Nitrogen, Total
Nitrogen, Total
Page 2 of 8
NitrogenTot_TNT_Other_PSD_Eng_Ody.fm
5. Place the vials in the
reactor. Heat for exactly
30 minutes.
6. Using finger cots,
immediately remove the
hot vials from the reactor.
Cool the vials to room
temperature.
7. Touch
Hach Programs.
Select program
350 N, Total TNT.
Touch
Start.
8. Remove the caps
from the digested vials
and add the contents of
one Total Nitrogen (TN)
Reagent A Powder Pillow
to each vial.
9. Cap the tubes and
shake for 15 seconds.
10. Touch the timer icon.
Touch
OK.
A three-minute reaction
period will begin.
11. After the timer beeps,
remove the caps from the
vials and add one TN
Reagent B Powder Pillow
to each vial.
12. Cap the tubes and
shake for 15 seconds.
Note: The reagent may not
dissolve completely after
shaking. This will not affect
accuracy.
The solution will begin to
turn yellow.
Hach Programs
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