Xylem R 503/D - Handbuch (Seite 16)

R 503/P / R 503/D
16 ba15345e02 08/2007
Interferences
The bridge electrolyte ELY/BR/503 contains K
+
and NO
3
-
.
Therefore, it cannot be used for the concentration
determination of potassium, nitrates, perchlorates or
fluoroborates.
Use the following:
! For NO
3
-
determination: ELY/BR/503/N,
! For K
+
determination: ELY/BR/503/K
as the bridge electrolyte (see R ECOMMENDED ACCESSORIES ).
Aging
Please note that every electrode undergoes a natural aging
process. The following factors shorten the lifetime
considerably:
! Incorrect storage
! Special test samples
! High temperatures
! High changes in temperature
The warranty does not cover damage caused by measuring
conditions and mechanical damage.