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Currently GAUAR is the only Spanish waste oil manager with a ENAC accredited (ISO 17025) laboratory for for external and internal use. The ENAC accreditation guarantees the truthfulness and accuracy of the measurements made in GAUAR’s laboratory.


Internationally recognized in over 60 countries, is a signatory of ENAC MRAs between accreditation organizations. Currently the signatories of these agreements include the whole of the EU and EFTA, as well as USA, Canada, Japan, China, Australia, among others.

The ENAC accreditation grants products and services issued by the accredited laboratory GAUAR, with international recognition and validity.

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