134
8.41. NITRITE, MARINE ULTRA LOW RANGE
SPECIFICATIONS
Range 0 to 200 µg/L (as N0
2
‑
‑N)
Resolution 1 µg/L
Accuracy ±10 µg/L ±4% of reading at 25 °C
Light Source LED with narrow band interference filter @ 466 nm
Method Adaptation of the EPA Diazotization method 354.1.
REQUIRED REAGENTS
Code Description Quantity
HI764‑25 Nitrite Ultra Low Range Reagent 1 packet
REAGENT SETS
HI764‑25 Reagents for 25 tests
For other accessories see page 200.
MEASUREMENT PROCEDURE
• Select the Nitrite, Marine ULR method using the procedure
described in the Method Selection section (see page 18).
• Fill the cuvette with 10 mL of unreacted sample (up to the
mark) and replace the cap.
• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “‑0.0‑” when the meter is zeroed and ready for
measurement.
• Remove the cuvette.
• Add one packet of HI764‑25 Nitrite Ultra Low Range
Reagent. Replace the cap and shake gently for about
15 seconds.
10 mL
NITRITE, MARINE ULTRA LOW RANGE
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