EN
Nessler's reagent is sensitive to air, replace cap promptly
Add 5 mL of sample to a Tubetest.
Invert tube a few times to mix.
Use this to "blank" the instrument. Fit the Tubetest adapter to Lumiso, insert tube and press Blank.
Add 12 drops of Nessler's reagent.
Invert tube a few times to mix.
Without delay, place tube in cell holder and press Measure.
Allow timer to count down 1 minute. The concentration of Ammonia will then be displayed.
