Thermo Products REDOX/ORP 9678BNWP - Manual (Page 17)

 Redox/ORP Electrode User Guide
Electrode Cleaning Procedures
General Cleaning
1. Soak the electrode in 0.1 M HCl or HNO
3
for half an hour.
The electrode can also be soaked for 15 minutes in a 1:10
dilution of household laundry bleach or a 0.1 to 0.5% liquid
detergent solution mixed with hot water. The solution
should be stirred at a moderate to fast rate.
2. If the electrode is refillable, drain the reference chamber
and refill it with fresh filling solution.
3. Thoroughly rinse the electrode with distilled water.
Cleaning Solutions
Cat. No. 900021– pH cleaning solution A for removing protein
contaminants.
Cat. No. 900022– pH cleaning solution B for removing bacterial
contaminants.
Cat. No. 900023– pH cleaning solution C for general cleaning.
Cat. No. 900024– pH cleaning solution D for removing oil and
grease contaminants.
Cat. No. 900020– pH cleaning solution kit, includes cleaning
solutions A, B, C and D.