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ISO 4437-2-2014 pdf free download

ISO 4437-2-2014 pdf free download.Plastics piping systems for the supply of gaseous fuels – Polyethylene (PE) — Part 2:Pipes
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ISO 4437-1:2014, Plastics piping systems for the supply of gaseous fuels — Polyethylene (PE) — Part 1:
General
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Fitness for purpose of the system
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ISO 6259-3, Thermoplastics pipes — Determination of tensile properties — Part 3: Polyolefin pipes
ISO 9969, Thermoplastics pipes — Determination of ring stiffness
ISO 11922-1:1997, Thermoplastics pipes for the conveyance offluids — Dimensions and tolerances — Part 1:
Metric series
ISO 11357-6, Plastics — Differential scanning calorimetry (DSL’) — Part 6: Determination of oxidation induction time (isothermal OIT) and oxidation induction temperature (dynamic OlT)
ISO 13477, Thermoplastics pipes for the conveyance of fluids — Determination of resistance to rapid crack propagation (RCP) — Small-scale steady-state test (S4 test)
ISO 13478, Thermoplastics pipes for the conveyance offluids — Determination of resistance to rapid crack propagation (RCP) — Full-scale test (FST)
ISO 13479:2009, Polyolefin pipes for the conveyance of fluids — Determination of resistance to crack propagation — Test nethod for slow crack growth on notched pipes
ISO 13968, Plastics piping and ducting systems — Thermoplastics pipes — Determination of ring flexibility ISO 13480, Polyethylene pipes — Resistance to slow crack growth — Cone test method
EN 12106, Plastics piping systems — Polyethylene (PE) pipes — Test method for the resistance to internal pressure after application of squeeze-off
3 Terms and definitions, symbols, and abbreviations
For the purposes of this document, the terms and definitions in Iso 4437-1:2014 and the following apply.
4 Material
4.1 Compound for pipes
The pipes shall be made from virgin material or own reprocessible material from the same PE compound or a mixture of both materials. Reprocessible material from co-extruded pipes or from pipes reprocessed with the peelable layer attached shall not be used. Own reprocessible material from the base pipe of peelable-layer pipes can be used.
The compound(s) from which the pipes are made shall conform to ISO 4437-1:2014.
4.2 Compound for identification stripes
For pipes with identifications stripes, the compound used for these identification stripes shall be made from the same base polymer (PE) as one of the pipe compounds for which fusion compatibility has been proven.
4.3 Recyclable material
Recyclable material including reprocessable material obtained from external sources shall not be used.ISO 4437-2-2014 pdf free download.

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