Overview

ISO/TS 18226:2006 provides technical guidance for reinforced thermoplastics pipe (RTP) systems used to transmit gaseous fuels at maximum operating pressures up to 4 MPa (40 bar). The Technical Specification covers RTP constructions with thermoplastic liners, continuous reinforcement (fibres, yarns, tapes or wire) and thermoplastic outer covers, and applies for service temperatures roughly between −50 °C and 120 °C, depending on liner and cover materials. The document focuses on RTP and its associated in‑line and end‑fittings, and limits pigging operations to soft pigging to avoid liner damage.

Key Topics and Requirements

Scope and limits: Transmission systems up to 4 MPa; temperature limits depend on materials; soft pigging only.
Materials and construction: Thermoplastic liners with continuous reinforcement (aramid, glass, carbon, metallic wire options noted); reinforcement may be bonded or unbonded to liner/cover.
Pipes and fittings: Requirements for RTP runs, in‑line fittings and end‑fittings; where elbows, tees, valves are conventional they follow existing codes.
Qualification testing: Specifies a qualification testing procedure (including regression and survival tests) to establish design pressure ratings and lower prediction limits (LPL).
Reconfirmation / Re‑qualification: Procedure for reconfirming the design basis for product variants after changes in design, materials or manufacturing.
Process, quality control and marking: Requirements and informative guidance on manufacturing controls, marking, handling, storage and installation.
Normative test procedures and protocols: Normative annexes include test procedures and a qualification protocol to support consistent verification.

Applications and Users

Who uses ISO/TS 18226:2006:

RTP manufacturers developing and qualifying reinforced thermoplastic gas transmission products.
Pipeline designers and system integrators specifying RTP systems for new installations or replacements of corroded metallic lines.
Operators and utilities evaluating suitability of RTP for medium‑pressure gas transmission up to 40 bar.
Testing laboratories and certifiers conducting qualification and reconfirmation tests.
Procurement and regulatory bodies referencing qualification requirements and material limits.

Practical uses:

Selection and qualification of RTP systems for gas transmission projects.
Establishing manufacturing quality controls, marking and handling procedures.
Defining reconfirmation pathways when product variants or processes change.

Related Standards

ISO/TS 18226 references and complements other standards such as:

ISO 9080 (long‑term hydrostatic strength)
ISO 12162 (design coefficients)
ISO 4437 (PE gas pipes)
ISO 14531 series (PE‑X systems)
ASTM D2992 (hydrostatic design basis for GRP pipes)

Keywords: ISO/TS 18226:2006, reinforced thermoplastics pipe, RTP systems, gaseous fuels, 4 MPa, 40 bar, qualification testing, liner durability, soft pigging, RTP fittings.

Overview

Key Topics and Requirements

Scope and limits: Transmission systems up to 4 MPa; temperature limits depend on materials; soft pigging only.
Materials and construction: Thermoplastic liners with continuous reinforcement (aramid, glass, carbon, metallic wire options noted); reinforcement may be bonded or unbonded to liner/cover.
Pipes and fittings: Requirements for RTP runs, in‑line fittings and end‑fittings; where elbows, tees, valves are conventional they follow existing codes.
Qualification testing: Specifies a qualification testing procedure (including regression and survival tests) to establish design pressure ratings and lower prediction limits (LPL).
Reconfirmation / Re‑qualification: Procedure for reconfirming the design basis for product variants after changes in design, materials or manufacturing.
Process, quality control and marking: Requirements and informative guidance on manufacturing controls, marking, handling, storage and installation.
Normative test procedures and protocols: Normative annexes include test procedures and a qualification protocol to support consistent verification.

Applications and Users

Who uses ISO/TS 18226:2006:

RTP manufacturers developing and qualifying reinforced thermoplastic gas transmission products.
Pipeline designers and system integrators specifying RTP systems for new installations or replacements of corroded metallic lines.
Operators and utilities evaluating suitability of RTP for medium‑pressure gas transmission up to 40 bar.
Testing laboratories and certifiers conducting qualification and reconfirmation tests.
Procurement and regulatory bodies referencing qualification requirements and material limits.

Practical uses:

Selection and qualification of RTP systems for gas transmission projects.
Establishing manufacturing quality controls, marking and handling procedures.
Defining reconfirmation pathways when product variants or processes change.

Related Standards

ISO/TS 18226 references and complements other standards such as:

ISO 9080 (long‑term hydrostatic strength)
ISO 12162 (design coefficients)
ISO 4437 (PE gas pipes)
ISO 14531 series (PE‑X systems)
ASTM D2992 (hydrostatic design basis for GRP pipes)

Keywords: ISO/TS 18226:2006, reinforced thermoplastics pipe, RTP systems, gaseous fuels, 4 MPa, 40 bar, qualification testing, liner durability, soft pigging, RTP fittings.

ISO/TS 18226:2006 PDF

Технические детали

Abstract

Overview

Key Topics and Requirements

Applications and Users

Related Standards

Похожие стандарты

Abstract

Overview

Key Topics and Requirements

Applications and Users

Related Standards

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