INSTITUTE FOR PRESSURE VESSEL & PLANT TECHNOLOGY VIENNA UNIVERSITY OF TECHNOLOGY CEN/TCs: Supporting & materialstandards 74Flanges and their joint DIN (DE) 121Welding DS (DK) 132Aluminium and aluminium alloys AFNOR (F) 133Copper and copper alloys DIN (DE) 138Non-destructive-testing AFNOR (F) 155Plastic piping systems and ducting systems NEN (NL) 185Threaded and non-threaded mechanical fasteners and accessories DIN (DE) 235Gas pressure regulators UNI (I)
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