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.

Test methods

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.

Product certification

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.

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Our Mission

Electrical tests

Plastic parts are playing an increasingly important role in electrotechnical applications by combining a variety of functions. Functionalized plastic components not only act as insulators, but also fulfil tasks as heat-conducting elements and thus make a significant contribution to the high performance and efficiency of electronic systems. In order to ensure the intended function and safety of these applications, it is essential to carry out various electrical tests in advance. For this reason, special electrical and dielectric tests are used for plastics and insulating materials, which can ensure that the materials used have specific electrical properties with high measurement accuracy and good reproducibility. These tests not only guarantee the performance, but also the safety and reliability of plastics in a wide range of applications.

Dr. Irene Reuther
Group Manager | Special services and expert reports
Udo Dengel
Project Manager | Customer & Project Management | Construction Products

Further details on the process

Extract from our test methods

Accredited test methods

  • Surface resistance 
    e.g. DIN IEC 60093; DIN EN 62631-3-2; DIN EN 1081
  • Volume resistivity or volume resistance
    e.g. DIN IEC 60093; DIN EN 62631-3-1; DIN EN 1081
  • Leakage current resistance with determination of CTI and PTI
    e.g. DIN EN 60112

Non-accredited test methods

  • Dielectric constant
    e.g. DIN 53483-1
  • Dielectric dissipation factor
    e.g. DIN 53483-1
What component sizes and geometries can we test?
  • Flat samples with a dimension of at least 100 x 100 mm
  • Samples in accordance with the requirements of DIN EN 1081
  • Samples in accordance with the requirements of DIN EN 60112
Technical test equipment
  • Kink teraohmmeter 10 V, 100 V, 500 V
  • Leakage current tester for determining CTI and PTI up to 600 V
What are typical areas of application for electrical testing?

Insulation capability:
Plastics are often used as insulating materials in electrical and electronic applications. It is important to ensure that they have sufficient insulating properties to prevent electrical currents and short circuits.

Many electrical devices and systems contain plastics that serve as housings or insulators. The dielectric properties of these materials must be tested to ensure that there is no risk of electrical breakdown or other safety hazards.

Aging resistance:
Plastics can age over time due to various environmental influences and stresses. Electrical testing can help to assess the long-term stability and ageing resistance of plastics.

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SKZ · German Plastics Center
Friedrich-Bergius-Ring 22
97076 Würzburg

Telefon: +49 931 4104-0

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Frankfurter Str. 19 c
97082 Würzburg

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Training Center
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European Center for Dispersion Technologies (EZD)
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95100 Selb

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Via Buonarotti 175
20900 Monza, Italy

Telefon: +39 039 281561

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Plastics Bavaria Equipment & Systems srl
Str. Iancu Jianu, nr. 26
500178 Braşov, Romania

Telefon: +40 268 412 559
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SKZ Standort Würzburg, SKZ Weiterbildung

SKZ – Testing GmbH
Friedrich-Bergius-Ring 22
97076 Würzburg

Tel. +49 931 4104-0

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