Unical HP OWER 320RK - Specific R32 Gas Warnings; R32 Gas Charge

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Personal precautions:
Try to stop the leak.
Evacuate personnel to safety areas.
Ventilate appropriately.
Eliminate the ignition sources.
Use personal protective equipment.
Environmental precautions:
Try to stop the leak.
Cleaning methods:
Ventilate the area
HANDLING AND STORAGE
Handling:
technical measures/precautions:
Allow efficient air exchange and/or suction the work environments.
Advice for safe use:
Do not breath in fumes or aerosol.
Storage:
Close carefully and store in a cool, dry and well ventilated area.
Keep in original containers. Incompatible products: explosive, flammable materials, organic peroxide
EXPOSURE CONTROLS/PERSONAL PROTECTION
Control parameters:
OEL – data not available.
DNEL: Derived no effect level (workers)
long-term – systemic effects, inhalation = 7035 mg/m3.
PNEC: Predicted no-effect concentration
water (fresh water) = 0,142 mg/l
aquatic, intermittent releases = 1,42 mg/l
sediment, fresh water = 0,534 mg/kg dry weight
Respiratory protection:
Not required.
Eye protection:
Safety goggles.
Hand protection:
Latex gloves
Hygienic measures:
No smoking
PHYSICAL AND CHIMICAL PROPERTIES
Colour:
Colourless.
Odour:
Ethereal. Hard to perceive at low concentrations.
Boiling point:
-51,7 °C at atm press
Flash point:
648 °C
Relative gas density (air=1)
Relative liquid density (water=1)
1,8
1,1
Solubility in water:
280000 mg/l.
STABILITY AND REACTIVITY
Stability:
Stable under normal conditions.
Materials to avoid:
Decomposition products
hazardous:
Air, oxidizing agents, humidity.
Under normal storage and use conditions, hazardous decomposition products should not be generated..
TOXICOLOGICAL INFORMATION
Acute toxicity:
Local effects:
Long term toxicity:
LD/LC50/inHALATION/4 hours/on rat = 1107000 mg/m3.
No known effect.
No kown effect.
ENVIRONMENTAL INFORMATION
Global warming potential
GWP (R744=1):
675
Ozone Depletion Potential ODP
(R11=1):
0
Disposal consideration:
Refer to the supplier’s gas retrieval program. Avoid direct release into the atmosphere.
4.5 SPECIFIC R32 GAS WARNINGS
The R32 refrigerant gas:
• is odourless;
• is flammable, but only if there are naked flame;
• it may cause an explosion, but only if a given concentration in air is reached.
It is a good practice to follow these guidelines:
• do not smoke near the unit;
• affix a no smoking sign near the unit;
• keep the premises where the unit is installed properly aerated;
• do not pierce or burn the unit;
• do not place the unit near ignition sources, such as naked flames, electric heaters etc.;
• every extraordinary maintenance or repair on the unit must be performed by skilled technicians or qualified personnel;
• a gas leak test must be performed after installation.
4.6 R32 GAS CHARGE
The procedures described below may only be performed by skilled technicians or qualified personnel:
• ensure the R32 is not contaminated by any other types of refrigerant;
• keep the gas cylinder in an upright position when charging;
• apply the appropriate label on the unit after charging;
• do not charge more refrigerant gas than needed
• when charging is completed, perform leak tests before the operating test