HI-764-11 CAL CHECK STANDARD FOR MARINE NITRITE ULR CHECKER 0 TO 200 PPB
The Nitrite Marine Ultra Low Range Checker® HC Calibration Check Set – HI-764-11 provides a simple solution to validating the Nitrite Ultra Low Range Checker® HC – HI-764 that has a range of 0 to 200 ppb.
Standard value of 100 +/- 14 ppb nitrite @ 25°C.