Search standard for testing available at SKZ
Durable – reliable – safe
Everyday life without plastic products is impossible. Therefore it's important that they fulfill their tasks as good as perspected. We are happy to perform the necessary quality assurance tests for this purpose.
Tested safety
Safety and outstanding quality are good sales arguments for your products. In our accredited test laboratory, we test and certify a wide range of different plastic products using numerous test methods.
Confidence bonus for certified products
Test seals increase confidence in a product and the associated tests for quality assurance. Our accredited test laboratory will also test and certify your products.
Search standard for testing available at SKZ
Ageing tests for plastics
Durability and quality assurance in various industries
Ageing tests are essential to ensure the durability and stability of plastics in a wide range of applications. In the automotive industry, they ensure the durability of bumpers and interior trim.
In the construction industry, they protect window frames and seals from environmental influences. The electronics industry relies on these tests to maintain the insulating properties of plastic components, while the packaging industry uses tests to ensure the strength of plastic packaging over the entire storage period. In medical technology, ageing tests ensure that plastics in devices and implants meet the highest quality and safety standards.
Our specialized test methods specifically simulate environmental factors such as UV radiation, temperature stress and chemical influences in order to detect potential material weaknesses such as cracking, colour changes or embrittlement at an early stage. Accelerated test methods provide manufacturers with fast and reliable results that give them a decisive advantage in product development
Further details on the test method
- General chemical resistance test, also at temperature, e.g. according to DIN EN ISO 175 or DIN EN 1847
- Autoclave test in water up to 130 °C
- High-pressure autoclave test up to 100 °C and 50 bar oxygen overpressure, e.g. in accordance with DIN EN ISO 13438
- Cold storage down to -60 °C, e.g. in accordance with DIN EN 495-5
- Climate change test, also in accordance with automotive regulations such as PV 1200
- Constant climate storage, e.g. in accordance with RAL GZ 716
- Salt spray test, e.g. in accordance with DIN EN ISO 9227
- Stress crack testing (ESC), e.g. bending strip test according to DIN EN ISO 22088-1 and DIN EN ISO 22088-3
- Stress corrosion cracking test (ESC) using FNCT in accordance with ISO 16770
- Thermal cycling test
- Heat ageing, hot storage or oven ageing up to 300 °C, e.g. in accordance with DIN EN 14575 or DIN EN ISO 13438
- Root strength test according to FLL guideline or DIN EN 13948
- Creep rupture test according to DIN EN ISO 1167 and DIN EN ISO 9080
The choice of specimen geometry depends heavily on the intended application of the plastics, as different products are subject to different requirements and loads. The test method also has an influence on the required geometry. For example, the following are used
- Sheets and films
- Tubes or rods
- Injection molded parts
You can find further interesting details on this and other topics in our whitepaper collection, which you can request free of charge.
- Modern chemical laboratory for the safe handling of hazardous substances
- 25 high-pressure autoclaves (up to 50 bar)
- 10 laboratory autoclaves (up to 4 bar)
- Over 700 pressure stations for pipe testing (up to 200 bar)
- Over 30 stations for temperature change tests on pipes (Ø 6 mm to 315 mm)
- 50 heating ovens
- 5 FNCT basins with a total of 54 measuring stations
- Several cold chambers
- Various climate change chambers
- Salt spray chamber with a sample holding area of up to 1.4 m x 0.5 m
Products tested so far
- Geosynthetics
- Yarns
- Geomembranes
- Pipes
- Nonwovens
- Sheets
- Woven tapes
- Components
These products consist mainly of polyolefins, such as polyethylene (PE) and polypropylene (PP). However, other materials such as polyvinyl alcohol (PVA) and ethylene-propylene-diene rubber (EPDM) have also been subjected to accelerated ageing.
3D extrapolation for estimating the service life of plastic samples based on high-pressure autoclave tests at elevated temperature and increased oxygen pressure (Graphic: SKZ)
97076 Würzburg
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E-Mail: info@skz.de
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SKZ – Testing GmbH
Friedrich-Bergius-Ring 22
97076 Würzburg
Tel. +49 931 4104-0
