Instructions |
To
Test For General Hardness
1. Fill test tube to the 5ml
line with water to be tested.
2. Add 1 drop of GH reagent
into test tube. Insert cap hold
with finger and shake well
to mix. A pink colour should result. Attention!
always use the cap, Avoid skin contact. If the colour of
the mixture changed to blue after adding
the drop, the Hardness measure is below 20mg/l.
3. Continue to add one drop at a time and shake after each
addition. Count drops and stop adding drops when colour
changes from pink to blue.
4. Multiply the total number of drops by 20
to determine the General Hardness in mg/l (ppm) as Calcium
Carbonate.
To
Test For Carbonate Hardness
1. Fill test tube
to the 5ml line with water to be tested.
2. Add 1 drop of KH reagent
into test tube. Insert cap, hold
with finger and shake well
to mix. A blue colour should result. Attention!
always use the cap, Avoid skin contact. If the colour of
the mixture changed to yellow after adding
the drop, the Carbonate Hardness measure is below 10mg/l.
3. Continue to add one drop at a time and shake after each
addition. Count drops and stop adding drops when colour
changes from blue to yellow/ lime.
4. Multiply the total number of drops by 10
to determine the General Hardness in mg/l (ppm) as Calcium
Carbonate. |
These
instruction are as a guide only, for full Instructions and Safety
advice see the booklet included with test kit. |
|
$22.00