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HI7021M is an ORP test solution designed for testing the performance of ORP electrodes. When the ORP electrode is placed in the test solution the reading obtained should be within +/- 20 mV of the 240 mV @ 25°C value. This solution allows users to quickly see if their electrodes are reading correctly.

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Hanna 240 mV @ 25°C ORP Test Solution (230 mL) (HI7021M)

Hanna Instruments

HI 7021M

More Information
PN HI 7021M
Manufacturer Hanna Instruments
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