This Fluoride calibration standard solution is designed to be used with Horiba LAQUAtwin F-11 ion fluoride meter.
Fluoride meter needs to be calibrated daily, or every 10 measurements, depending on your frequency of testing.
This set contains 6 x 14 ml bottles and will last for approximately 400 calibrations.
 
How to calibrate LAQUAtwin F-11 fluoride meter (manufacturer recommendations):
 
1) Calibrate with 1:1 mixture of TISAB solution and standard solution
2) Add 1ml TISAB solution to the beaker. 
3) Add 1 ml of 1ppm standard solution to the beaker
4) add this mixture to the sensor area, press CAL 2 times and wait for the smiley face to appear.
 
Calibration is now completed with first calibration point. 
Repeat steps 1-3 with mixing TISAB solution and 10 ppm standard solution for the second calibration point.