16
5 WATER QUALITY
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 acceptable contaminants levels in water,
for sterilizers
Evaporate residue
≤ 15 mg/l
Silica
≤ 2 mg/l
Iron
≤ 0.2mg/l
Cadmium
≤ 0.005 mg/l
Lead
≤ 0.05 mg/l
Rest of heavy metals
≤ 0.1 mg/l
Chloride
≤ 3 mg/l
Phosphate
≤ 0.5 mg/l
Conductivity
≤ 50 µs/cm
pH 6.5 to 8
Appearance Colorless, clean, without sediment
Hardness
≤ 0.1 mmol/l (10ppm)
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.
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