Lovibond TB300 IR, Инструкция по эксплуатации

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TurbiDirect_6 02/2019
2.3.7.3 Preparation of dilutions from the 4000 NTU Formazin
Stock Solution
To prepare the dilutions from a 4000 NTU Formazin Stock Solution and dilution water:
Standard Step 1 Step 2 Step 3
20 NTU
Add 100 ml of
dilution water to
a clean 200 ml
volumetric flask.
Pipette 1.00 ml well
mixed 4000 NTU
Formazin Stock
Solution to this
200 ml flask.
Fill to the mark
with dilution water.
Close and mix the
flask.
200 NTU Add 50 ml of
dilution water to
a clean 100 ml
volumetric flask.
Pipette 5.00 ml well
mixed 4000 NTU
Formazin Stock
Solution to this
100 ml flask.
Fill to the mark
with dilution water.
Close and mix the
flask.
800 NTU Add 50 ml of
dilution water to
a clean 100 ml
volumetric flask.
Pipette 20.00 ml
well mixed 4000
NTU Formazin Stock
Solution to this
100 ml flask.
Fill to the mark
with dilution water.
Close and mix the
flask.
Use class A volume pipette and glass flasks.
Use dilution water for the < 0.1 NTU standard.