Digital C-FLUOR Submersible Probe
998-2131
Rev. 1.0
Page 17
Appendix B: Recommended Lab Measurement Practices
Recommended Lab Practices for Measurements
The following steps will improve the accuracy and repeatability of your measurements,
especially at low concentration levels:
1. Use a non-fluorescent container for your water samples.
Note: Plastic may
fluoresce and interfere with the sample’s fluorescence.
2. If using a glass container, place the container on a non-reflective black surface.
3. Ensure that the probe is more than 3 inches above the bottom of the container.
4. Ensure that the probe is in the center of the container and has more than 2 inches
clearance
between the cirumference of the probe and the inside surface of the
beaker.
>3 inches
Dark/Black
Non-Reflective
Surface
>2 inches all
round
Calibrated
Sensor
No Air Bubbles
On Optical
Surface
Glass Beaker
