CSN 75 7221-1998
Water quality - Classification of surface water quality

Standard No.

CSN 75 7221-1998

Release Date

1998

Published By

CZ-CSN

Latest

CSN 75 7221-1998

CSN 75 7221-1998 history

• 1998 CSN 75 7221-1998 Water quality - Classification of surface water quality