Thermo Scientific ThermoFlex Manual De Instrucciones página 109

Section 3
Facility Water
Quality and
Standards
(water-cooled
chillers)
3-16 ThermoFlex
Facility Water
Microbiologicals
(algae, bacteria, fungi)
Inorganic Chemicals
Calcium
Chloride
Copper
Iron
Lead
Magnesium
Manganese
Nitrates\Nitrites
Potassium
Silicate
Sodium
Sulfate
Hardness
Total Dissolved Solids
Other Parameters
pH
Resistivity
* MΩ-cm (compensated to 25°C)
Note A corrosion inhibitor is recommended if mixed metals are in the
facility water loop.

Permissible (PPM)
0
<40
<250
<1.3
0.020 ppm if fluid in contact with aluminum
<0.3
<0.015
<12
<0.05
<10 as N
<20
<25
<20
<250
<17
<50
6.5-8.5
0.01*
Desirable (PPM)
0
<0.6
<25
<1.0
<0.1
0
<0.1
<0.03
0
<0.3
<1.0
<0.3
<50
<0.05
<10
7-8
0.05-0.1*
Thermo Scientific