
ASCO CARBON DIOXIDE LTD
Offi cial sales partner USA
Industriestr. 2, CH-8590 Romanshorn
GRAND NORTHERN PRODUCTS
Tel. +41 71 466 80 80 Fax + 41 71 466 80 66
Tel. + 001 616 583 50 00 Fax + 001 616 583 90 61
/www.ascoco2.com
[email protected]/www.grandnorthern.com
ASCO
CARBON DIOXIDE LTD
XIV
CO
2
SAFETY NOTES
This effect of the carbon dioxide is described as poisoning. The effect of carbon dioxide poiso-
ning is completely independent of the effects of a lack of oxygen.
The content of oxygen in
the atmosphere is thus not an effective indication of danger.
It is defi nitely possible to
have an acceptably low oxygen concentration of 18 % in the ambient air and an increased
carbon dioxide concentration at the same time which signifi es a dangerous situation.
The individual tolerance values can vary strongly depending on the physical condition
of the people and the temperature and air humidity ratios of the atmosphere,
but the
effects mentioned below will generally occur if various carbon dioxide concentrations are in-
haled.
1 - 1.5 %
Light effect on the chemical metabolism following exposure over several hours.
3 %
In this concentration the gas has a weak narcotic effect and it causes deeper
and quicker breathing and poorer hearing ability along with headache, increa-
sed blood pressure and a quicker pulse.
4 - 5 %
Stimulation of the breathing centre and resultant deeper and quicker breathing.
After 30 minutes exposure the appearance of poisoning becomes apparent!
5 - 10 %
Breathing becomes more of an effort with headache and loss of judgement!
10 - 100 %
If the carbon dioxide concentration goes above 10 %, loss of consciousness will
occur in less than 1 minute - and if no immediate measures are taken, further
exposure to such high values can result in death.
The effects of inhaling carbon dioxide in low concentration are physiologically reversible but in
higher concentrations the effect is toxic and damaging!
WARNING
Heart and breathing defects can increase the danger of carbon dioxide poiso-
ning.
ASCO CARBON DIOXIDE LTD
supplies appliances for continuous monitoring of the ambient
air in the danger area. These display the current CO
2
concentration and give an acoustic war-
ning when the set highest concentration values are reached.