Tests on Plastic Pipes

Quality standards in plastic pipe testing

Tests on pipes relate to the defined area of use. National building and construction authorities require pipes to be approved in line with specified criteria which are set out in great detail in specification standards or technical requirements. Requirements may vary considerably from country to country. Due to the wide range of application areas and differing materials, numerous national and international standards are used in the testing of plastic pipes. Both the material properties of the plastic and the performance characteristics of the finished pipe are tested, in many cases by Zwick testing machines with their combination of precision and accuracy. The list below gives an idea of the range of tests applicable to underground PE pipework systems used for non-pressure drainage and irrigation applications in accordance with EN 13476-1. Dimensional measurements are not shown here.

Standard Contents
EN 13476-1 Plastic piping systems for non-pressure underground drainage and sewerage. Structured-wall piping systems of unplasticized poly (vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) - Part 1: General requirements and performance characteristics
Material properties
ISO 1167-1 Resistance to internal pressure, 165 h
ISO 1167-1 Resistance to internal pressure, 1000 h
ISO 1133-1 Melt mass flow rate, MFR @ 190°C, 5 kg
ISO 728 Melt mass flow rate, MFR @ 190°C, 5 kg
ISO 1183 Determination of oxidation induction time, OIT
Physical properties
ISO 2505  Determination of longitudinal reversion heating effects, PE fittings
ISO 12091 Oven test
Mechanical properties of pipes
ISO 9969 Ring stiffness
EN 744 Resistance to external blows by the round-the-clock method, drop-weight method
ISO 13968 Ring flexibility
ISO 9967 Creep ratio
EN 1979 Tensile strength of a seam
EN 1411 Resistance to external blows by the staircase method, drop-weight method
Mechanical properties of fittings
ISO 13967 Stiffness
EN 12061 Test method for impact resistance
EN 12256 Strength or flexibility of fabricated fittings
Behaviour requirements
EN 1277 Tightness of elastomeric sealing ring joints
ISO 13260 Resistance to combined temperature cycling and external loading
EN 1055 Resistance to elevated temperature cycling
EN 1989 Resistance to elevated temperature cycling
EN 1989 Resistance to elevated temperature cycling
EN 1053 Watertightness
Zwick testing machines and instruments are available for various test methods. As well as the methods shown here, Zwick supplies testing equipment for special requirements. All you have to do is ask!
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