ISO 11299-1:2018

Overview

ISO 11299-1:2018 - Plastics piping systems for renovation of underground gas supply networks (Part 1: General) defines the general requirements and test methods for plastics piping systems used to renovate buried gas distribution networks. It applies to pipes and fittings as manufactured and to the installed lining system, and specifically excludes the existing host pipeline, sprayed coatings, and annular filler. Part 1 sets the common framework that is applied together with technique-specific parts (e.g., lining with continuous pipes, close-fit pipes, cured-in-place pipes, adhesive-backed or inserted hoses).

Key topics and requirements

This general part establishes the essential elements that govern material, manufacture and in‑service verification:

• Scope and normative references (e.g., ISO 16010, EN 682, EN 12007 series)
• Terms, definitions and symbols used across the ISO 11299 series
• Material requirements for pipes, fittings and ancillary components
• Characteristic testing in both “as‑manufactured” (M stage) and “as‑installed” (I stage) conditions:
  • Geometric, mechanical and physical characteristics
  • Jointing and marking requirements
  • Sampling and regional requirements for installed linings
• Installation practice and quality control:
  • Preparatory work, storage, handling and equipment
  • Process‑related inspection and testing, lining termination and reconnection
  • Final inspection, testing and required documentation

Practical applications

ISO 11299-1:2018 is intended to support safe, reliable, and verifiable renovation of underground gas supply networks using plastics lining and trenchless rehabilitation methods. Typical uses:

• Rehabilitation of aging gas mains without full excavation (trenchless relining)
• Specifying material and test requirements for plastic pipe linings used in gas distribution
• Defining acceptance criteria and inspection procedures for installed linings
• Supporting procurement, contract specifications and compliance verification for renovation projects

Who should use this standard

• Gas utility engineers and asset owners specifying rehabilitation work
• Pipeline rehabilitation contractors and trenchless specialists
• Manufacturers of plastic pipes, fittings and lining systems
• Testing laboratories and conformity assessment bodies
• Regulators and safety auditors involved in gas distribution infrastructure

Related standards

• Other parts of ISO 11299 that address specific techniques (Part 2: continuous pipes; Part 3: close‑fit pipes; Part 4: cured‑in‑place; Part 6: adhesive‑backed hoses; Part 11: inserted hoses)
• Complementary System Standards in the series: ISO 11296, ISO 11297, ISO 11298
• Referenced standards: ISO 16010, EN 682, EN 12007 series

Using ISO 11299-1:2018 ensures consistent, testable requirements for plastic pipe renovation projects, improving safety, longevity and regulatory compliance in underground gas network rehabilitation.