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Chapter 4 Maintenance and Troubleshooting
4.2 ION Electrode Maintenance
F-74BW
93
●
Before use
Before using an electrode, condition the electrode
according to the following table to prepare it for
measurement.
●
Short-term storage
Immerse electrode in the following solutions, when they
are to be stored for up to one day and then reused.
Ion electrode
Conditioning agent
Time
Cl
-
ion electrode
100 mg/L Cl- standard solution
Approx.
10 min
F
-
ion electrode
Deionized water
Approx.
10 min
NO
3
-
ion electrode
1 mol/L potassium nitrate solution
(100 g/L KNO
3
)
2 h to 3 h
K
+
ion electrode
0.1 mol/L potassium chloride
solution (7.5 g/L KCl)
Approx. 12 h
Ca
2+
ion electrode
Tap water
Approx. 3 h
NH
3
ammonia electrode
No conditioning
Ion electrode
Storage solution
Cl
-
ion electrode
Deionized water
F
-
ion electrode
NO
3
-
ion electrode
1 mol/L potassium nitrate solution (100 g/L
KNO
3
)
K
+
ion electrode
0.1 mol/L potassium chloride solution (7.5
g/L KCl)
Ca
2+
ion electrode
Tap water
NH
3
ammonia electrode
0.01 mol/L ammonium chloride solution
Содержание F-74BW
Страница 1: ...Instruction Manual pH ION COND METER F 74BW...
Страница 11: ...CONTENTS IX Chapter 5 Specifications 113 5 1 Specifications 113 5 2 Default Settings 116 5 3 Options 117...
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