Quality of plastics constructions

During the construction of plastics constructions, the quality of the welded joints is crucial. The quality of the adhesion of the welding surface can be ensured by a number of measures:

  • Control of preparations and welding parameters before the start of the welding process
  • Control during the welding process
  • Visual and mechanical examination of the fabricated welds after the welding process

Services

Normec QS has laboratory facilities for preparation and testing of plastic film and welded joints. Our test experts test both field welds (on a sample basis) and test welds in accordance with the applicable DIN guideline and ISO standards, including:

  • NEN-EN-ISO 527 – Determination of tensile properties
  • NEN-EN-ISO 8256 – Determination of tensile-impact strength
  • DIN 53357 – Testing of plastics sheets; adhesion test
  • NEN-EN 12316-2 – Determination of peel resistance of joints – Part 2: Plastic and rubber sheets for roof waterproofing
  • ASTM D 5397 – Stress Crack Resistance of Polyolefin Geomembranes Using Notched Constant Tensile Load Test
  • EN 14576 – Determining the resistance of polymeric geosynthetic barriers to environmental stress cracking
  • Protocols for the application of plastic geomembranes for soil protection and gas and liquid barrier layers – Part I: Materials, UIT 83:2018, NEN
  • Protocols for the application of plastic geomembranes for soil protection and gas and liquid barrier layers – Part II: Construction and acceptance, UIT 84:2018, NEN

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News

Normec QS test laboratory recognised by Synergrid

Since April, Normec QS has been included in Synergrid’s list of recognised test labs for the Belgian market.

Normec QS contributes to certification pilot for European hydrogen requirements

Normec QS contributes to certification pilot for European hydrogen requirements

Mensen op beurs

Visit us during InfraTech 2023

From 17 to 20 January, we will be at the Infratech in Rotterdam Ahoy with our colleagues from Normec Certification and Normec Rei-Lux.

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