17
2.17
Water Quality
The distilled or mineral-free water supply shall be according to the table
below
:
Suggested maximum limits of contaminants in water for steam
sterilization per EN13060
Substance
Feed Water
Condensate
Evaporate
residue
≤ 10 mg/l
≤ 1.0 mg/l
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
≤ 0.5 mg/l
≤ 0.1 mg/l
Conductivity
(at 20°C)
15 µs/cm
≤ 3 µs/cm
pH value
5 to 7.5
5 to 7
Hardness
≤ 0.02 mmol/l
≤ 0.02 mmol/l
Appearance
Colorless, clean, without sediments
Note:
The condensate is produced from steam taken from the empty
sterilizer chamber.
Compliance with the above data should be tested in accordance with
acknowledged analytical methods, by an authorized laboratory.
Note:
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.
