Calibration Solutions

The fundamental use of calibration and cleaning solutions is to correctly maintain electrode operation to produce accurate and reproducible readings. Often readings are not correct because the sensors have not been properly handled. Using Hanna’s wide range of solutions will help guarantee correct cleaning and calibration of your sensors for maximum performance.

pH Calibration Solution

HI7004/1L – 4.01 pH@25°C 1000ml
Accuracy of ± 0.01 pH 

S$35.00/bottle*

HI7007/1L – 7.01 pH@25°C 1000ml
Accuracy of ± 0.01 pH 

S$35.00/bottle*

HI7010/1L – 10.01 pH@25°C 1000ml
Accuracy of ± 0.01 pH 

S$35.00/bottle*

ORP Verification Solution

HI7021L – 240mV ORP Test Solution – 500ml
Reads 240 mV @ 25°C ORP standard solutions allow you to test the precision of ORP electrodes

S$50.00/bottle*

HI7022L – 470mV ORP Test Solution – 500ml
Reads 470 mV @ 25°C ORP standard solutions allow you to test the precision of ORP electrodes. Good for dissolved ozone testing

S$50.00/bottle*

Conductivity Calibration Solution

HI7031L/C – EC 1413 µS/cm@25°C – 500ml
General purpose testing, such as tap water

TBA*

HI7030L – EC 12880 µS/cm@25°C – 500ml
Can be used for high salinity samples, or seawater

TBA*

*Price does not include delivery charges. Free delivery for orders above S$250.

Cleaning Solution available upon request.

Calibration or verification solutions for other values are available upon request. Please send us your request.