Tuttnauer 3840 ELVG-D - Water Quality Requirements

Page 11
3.3 Water Quality
The distilled or mineral-free water supply shall be according to the
table below:
Physical Characteristics and Maximum acceptable
contaminants levels in water or steam, for steam generator
and sterilizers
Contaminants in
water supplied to
generator/chamber
Contaminants in
condensate at steam
inlet to sterilizer
Evaporate residue
≤ 10 mg/l
N/A
Silicate (SiO
2
)
≤ 1 mg/l
≤ 0.1 mg/l
Iron
≤ 0.2mg/l
≤ 0.1mg/l
Cadmium
≤ 0.005 mg/l
≤ 0.005 mg/l
Lead
≤ 0.05 mg/l
≤ 0.05 mg/l
Rest of heavy metals
except iron,
cadmium, lead
≤ 0.1 mg/l
≤ 0.1 mg/l
Chloride (Cl)
≤ 2 mg/l
≤ 0.1 mg/l
Phosphate (P
2
O
5
)
≤ 0.5 mg/l
≤ 0.1 mg/l
Conductivity (at
25°C)
3 to 15 µs/cm
≤ 3 µs/cm
pH value (degree of
acidity)
5 to 7.5
5 to 7
Hardness (Σ ions of
alkaline earth)
≤ 0.02 mmol/l
≤ 0.02 mmol/l
Appearance
Colorless, clean, without sediments
Compliance with the above data should be tested in accordance
with acknowledged analytical methods, by an authorized
laboratory.
Attention:
The use of water for autoclaves that do not comply with the
table above may have severe impact on the working life of the
sterilizer and can invalidate the manufacturer’s guarantee.
Use only deionized water, having a maximum conductivity of
15 µs/cm. Conductivity greater than 15 µs/cm may cause
failures.
Tap water supply
The range of hardness value 0.7-2.0 mmol/l (70- 200 mg/l
CaCO
3
)
The use of soft water is strictly forbidden!
Please consult a water specialist!