Phone: +49 3672 379 - 0

Ostthüringische Materialprüfgesellschaft für Textil und Kunststoffe mbH

Hardness and scratch tests

The hardness of plastics is determined in different ways depending on the type of material.
OMPG offers both the classical ball indentation hardness test and the Shore hardness measurement for elastomers. Many surface tests are also connected with hardness tests.

Various scratch tests are demanded in particular for automotive applications. The spectrum ranges from the testers acc. to Erichsen and Oesterle to wear and abrasion tests. Partially entire crosshatch patterns are applied mechanically with the Erichsen test machine model 430P and then the colour change is determined.

Plastic Testing

Dipl.-Ing. Ute Schwarz
Phone: + 49 3672 379 - 420
Fax: + 49 3672 379 - 379


OMPG is an accredited testing laboratory according to DIN EN ISO / IEC 17025.

Accreditation certificate (PDF)
Annex to accreditation certificate (PDF)

OMPG certificates are currently updated by DAkkS. 
Our laboratory passed the current audit in 2020. 
Please use our German accreditation certificates meanwhile.
English certificates are on their way. 


Ostthüringische Materialprüfgesellschaft für Textil- und Kunststoffe mbH

Breitscheidstraße 97
07407 Rudolstadt

Phone: + 49 3672 379 - 0
Fax: + 49 3672 379 - 379