ISO 9001

ISO 50001


…the continuous monitoring of raw materials, components, production and products

All incoming raw materials, fibres or components, needed for the production of our geosynthetics, are subject to a strict material analysis. Acceptance test certificates, submitted by base material suppliers, are reviewed and qualified in accordance with our product specific protocols.

During production of all geosynthetics, additional quality assurance measures are performed. To ensure personnel effectiveness, the quality assurance staff is assigned to a separate and autonomous division from the production division.

After all quality assurance measures have been performed as defined in the quality assurance plan, an acceptance test certificate will be issued according to ISO 10204 when requested. Material will only be released once it has passed all quality reviews, checks and has all supporting documentation completed.

These quality assurance measures are conducted for all of our products according to the current standards and guidelines in effect at that time. This continuous manufacturing quality control guarantees product performance characteristics and enables complete documentation from the raw material to the final product.

NAUE geosynthetics also undergo third party quality process checks that are typically performed twice a year. Independent experts obtain test specimens from the different NAUE production facilities as well as from the various product inventories. The properties of the geosynthetic pro ducts are tested and documented in detail, including the notation of production processes, the type and extent of the manufacturing quality control and any other relevant observations.

Project specific product properties

In special cases, independent experts are retained to test project specific product properties and to certify the test results. This testing is in addition to and completes the manufacturing quality control carried out on the raw materials as well as the finished products..

Quality management according to ISO 9001

Since December 1994, the geosynthetics development, production, sales and geotechnical engineering divisions of NAUE GmbH & Co. KG have been certified according to ISO 9001. This certification is regularly validated by scheduled audits.

With the aid of this integrated quality management system, the requirements of the customer and/or the projects are understood and fulfilled. While we continually strive to improve the quality level of our existing products and services, a high quality foundation is guaranteed by our ISO 9001 standards.

Compulsory CE-marking

From 1st October 2002, CE-marking for geosynthetics was made compulsory (except for erosion control mats). The CEmarking certifies that a product corresponds to the productspecific European guidelines for specific applications and functions (separation, filtration, reinforcement, sealing, protection and drainage). NAUE has taken all necessary steps to put into effect the compulsory CE-marking.