Accreditations and certifications

ISO 9001:2008

STL is an ISO 9001:2008 certified company in the following fields:

Engineering services in the field of energy production plants and in process plants
Mechanical testing for the characterization of materials
Corrosion testing

STL is an UNI CEI EN ISO/IEC 17025:2005 certified laboratory with the identification number LAB N. 1604

STL is qualified by TÜV NORD for the engineering activities