5
Range 0 to 200 mg/L
Resolution 1 mg/L
Precision ±5 mg/L @ 100 mg/L
Typical EMC Deviation ±1 mg/L
Light Source Light Emitting Diode
Light Detector Silicon Photocell with narrow band interference filter @ 466 nm.
Method Adaptation of the USEPA METHOD 370.1 for to drinking, surface and
saline waters, domestic and industrial wastes and Standard Method
4500-SiO
2
C. The reaction between silica and the reagents causes a
yellow tint in the sample.
Environment 0 to 50°C (32 to 122°F); max 95% RH non-condensing
Battery Type 1 x 9 volt
Auto-Shut off After 10' of non-use in measurement mode;
after 1 hour of non-use in calibration mode;
with last reading reminder.
Dimensions 192 x 102 x 67 mm (7.6 x 4 x 2.6")
Weight 290 g (10 oz.).
REQUIRED REAGENTS
Code Description Quantity/test
HI 96770A-0 Silica HR Reagent A 1 packet
HI 96770B-0 Silica HR Reagent B 1 packet
HI 96770C-0 Silica HR Reagent C 1 packet
PrecisionPrecision
PrecisionPrecision
Precision is how closely repeated measurements
agree with each other. Precision is usually expressed
as standard deviation (SD).
AccuracyAccuracy
AccuracyAccuracy
Accuracy is defined as the nearness of a test result
to the true value.
Although good precision suggests good accuracy,
precise results can be inaccurate. The figure explains
these definitions. In a laboratory using a standard
solution of 100 mg/L silica and a representative lot
of reagent, an operator obtained with a single
instrument a standard deviation of 5 mg/L.
SPECIFICATIONS
PRECISION AND ACCURACY