MANUAL FOR KG20 KG6 KG6 BASIC
DRY ICE BLASTING EQUIPMENT FROM ICETECH | PAGE 5
CO
2
Concentrations
The Dry Ice pellets are CO
2
in solid form. At normal
atmospheric pressure, CO
2
can only exist in solid
form at temperatures of –79°C/110°F or lower. When
it is used as a blasting medium it becomes heated
and changes into gaseous form. As CO
2
has a higher
specic gravity than ordinary atmospheric air, inhaled
air will contain CO
2
– especially if the blasting process
takes place in small or partly closed rooms. In such
conditions there is a risk of the oxygen content of in-
haled air being replaced by CO
2
. Therefore make sure
that the room where such a risk might be present is
well ventilated.
Note that:
• Low CO
2
concentrations (3-5%) result in
headaches and rapid breathing.
• CO
2
concentrations of 7-10% produce headaches
and nausea, and may lead to unconsciousness.
• Higher CO
2
concentrations lead to unconscious-
ness and, in the worst case, suffocation.
As stated above, high CO
2
concentrations can dis-
place oxygen and result in unconsciousness. There-
fore, avoid using the blasting equipment in spaces/
rooms where ventilation is limited.
Important!
In rooms, closed tanks, etc. with limited ventilation,
the presence of a CO
2
detector is recommended.
This can be installed to interrupt blasting before the
CO
2
concentration exceeds a prescribed limit.
“ In many cases cleaning is possible
without dismantling. The frequency of
production stops is therefore often
drastically reduced. ”
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