Plastic and rubber – testing of physical-mechanical properties
Kiwa carries out all typical tests on plastic and rubber products used for the distribution and installation of gas, heat and water. Kiwa offers a wide range of physical and mechanical tests in the following sectors: automotive, industry, infrastructure and construction. Tests are also carried out on pipes, fittings, seals, the pipe system (serviceability) and the resins themselves.
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Typical physical (and partly also chemical) tests on polymer materials:
- Mass flow rate of the melt (MFR);
- Vicat softening temperature (VST);
- density;
- degree of cross-linking;
- thermal stability;
- Permeation of gases (e.g. oxygen, hydrogen, methane, CO2) and liquids;
- volatile matter/water content;
- Soot/pigment dispersion.
- FTIR spectroscopy (with more than 200,000 reference spectra) and ATR, diffusion reflection, pyrolysis-FTIR
- Gas chromatography
- Extraction and identification of additives
- Determination of the resistance to hydrolysis of acetals, nylons, polyesters, etc.
- Oxidation induction time (OIT) and other differential scanning calorimetry (DSC)
- Thermal stability
- Thermogravimetric analysis (TGA)
- Viscosity and porosity
- microscopy.
Typical mechanical tests on plastic pipes, fittings and other products:
- Resistance to internal hydrostatic pressure;
- resistance to slow crack growth (SCG, cone test, PENT, FNCT, CRB and strain hardening test);
- resistance to rapid crack propagation (RCP-S4);
- drop, impact and bending test;
- impact tensile test;
- tensile tests (also at elevated temperatures up to 150 °C;
- decohesion and peel tests;
- Constant load tests on pipe segments at elevated temperature to determine the remaining service life of polymers
- Effects of global warming.
Kiwa supports you with an independent assessment of the quality of polymer products.
