07-09-2015
55
Engineering
Pressure Vessels
925 L.E.
ISO 9809 - 1 / 1999 Gas cylinders – Refillable seamless steel gas cylinders - Design , construction and testing – Part 1 : Quenched and tempered steel cylinders with tensile strength less 1100 MPa .
Total Modification
Obligatory
691/2015
23.020.30