175
8.56. SILICA HIGH RANGE
SPECIFICATIONS
Range 0 to 200 mg/L (as SiO
2
)
Resolution 1 mg/L
Accuracy ±1 mg/L ±5% of reading at 25 °C
Light Source LED with narrow band interference filter @ 466 nm
Method Adaptation of the USEPA Method 370.1 for drinking, surface and saline
waters, domestic and industrial wastes and Standard Method 4500‑SiO
2
.
REQUIRED REAGENTS
Code Description Quantity
HI96770A‑0 Silica High Range Reagent A 1 packet
HI96770B‑0 Silica High Range Reagent B 1 packet
HI96770C‑0 Silica High Range Reagent C 1 packet
REAGENT SETS
HI96770‑01 Reagents for 100 tests
HI96770‑03 Reagents for 300 tests
For other accessories see page 200.
MEASUREMENT PROCEDURE
• Select the Silica HR 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.
10 mL
SILICA HIGH RANGE
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