30.97 End of interruption of work - split/merged Aug 18, 1993
CEN
CEN/TC 165 Waste water engineering
European Norm
Part 9 will standardize systems and equipment for the treatment of sludge produced as a result of treating domestic and commercial waste water in large waste water treatment plants.
ABANDON
cen:proj:7257
30.97
End of interruption of work - split/merged
Aug 18, 1993