WARNING!
If CO levels in a room or space exceed 30ppm it is strongly recommended that
any appliances are switched off and that the space is evacuated and ventilated
before anybody returns to the area.
Where CO spillage (or migration) has been detected the procedures defined for
Room CO Testing as part of CPA1 should be adopted. If you are in any doubt
about what to do seek expert advice.
VISUAL INDICATOR
The LED on the top of the KANE77 lights and changes colour when CO levels
increase or decrease.
OFF:
0-1 ppm
GREEN:
2-9 ppm
AMBER:
10-29 ppm
RED:
30 ppm or higher
These values are based on environmental and health standards as listed in the
table below.
Concentration
of CO in Air
Inhalation Times and Toxic Symptoms
*
10 ppm
The maximum allowable concentration for an 8 hour period without
any known health risks according to the Department of Health and
BS7967.
30 ppm
The maximum allowable concentration for competent persons to
work in when investigating reports of fumes according to BS7967.
200 ppm
Mild headache, fatigue, dizziness and nausea after 2 to 3 hours.
400 ppm
Frontal headache and nausea within 1 to 2 hours. Life threatening
after 3 hours.
800 ppm
Severe headache, dizziness and convulsions within 45 minutes.
Unconsciousness within 2 hours. Death within 2 to 3 hours.
1,600 ppm
Headache, dizziness and nausea within 20 minutes. Death within
1 hour.
3,200 ppm
Headache, dizziness and nausea within 5 to 10 minutes. Death
within 30 minutes.
6,200 ppm
Headache, dizziness and nausea within 1 to 3 minutes. Death
within 10 to 15 minutes.
12,800 ppm
Death within 1 to 3 minutes.
*
The effects can vary depending on size, age, sex and health. Kane is not liable for the
accuracy of this information.
