




		Dissolved Oxygen : Test Kits

Contents of Dissolved Oxygen Test Kits

The dissolved oxygen (DO) test requires the addition of four chemicals and so becomes fairly complicated. Careful attention to a set of detailed instructions is required. The dissolved oxygen test kit uses:

Reagent Chemical Content Formula Percentage Content

Dissolved Oxygen 1
Reagent
manganese (II) sulfate
Mg(S0₄)
100%

Dissolved Oxygen 2
Reagent
lithium hydroxide
potassium iodide
sodium azide
LiOH
KOH
NaN₃
55-65%
30-40%
1-5%

Dissolved Oxygen 3
Powder Pillows
sulfamic acid
H₂SO₃NH₂
99%

Titrant Solution
distilled water
propylene glycol
sodium sulfate
sodium thiosulfate
H₂O
C₃H₈O₂
Na₂S0₄
Na₂S₂O₃
70-80%
20-30%
1-5%
1%

WARNING: The chemicals in this kit may be hazardous to the health and safety of the user if inappropriately handled.

Read all labels
Wear gloves and goggles
Collect the waste solution in a plastic Nalgene waste bottle. This solution should be neutralized with sodium thiosulfate before flushing into the sanitary sewer system.