HI-4010-12 2 ppm Fluoride Standard with TISAB II
HI-4010-12 2 ppm Fluoride Standard with TISAB II

HI-7111/P LiCl Calibration Salt for Relative Humidity, 6 x 15g bottles
HI-7858/5 5m extension cable with female BNC connectors
HI-8086L 23g/L Sodium (Na+) ISE Standard Solution, 500ml FDA bottle
The TISAB II also reduces interference from a low pH and from interfering ions, which could make fluoride undetectable by the ISE.
This solution is used to calibrate the fluoride solid state ion selective electrode (ISE).