CERTIFIED QUALITY

SIO  uses a system of quality management according to the principles of ISO 9001. All welders are in possession of welding license according to EN ISO 9606-1: 2013 (EX UNI EN 287). Our WPS are in accordance with EN ISO 15609-1, the WPQR according to the UNI EN ISO 15614-1: 2012. The ways of control of SIO are:

– To carry out dimensional checks on products is used as a reference to the norm EN 22768-1-C .;

– The raw material used for the construction of tanks is pickled sheet DD11-FEP11 according to UNI EN 10111 which is the best in terms of quality and finish;

– Traceability of processes is guaranteed by the following stamp (in the visible area but that does not appear on the outside) on the tanks: No. of Production report – the last two digits of the year of production.