Hanna Instruments c 99 Manuel D’Utilisation

61

Fluoride

SPECIFICATIONS

Range

0.00 to 2.00 mg/L

Resolution

0.01 mg/L

Accuracy

±5% of reading

Typical EMC

±0.01 mg/L

Deviation

Light Source

Tungsten lamp with narrow band interference

filter @ 575 nm

Method

Adaptation of the Standard Methods for the
Examination of Water and Wastewater, 18

, SPADNS method. The reaction between

fluoride and the liquid reagent causes a red tint

in the sample.

REQUIRED REAGENT

Code

Description

Quantity

HI  93729-0

SPADNS  Reagent

4 mL

REAGENT SETS

HI 93729-01 Reagents for 100 tests
HI 93729-03 Reagents for 300 tests
For other accessories see page 141.

MEASUREMENT PROCEDURE

• Select the program number corresponding to Fluoride on the

secondary LCD by pressing PROGRAM W and V.

• Add 2 mL of HI 93729 SPADNS

reagent to two cuvets.

• Fill one of the cuvets with distilled water

(up to the mark), replace the cap and
invert several times to mix.

• Fill the other cuvet with sample (up to

the mark), replace the cap and invert
several times to mix.