Carbolite CAF DIGITAL IMAGING - Manual (Page 5)

CAF Digital Imaging
MF36-3.21
page 5
To minimise the risks associated with CO it is most important that the furnace is installed and
operated in accordance with this instruction manual. If the furnace operator experiences any of
the effects listed above, the furnace must be isolated from the gas and electricity supplies
immediately and expert advice sought. For safety guidelines seek the gas manufacturers advice.
Table 1. Carbon monoxide in air:
Information extracted from Guidance Note EH43 (1996) from the Health and Safety Executive.
Parts per
million
Effect.
50 Recommended Exposure Limit (8 hours time weighted average concentration).
200 Headache after about 7 hours if resting or after 2 hours exertion.
400 Headache with discomfort with possibility of collapse after 2 hours at rest or 45
minutes exertion.
1200 Palpitations after 30 minutes at rest or 10 minutes exertion.
2000 Unconscious after 30 minutes at rest or up to 10 minutes exertion.
For further information refer to:
- Guidance Note EH43 (1998) from the Health and Safety Executive. ISBN 0717615014
- EH40/2005 Workplace Exposure Limits 1997. ISBN 978 0 7176 6446 7
1.3 Hydrogen and Carbon Dioxide Warning.
Applicable for furnaces constructed to use H
2
and CO
2
test gases with CO
2
‘Purge’ gas.
H
2
can form explosive gas mixtures, take precautions to avoid leakage of
H
2
. H
2
and CO
2
can react to form CO. See section 1.2: Carbon Monoxide
Warning.
Carbon dioxide (CO
2
) is a colourless, odourless and tasteless gas that is an
asphyxiant. Rapid unconsciousness occurs at levels above 11%, levels of 20 - 30% are
immediately hazardous to life.
Information extracted from Croner Publications Ltd. Substances Hazardous To Health.
To minimise the risks associated with CO
2
it is most important that the furnace is installed and
operated in accordance with this instruction manual. If the furnace operator experiences any of
the effects listed above, the furnace must be isolated from the gas and electricity supplies
immediately and expert advice sought. For safety guidelines seek the gas
manufacturers advice.
1.4 Safety Warning - Refractory Fibrous Insulation
Insulation made from High Temperature Insulation Wool
Refractory Ceramic Fibre, (better described as Alumino Silicate
Wool) (ASW)
This product contains alumino silicate wool products in its thermal
insulation. These materials may be in the form of blanket or felt, formed
board or shapes, mineral wool slab or loose fill wool.
Whilst there is no evidence of any long term health hazards, we strongly recommend that safety
precautions are taken whenever the materials are handled.
Exposure to fibrous dust may cause respiratory disease.
When handling the material always use an approved respiratory protection equipment
(RPE-i.e. FFP3), eye protection, gloves and long sleeved clothing.
Avoid breaking up waste material. Dispose of waste in sealed containers.