118 119
Silver
• Add exactly 1.0 mL of HI 93737B-0 Buffer reagent to the second beaker
(the sample) and swirl gently to mix.
• Press TIMER and the display will show the countdown prior to adding reagent C or, alternatively, wait
for 2 minutes. Then add exactly 1.0 mL of HI 93737C-0 Indicator reagent to each beaker and swirl.
• Press TIMER or, alternatively, wait for 2 minutes. Then, in both cases, add 1.0 mL of HI 93737D-0
Fixing reagent to each beaker and swirl.
• Then press TIMER or, alternatively, wait for 2 minutes to allow reaction to complete.
• Fill one cuvette up to the mark with 10 mL of the blank.
• Place the cuvette into the holder and close the lid.
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10 mL
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10 mL
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 128.
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.
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