BS EN 938:2000被替代
Chemicals used for treatment of water intended for human consumption. Sodium chlorite
出版：British Standards Institution
專家解讀視頻
? British Standards Institution 2013
NEN EN 938:1999 - Identical
SN EN 938:2000 - Identical
DIN EN 938 (2000-03) - Identical
ONORM EN 938:2000 - Identical
UNI EN 938:2006 - Identical
NBN EN 938 Ed. 1 (2000) - Identical
NF EN 938:1999 - Identical
I.S. EN 938:2000 - Identical
NS EN 938 Ed. 1 (2000) - Identical
UNE EN 938:2000 - Identical
SS EN 938 Ed. 1 (1999) - Identical
