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7
Test Methods
Test 20 Phosphate/4
Range:
Colour change: Colourless - Blue
1 Fill test cuvette with sample to the 10ml mark.
2 Add one Phosphate No 1 tablet,
crush and mix to dissolve.
3 Add one Phosphate No 2 tablet,
crush and mix to dissolve.
4 Stand for 10 minutes.
5 Take photometer reading.
Test 21 Manganese HR
Range:
Colour change: Colourless - Orange
1 Fill test cuvette with sample to the 10ml mark.
2 Add one Manganese HR No 1 tablet,
crush and mix to dissolve.
3 Add one Manganese HR No 2 tablet,
crush and mix to dissolve.
4 Stand for exactly 5 minutes.
5 Take photometer reading.
Test 22 Chlorine/250
Range:
Colour change: Colourless - Brown
1 Fill test cuvette with sample to the 10ml mark.
2 Add one Acidifying GP tablet and one
Chlorine HR tablet, crush and mix to dissolve.
Allow any undissolved particles to settle.
3 Take photometer reading.
Test 23 Hydrogen Peroxide/100
Range:
Colour change: Colourless - Brown
1 Fill test cuvette with sample to the 10ml mark.
2 Add one Acidifying PT tablet and one
Hydrogen Peroxide HR tablet, crush
and mix to dissolve.
3 Take photometer reading.
Note: use this test for checking hydrogen
peroxide levels in pools treated with PHMB.
20
0-4.00mg/l (ppm) PO
4
0-5.0mg/l (ppm) Mn
0-250mg/l (ppm) Cl
2
0-100mg/l (ppm) H
O
2
2
Test 31/32/33 Chlorine-Free/5,
Monochloramine and Dichloramine
Range:
0-5.00mg/l (ppm) Cl
Colour change: Colourless - purple/red (Free
Chlorine), increasing intensity
with Follow-On tests.
1 Rinse test cuvette with sample
leaving a few drops in the tube.
2 Add one DPD 1 tablet, crush tablet and then
fill the test tube with sample to the 10ml mark.
Mix to dissolve tablet fully and ensure no
particles remain.
3 Take photometer reading immediately.
The result may drift on standing.
4 Retain test solution and select 'Follow-On'
for the Test 32 Dichloramine.
5 Add one DPD 2 tablet, crush and mix to dissolve.
6 Take the photometer reading immediately.
The result displayed is the monochloramine
concentration as mg/l (ppm) Cl
7 Retain the test solution and select 'Follow-On'
for the Test 33 Dichloramine.
8 Add one DPD 3 tablet, crush and mix
to dissolve. Stand for two minutes to
allow full colour development.
9 Take the photometer reading. The photometer
displays the dichloramine concentration
as mg/l (ppm) Cl
.
2
Test 34 Calcium Hardness
(Saltwater Pool Calibration)
Range:
0-500mg/l (ppm)
Colour change: Violet - Orange
1 Fill test cuvette with sample to the 10ml mark.
2 Add one Calcicol No 1 tablet,
crush and mix to dissolve.
3 Add one Calcicol No 2 tablet,
crush and mix to dissolve.
4 Stand for two minutes.
5 Take photometer reading.
2
.
2
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