EN
Ensure that tubetests and sample are between 18°C and 22°C
The 10 minute colour development time is critical, further colour change after that time should be ignored
Add 0.2 mL of sample to a Tubetest.
Swirl to mix.
Use this to "blank" the instrument. Fit the Tubetest adapter to Lumiso, insert tube and press Blank.
Remove tube and add a Tubetest Ammonia (Indophenol) tablet. Gently crush tablet and stir.
Without delay, place tube in cell holder and press Measure.
Allow timer to count down 10:00 minutes.
When timer warning sounds, remove tube and invert once.
Replace tube back in cell holder and press Measure to display the Ammonia concentration.
