DR/2400
Nitrogen, Ammonia
NitrogenAmm_TNT_High_SAL_Eng_Ody.fm Page 1 of 6
• Small sample sizes (such as 0.1 mL) may not be representative of the entire sample. Mix the sample well before testing or repeat
the test, sampling from different portions of the sample.
• Wipe the outside of sample cells before each insertion into the instrument cell holder. Use a damp towel followed by a dry one to
remove fingerprints or other marks.
• The ammonia salicylate reagent contains sodium nitroferricyanide. Cyanide solutions are regulated as hazardous wastes by the
Federal RCRA. Collect cyanide solutions for disposal as reactive (D001) waste. Be sure cyanide solutions are stored in a caustic
solution with pH >11 to prevent release of hydrogen cyanide gas. See Section 4 on page 55 for further information in proper
disposal of these materials.
• A green color will develop if ammonia is present.
Nitrogen, Ammonia
Method 10031
Salicylate Method
Test ‘N Tube™ Vials
HR (0.4 to 50.0 mg/L NH
3
–N)
Scope and Application: For water, wastewater, and seawater
1. Touch
Hach Programs.
Select program
343 N, Ammonia HR TNT.
Touch
Start.
2. Add 0.1 mL of sample
to one AmVer™ Diluent
Reagent Test ‘N Tube for
High Range Ammonia
Nitrogen (this is the
prepared sample).
3. Add 0.1 mL of
ammonia-free water to
one AmVer™ Diluent
Reagent Test ‘N Tube
for High Range
Ammonia Nitrogen (this
is the blank).
4. Add the contents of
one Ammonia Salicylate
Reagent Powder Pillow
for 5 mL sample to each
vial.
Tips and Techniques
Test ‘N Tube Method 10031
Hach Programs
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