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Hanna Instruments 7021L

Solution OPR#240

Order #: 7021L

Mfg Part #: 7021L

$25.00 USD

$23.75 USD


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Overview :

Product Highlights

  • ORP Solution for Platinum and Gold Electrodes.
  • Reads 240 mV @ 25°C/77°F ORP standard solutions allow you to test the precision of ORP electrodes.
  • If the reading is outside the indicated interval, clean and condition your ORP electrode in HANNA® pretreatment solution.
  • Use HI 7092 for oxidizing or HI 7091 for reducing pretreatment.