This standard establis es the requirements for the documentation of steam boilers with a working pressure greater than 0.07 MPa (0.7 kgf/cm2) and hot water boilers with a temperature greater than 388 K (115 ° c), and its fundamental elements: economizers, surfaces, heating evaporation surfaces, steam superheaters, domes, union tubes and boiler gas ducts.
NC 19-06-1984 history
1984NC 19-06-1984 Safety Technique. Steam and Hot Water Boílers. Manufacture Requirements