They report that a third party, normally established by law, verifies on a documental basis the specific and detailed design characteristics of a particular product and attributes it to a proper structural category by specifying the technical rules and the executive procedures to be applied.
In the specific case of the PREM Beams, the reference is made up of the "Guidelines for the use of truss steel beams incorporated in the pouring concrete casting".
According to the different competences and roles, the documents refer to Sterchele SpA (ST) to S.D. Srl (SD) and Stedil srl (SE) which produces steel components on behalf of the aforementioned ST and SD. The languages used in the certificates are indicated with: IT = Italian; IN = English; TE = German.
The production sites are indicated with: MV = Marano Vicentino; IV = Isola Vicentina; CA = Cavazzale; TU = all.
S.D. srl: Classification, Central Technical Service of Superior Council of Public Works (CSLP), of the PREM SD beams models a0, a1 and a2 in the composite steel-concrete beams structural category of for all the factories (No. 9879 dated 13/12/2013)
S.D. srl: Classification, Central Technical Service of Superior Council of Public Works (CSLP), of the PREM SD beams models b0 and b2 in the reinforced concrete beams structural category for all the factories (N° 5458 dated 08/08/2014)