Tuttnauer 3170 - 3.10 Water Quality

Page 17 of 58 Pages
3.10 Water Quality
3.10.1 Water for Steam Generation
The distilled or mineral – free water supplied to the autoclave
should have the physical characteristics and maximum
acceptable level of contaminants indicated in the table below:
Physical Characteristics and Maximum acceptable
contaminants levels in steam for sterlizers
(According to EN 13060:2004).
Element
Condensate
–
allowable
content
Silicium oxide. SiO
2
≤0.1 mg/kg
Iron ≤0.1 mg/kg
Cadmium ≤0.005 mg/kg
Lead ≤ 0.05 mg/kg
Rest of metals except iron,
cadmium, lead
≤0.1 mg/kg
Chloride (Cl) ≤0.1 mg/kg
Phosphate (P
2
O
5
) ≤0.1 mg/kg
Conductivity (at 20°C) ≤3 μs/cm
pH value (degree of acidity) 5 to 7
Appearance
Colourless clean without
sediment
Hardness (Σ Ions of alkaline
earth)
≤0.02 mmol/l
Compliance with the above data should be tested in accordance
with acknowledged analytical methods, by an authorized
laboratory.
Attention:
We recommend testing the water quality once a
month. The use of water for autoclaves that does not comply
with the table above may have severe impact on the working
life of the sterilizer and can invalidate the manufacturer’s
guarantee.
3.10.2 Drain Cooling
The feed water supplied to the drain cooling must meet the
following requirements:
 Hardness: 0.7 - 0.2 mmol/l.
 Water temperature shall not exceed 15°C.