Hanna HI 97701-11 Free and Total Chlorine Cal Check Standards Set
Hanna Free and Total Chlorine CAL Check Standards for HI97701
The HI97701-11 Free and Total Chlorine CAL Check. Standard value of 1.00 ±0.03 mg/L (ppm) free and total chlorine @ 25°C. The expected reading from the B standard is pH 7.0 ±0.1 @ 25°C. CAL Check” standards with certificate.