Aside from our own testing, certain products and product areas are subject to external quality control or must be authorized by recognized organizations for certain application areas.
Corresponding certificates can be provided upon request.
All Polystone® products also satisfy the requirements of RoHS (Restriction of the use of certain hazardous substances in electrical and electronic equipment), which are summarized in European Community Directive 2002/95/EC.
In addition, they satisfy the requirements of the following EC directives: