Hanna Instruments CAL Check Standard for Dissolved Oxygen

CalCheck standards for Dissolved Oxygen, 0.0 and 5.0 ppm.
The HI-96732-11 includes one sealed "A" cuvette for zeroing the meter and one "B" cuvette that is used to validate or calibrate. The expected reading from the "B" standard is 5.0 ±0.4 mg/L dissolved oxygen @ 25°C. The calibration set is produced in our state-of-the-art manufacturing facility using reagent grade chemicals in a temperature controlled environment.
Supplied with Certificate of Analysis
Product code
Lot number
Expiry date
Standard value @ 25°C
Reference meter NIST traceable
Provided storage containers
Light tight
Protects from accidental breakage