and parameters
  • Test methods and parameters referenced from ISO 1167 series, ISO 11413/11414, ISO 13953/13954/13955/13956 and related parts of the ISO 22101 series.
• Design coefficient
  • Guidance on design coefficient for PE-sGF compounds is provided to support safe system design.

Applications and users

• Primary users: pipe and fitting manufacturers, fusion equipment suppliers, testing laboratories, design engineers, plant operators and specifiers in chemical, water treatment, power cooling, agriculture, sewerage and small hydropower sectors.
• Use cases: validating joint performance, declaring product compatibility (SIDR/MRS), qualifying fusion procedures, risk assessment for below‑ground fluid conveyance at pressures up to 25 bar.

Related standards

• ISO/PAS 22101 series (Parts 1, 2, 3)
• ISO 1167-1/2/4, ISO 11413:2019, ISO 11414:2009
• ISO 13953 / ISO 13954 / ISO 13955 / ISO 13956

This standard is essential for ensuring the reliability and safety of PE-sGF piping systems, providing manufacturers and engineers with the test frameworks and declarations needed to demonstrate fitness for purpose in industrial below-ground applications.