Behind the filters

DELTA is certified ISO 9001 and ISO 14001

ISO Certification

DELTA is certified according til ISO 9001 and ISO 14001 By Bureau Veritas.

Accreditation

DELTA is accredited under the rules of DANAK (Danish Accreditation) and ILAC (International Laboratory Accreditation Cooperation) including its MRA (Mutual Recognition Arrangement).

Further information can be found at:
www.danak.dk and www.ilac.org

Environmental test performed on DELTA's Ultra Hard Coated filter

Documenting our products

Since the 1940s, DELTA has been an accredited laboratory, documenting and validating conditions that are often very difficult to measure or where documentation is critical.

For example, we have in-house facilities for accredited tests of i.e. solarisation effects, environmental stability and spectral response.

We are also able to make extremely precise predictions of phase retardation and other dedicated techniques, helping customers when making unique instruments.

Phase retardation test

DELTA's In-house lighting laboratory

In our in-house lighting lab, we offer accredited spectral testing against EN/ISO 17025. This is a vital help for our customers in the process of obtaining approval of their products.