Specifications; Precision And Accuracy - Hanna Instruments HI 96709C Instruction Manual

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Range 0.0 to 20.0 mg/L
Resolution 0.1 mg/L
±0.2 mg/L ±3% of reading @ 25°C
Accuracy
Typical EMC Deviation ±0.1mg/L
Tungsten lamp
Light Source
Light Detector Silicon Photocell with narrow band interference filter @ 525 nm
Method Adaptation of Standard Methods for the Examination of Water and
Wastewater, 18
manganese and reagents causes a violet tint in the sample.
Environment 0 to 50°C (32 to 122°F); max 95% RH non-condensing
Battery Type 1 x 9 volt
After 10' of non-use in measurement mode ;
Auto-Shut off
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")
290 g (10 oz.).
Weight
REQUIRED REAGENTS
Code
HI 93709A-0
HI 93709B-0

PRECISION AND ACCURACY

Precision Precision
Precision is how closely repeated measurements Precision Precision
agree with each other. Precision is usually
expressed as standard deviation (SD).
Accuracy Accuracy is defined as the nearness of a test Accuracy
Accuracy Accuracy
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 10.0
mg/L manganese and a representative lot of
reagent, an operator obtained with a single
instrument a standard deviation of 3.0 mg/L.

SPECIFICATIONS

th edition, Periodate method. The reaction between
Description
Manganese HR Reagent A
Manganese HR Reagent B
5
Quantity/test
1 packet
1 packet
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