ICS IC 022, Руководство по эксплуатации, Страница: 7 / 25

Ver. 1.04.19
© 2012 -2019 by ICS
7
Safety precautions
When blasting in confined spaces sufficient supply of fresh air must be ensured, CO
2
is
odorless and tasteless. It reduces the oxygen content of the breathing air. Failure to do
so can be fatal!
If ignored, there is a risk of DEATH!
The maximum allowable concentration (maximum allowable concentration in 8 hours of
work) is of 5.000 ppm.
A CO
2
concentration of 8-10% (v/v) in the air is deadly!
Note:
1 kg dry-ice pellets sublimates into about 0.5m³ CO
2
when blasting.
Please avoid storing the dry-ice pellets longer than 15 minutes in the dry-
ice hopper to avoid freezing of the IC022. Hopper and dosing system may
freeze, if remaining ice stays in the hopper. Therefore, the hopper has to be
blasted empty or remaining dry-ice has to be removed by hand. Mechanical
interventions for removing the dry-ice pellets are prohibited, as they may
damage the dosing system.
When working with dry-ice, the safety data sheet of the supplier
must be observed. Make sure that only dry-ice pellets are filled into
the dry-ice hopper. Always use safety cloves when handling dry-ice,
because it can cause cold burns. See the safety data sheet at the end
of these operating instructions (page 21).
The dry-ice temperature is -79°C.