8
GB
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3. IMPORTANT INFORMATION
3.5 Part of refrigerant safety table R 32
COOLANT GAS
TYPE R 32
GWP
675
Name
Difluoromethane 3.0
Indications of dangers
H220: Highly flammable gas.
H280: Contains gas under pressure; may explode if heated.
DESCRIPTION OF FIRST AID MEASURES
Inhalation
In a high concentration it can cause suffocation. The symptoms may include loss of mobility and/or
consciousness. The victims may not realise they are suffocating. Wearing the breathing apparatus,
move the victims to a ventilated area, make them lie down and keep them warm. Call a doctor. Provide
artificial respiration only if the victim is not breathing.
Contact with the eyes:
Rinse the eyes immediately with water. Remove any contact lenses if it is easy to do so. Continue to
rinse. Rinse with plenty of water for at least 15 minutes. Get medical attention immediately. If medical
care is not available immediately, rinse for another 15 minutes.
Contact with the skin:
Contact with the evaporating liquid may cause the skin to freeze.
FIRE SAFETY
General fire hazards:
Heat may cause the container to explode.
Extinguishing means
Sprays or splashes water. Dry powder. Foam.
Inappropriate extinguishing means:
Carbon dioxide.
Special hazards arising from the
substance or mixture:
No data available.
Dangerous combustion products:
In the event of a fire, the following products may be produced by thermal decomposition: hydrofluoric acid
; carbon monoxide; carbon oxide
; carbonyl difluoride
RECOMMENDATIONS FOR FIRE-FIGHTERS
Special fire fighting procedures:
In the event of a fire: stop the leak if it is not dangerous. Do not extinguish the flames on the leak
because there is the possibility of an uncontrolled explosive re-ignition. Spray continuously with water
from a safe position until the container has cooled down. Use extinguishers to extinguish the fire.
Isolate the source of the fire or let it burn.
MEASURES IN CASE OF ACCIDENTAL ESCAPE
Personal precautions, protective equipment and
procedures in case of an emergency:
Evacuate the area. Ensure suitable ventilation. Assess the risk of potential explosive atmospheres.
Eliminate all sources of ignition if it is not dangerous. Monitor the concentration of the product that has
been released.
Prevent it from seeping into sewers, basements, excavations or areas where accumulation may be
dangerous. Use a breathing apparatus to enter the affected area unless it has been proven that the
atmosphere is breathable. EN 137 Respiratory protective devices - Open-circuit breathing apparatus with
full mask - Requirements, testing, marking.
HANDLING AND STORAGE:
Only suitably trained and experienced people can handle gas under pressure. Use only specific
equipment, suitable for the product, the pressure and the temperature of use.
INDIVIDUAL EXPOSURE/PROTECTION CHECKS
Control parameters
Limit values for professional exposure
No exposure limit has been defined for any component
DNEL values
Critical component
Type
Value
Remarks
difluoromethane
Workers - inhalation
7035
Repeated dose toxicity
Systemic, long-term
mg/m
3
PNEC values
Critical component
Type
VAlue
Remarks
difluoromethane
Aquatic (fresh water)
0,142 mg/l
-
Aquatic (intermittent releases)
1,42 mg/l
-
Sitting (fresh water)
0,534
mg/kg
-
