Withdrawn Norm
The Norm standard ÖNORM EN 13523-21:2009 03 01 was withdrawn on 15.05.2010 and is no longer available. The currently valid standard can be viewed here: ÖNORM EN 13523-21
The Norm standard ÖNORM EN 13523-21:2009 03 01 was withdrawn on 15.05.2010 and is no longer available. The currently valid standard can be viewed here: ÖNORM EN 13523-21