YSI MultiLab 4210 ORP Electrodes - Manual (Page 10)

Wear parts and accessories 4210
10 ba76138e01 02/2013
Wear parts and accessories
Oxidizing pretreat-
ment Immerse the platinum electrode for two to three
days in a sulfuric acid clorina solution (0,5 g clorina
powder, 100 ml H
2
O dist., 2-3 ml 20% sulfuric acid).
Clorina powder for producing the solution is includ-
ed in the SORT/RH reagent set.
Note: The diaphragm must not be immersed in the
clorina solution!
Reducing pretreat-
ment When the electrode is ready for the test immerse it
in the Zobell ORP buffer solution and wait for a sta-
ble measured value.
Description Model Order no.
Reference electrolyte solution 3 mol/l KCl,
Ag
+
free (250 ml)
KCl-250 109 705Y
Reagent set for regenerating ORP platinum
electrodes, consisting of 10 g activation pow-
der and 30 g clorina powder SORT/RH 109 730Y
Zobell ORP buffer solution (125 ml) 3682 061320