Dieffebi obtained UNI EN ISO 9001:2000 quality certification in 1997, renewed in 2009 with the UNI ES ISO 9001:2008.
All Dieffebi products are tested by the German TÜV inspection agency and the CATAS labs in Udine, Italy. These tests guarantee the company's commitment to product development and quality. All GS-marked products have obtained DIN 4554 12.1986 certification. Obtaining the GS mark was an important achievement confirming the company's continuous efforts to improve the final quality and safety of products.
Selected products also comply with European work safety regulations.
In December 2010 Dieffebi has obtained the UNI EN ISO 14001:2004 environmental certification to prove the company's concrete commitment to respecting the laws governing the handling of waste products, avoiding the careless use of materials or energy, and also alerting suppliers to a more ecological and sustainable way of managing their activities.
Attainment of ISO 14001 is an important signal of coherence towards a precise choice that - for many years now - has led the company to work according to the principles of sustainable development and the use of avant-garde technologies with low environmental impact.