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126
8.38. NICKEL LOW RANGE
SPECIFICATIONS
Range
0.000 to 1.000 mg/L (as Ni)
Resolution
0.001 mg/L
Accuracy
±0.010 mg/L ±7% of reading at 25 °C
Light Source
LED with narrow band interference filter @ 575 nm
Method
Adaptation of the PAN method.
REQUIRED REAGENTS
Code
Description Quantity
HI93740A‑0
Nickel Low Range Reagent A
2 packets
HI93740B‑0
Nickel Low Range Reagent B
2 mL
HI93740C‑0
Nickel Low Range Reagent C
2 packets
HI93703‑51
Dispersing Agent (optional reagent)
4‑6 drops
REAGENT SETS
HI93740‑01
Reagents for 50 tests
HI93740‑03
Reagents for 150 tests
For other accessories see page 200.
MEASUREMENT PROCEDURE
• Select the
Nickel LR
method
using the procedure described in the
Method Selection section (see page 18).
Note: For best results samples should be between 20 and 24
°
C.
• Fill one graduated beaker with 25 mL of deionized water (blank)
and another one with 25 mL of sample.
• Add one packet of
HI93740A‑0
Nickel Low Range Reagent A to each
beaker. Cap and swirl gently until the reagent is dissolved.
Note: If sample contains iron (Fe
3+
), it is important that all
powder is dissolved before continuing.
• Add 1 mL of
HI93740B‑0
Nickel Low Range Reagent B to each
beaker, and swirl to mix.
NICKEL LOW RANGE