NF EN 25814:1993现行

Specifies an electrochemical method for the determination of dissolved oxygen in water by using an electrochemical cell which is isolated from the sample by a gas permeable membrane. The method is suitable for measurements made in the field and for continuous monitoring of dissolved oxygen as well as measurements made in the laboratory. The method is suitable for waste, natural and saline waters.

NFT 90 106 : 1973

NFT 90 106:1973

ONORM EN 25814:1993 - Identical

DIN EN 25814 (1992-11) - Identical

BS EN 25814:1992 - Identical

NBN EN 25814:1992 - Identical

I.S. EN 25814:1993 - Identical

UNI EN 25814:1994 - Identical

SS EN 25814 Ed. 1 (1993) - Identical

UNE EN 25814:1994 - Identical