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ISO 16241:2005PublishedNotch tensile test to measure the resistance to slow crack growth of polyethylene materials for pipe and fitting products (PENT)ISO 16422-1:2024PublishedPipes and joints made of oriented unplasticized poly(vinyl chloride) (PVC-O) for the conveyance of water under pressure — Part 1: GeneralISO 16422-2:2024PublishedPipes and joints made of oriented unplasticized poly(vinyl chloride) (PVC-O) for the conveyance of water under pressure — Part 2: PipesISO 16422-5:2024PublishedPipes and joints made of oriented unplasticized poly(vinyl chloride) (PVC-O) for the conveyance of water under pressure — Part 5: Fitness for purpose of the systemISO/TS 16479:2012PublishedThermoplastics pipes for the conveyance of fluids — Determination of the slow cracking resistance of pipes and fittings using the Notched Ring Test (NRT)ISO 16611:2026PublishedPlastics piping systems for drainage and sewerage without pressure — Non-circular pipes and joints made of glass-reinforced thermosetting plastics (GRP) based on unsaturated polyester resins (UP) — Dimensions, requirements and testsISO 16871:2003PublishedPlastics piping and ducting systems — Plastics pipes and fittings — Method for exposure to direct (natural) weatheringISO/TR 16913:1999PublishedPlastics pipes and fittings — Definitions of types of testISO/TS 16943:2023PublishedThermoplastic pipes for the conveyance of fluids — Inspection of polyethylene electrofusion socket joints using phased array ultrasonic testingISO 17454:2006PublishedPlastics piping systems — Multilayer pipes — Test method for the adhesion of the different layers using a pulling rigISO 17455:2005PublishedPlastics piping systems — Multilayer pipes — Determination of the oxygen permeability of the barrier pipeISO 17456:2006PublishedPlastics piping systems — Multilayer pipes — Determination of long-term strengthISO 17484-1:2014PublishedPlastics piping systems — Multilayer pipe systems for indoor gas installations with a maximum operating pressure up to and including 5 bar (500 kPa) — Part 1: Specifications for systemsISO 17484-2:2009PublishedPlastics piping systems — Multilayer pipe systems for indoor gas installations — Part 2: Code of praticeISO 17778:2015PublishedPlastics piping systems — Fittings, valves and ancillaries — Determination of gaseous flow rate/pressure drop relationshipsISO/TS 17902:2016PublishedWrapped electrofoaming joints for polyethylene (PE) piping systems with smooth outer wall for gravity drains and sewersISO/TR 18124:2006PublishedPlastics piping systems — Multilayer M (metal) pipes — Test method for strength of the weld line in the metal layer and bonding between layers by use of a coneISO 18225:2012PublishedPlastics piping systems — Multilayer piping systems for outdoor gas installations — Specifications for systemsISO/TS 18226:2006PublishedPlastics pipes and fittings — Reinforced thermoplastics pipe systems for the supply of gaseous fuels for pressures up to 4 MPa (40 bar)ISO 18373-2:2008PublishedRigid PVC pipes — Differential scanning calorimetry (DSC) method — Part 2: Measurement of the enthalpy of fusion of crystallitesISO 18373-1:2007PublishedRigid PVC pipes — Differential scanning calorimetry (DSC) method — Part 1: Measurement of the processing temperatureISO 18488:2025PublishedPolyethylene (PE) materials for piping systems — Determination of strain hardening modulus in relation to slow crack growth — Test methodISO 18489:2015PublishedPolyethylene (PE) materials for piping systems — Determination of resistance to slow crack growth under cyclic loading — Cracked Round Bar test methodISO 18553:2025PublishedMethod for the assessment of the degree of pigment or carbon black dispersion in polyolefin pipes, fittings and compoundsISO 18672-1:2009PublishedPlastics piping systems for non-pressure drainage and sewerage — Polyester resin concrete (PRC) — Part 1: Pipes and fittings with flexible joints