ISO 4982:2023

Overview

ISO 4982:2023 specifies product specifications and performance criteria for arch-shaped, corrugated-wall chambers made of polyethylene (PE) or polypropylene (PP) used in non-pressure underground systems for the conveyance, detention, retention and storage of non-potable water (e.g., storm water). The standard covers injection‑moulded and thermoformed thermoplastic chambers and integral components (including end caps) intended for buried, single-layer installations in landscape, pedestrian or vehicular areas.

Key topics and requirements

• Material requirements: Defines acceptable PE and PP materials (virgin, mineral‑modified, non‑virgin categories) and required material characteristics for chambers and end caps.
• Product geometry and physical characteristics: Specifies geometrical characteristics (volume, weight, corrugation profile) and physical properties required for arch‑shaped chambers.
• Mechanical performance: Includes minimum mechanical criteria and test methods for stiffness, flattening capacity, stub compression strength and creep performance. (See Annexes B–F for normative test procedures and volume calculation.)
• Marking and documentation: Minimum marking requirements for chambers and end caps and the need for manufacturer documentation covering system assembly and performance.
• System approach: Chambers are intended as modular elements in a complete retention/detention/storage system; manufacturers must provide clearly documented assembly methods and installation guidance (see Annex G).
• Reference tests and standards: The document references established ISO test methods and related normative standards for plastics (e.g., tensile, compressive and impact test standards).

Applications

ISO 4982:2023 applies to a wide range of storm water and subsurface water-management uses:

• Retention and detention basins for storm water attenuation
• Underground storage for non-potable reuse (irrigation, cleaning, toilet flushing)
• Commercial, residential and agricultural drainage systems
• Highway and parking-lot installations beneath vehicular loads
• Modular subsurface conveyance and infiltration systems

Who should use this standard

• Manufacturers of PE/PP arch-shaped corrugated chambers and end caps (product design, material selection, testing and marking)
• Civil and drainage engineers specifying subsurface retention/detention systems
• Contractors and installers needing installation guidance and system assembly information
• Buyers, asset owners and regulators evaluating product conformity and performance claims

Related standards

ISO 4982:2023 is part of the plastics piping standards family and references other ISO test methods for plastics properties and pipe performance. It complements structural and installation guidance (e.g., ASTM F2787 referenced for comparative structural behavior) and should be used alongside local civil engineering and drainage design standards.

Keywords: ISO 4982:2023, arch-shaped corrugated chambers, PE, PP, storm water, retention detention storage, non-potable water, underground conveyance, product specifications, performance criteria.