Hanna Instruments HI 83212 User Manual

Page 23

Silver

SILVER

SPECIFICATIONS

Range

0.000 to 1.000 mg/L

Resolution

0.001 mg/L

Accuracy

±0.005 mg/L ±10% of reading

Typical EMC

± 0.001 mg/L

Deviation
Light Source

Tungsten lamp with narrow band interference filter @ 575 nm.

Method

Adaptation of the PAN method. The reaction between silver and reagents causes an
orange tint in the sample.

REQUIRED REAGENTS

Code

Description

Quantity

HI 93737A-0

Buffer Reagent A

1 mL

HI 93737B-0

Buffer Reagent B

1 mL

HI 93737C-0

Indicator Reagent C

2 mL

HI 93737D-0

Fixing Reagent D

2 mL

HI 93703-51

Dispersing Agent

4-6 drops

(only when necessary, see note)

REAGENT SETS

HI 93737-01

Reagents for 50 tests

HI 93737-03

Reagents for 150 tests

For other accessories see page 50.

MEASUREMENT PROCEDURE

• Select the

Silver method using the procedure described in

the

Method Selection section (see page 12).

Note: for best results perform your tests between 20-24°C.

• Fill two graduated beakers with 25 mL of sample.

• Add 1.0 mL of HI 93737A-0 Buffer reagent to one beaker

(the blank) and swirl gently to mix.

# 1

# 2

# 1

INTERFERENCES

Interference may be caused by:
Phosphate above 60 mg/L
Phosphate above 75 mg/L
Sulfide and high concentration of iron
Eliminate color and turbidity interferences by zeroing the meter with the original water sample.

Silica