NEN EN 938:1999被替代
Chemicals Used For Treatment Of Water Intended For Human Consumption - Sodium Chloride
出版：Nederlands Normalisatie Instituut
專家解讀視頻
Deals with sodium chlorite used for water treatment meant for human consumption. Covers features of sodium chlorite and defines the requirements and associated test procedures for sodium chlorite. Provides information on its use in treatment of water.
Draft issued in June 2007. (06/2007)
SS EN 938 Ed. 1 (1999) - Identical
UNE EN 938:2000 - Identical
NS EN 938 Ed. 1 (2000) - Identical
I.S. EN 938:2000 - Identical
NF EN 938:1999 - Identical
NBN EN 938 Ed. 1 (2000) - Identical
UNI EN 938:2006 - Identical
ONORM EN 938:2000 - Identical
DIN EN 938 (2000-03) - Identical
BS EN 938:2000 - Identical
SN EN 938:2000 - Identical
