UNE-EN 24935:1993 STEEL AND IRON. DETERMINATION OF SULFUR CONTENT. INFRARED ABSORPTION METHOD AFTER COMBUSTION IN AN INDUCTION FURNACE. (ISO 4935:1989).
1993UNE-EN 24935:1993 STEEL AND IRON. DETERMINATION OF SULFUR CONTENT. INFRARED ABSORPTION METHOD AFTER COMBUSTION IN AN INDUCTION FURNACE. (ISO 4935:1989).