UNI 6915-1971 Classification and identification of soldering irons. Welding irons with austenitic stainless steel or nickel alloy electrodes for welding pipes with a thickness greater than or equal to 4 mm
This unification aims to provide a classification of welder workers who must carry out manual arc welding with Cr-Ni austenitic stainless steel electrodes or basic or neutral coated Ni alloys on pipes for the passage of fluids, of thickness greater than or equal to 4 mm, of any type of steel or Ni alloy and to establish the methods for carrying out and evaluating the relevant qualification tests. It equally applies to those parts of tubular constructions in which welding poses the same problems. Passing these tests does not exclude that the welder must be expressly trained both for particular jobs, and in the case in which the joints are surrounded by obstacles that make welding operations particularly difficult, through the possible use of appropriate instrumental means, nor excludes the possible carrying out of adequate tests in these cases.
UNI 6915-1971 history
1971UNI 6915-1971 Classification and identification of soldering irons. Welding irons with austenitic stainless steel or nickel alloy electrodes for welding pipes with a thickness greater than or equal to 4 mm