71
24.4.5
F
IRE
P
REVENTION
M
EASURES
Specific Hazards:
Increase in pressure.
Dangerous Fumes:
Halogen acids, traces of carbonyl halides.
Fire-Extinguishing means Usable:
All the known fire-extinguishing means can be used.
Specific Methods:
Cool the containers/tanks with water sprays.
Special Protection Equipment:
Use self-contained breathing apparatus in confined spaces.
24.4.6
M
EASURES
A
GAINST
A
CCIDENTAL
S
PILLING OF THE
P
RODUCT
Personal Protection:
Evacuate personnel to safe areas. Provide for adequate ventilation.
Use personal protection equipment.
Protection for the Environment:
It evaporates.
Product Removal Methods:
It evaporates.
24.4.7
H
ANDLING AND
S
TORAGE
Handling and Storage:
Ensure an adequate air change and/or extraction in the workplaces. Only
use well ventilated rooms.
Do not breathe vapours or aerosols. Carefully close the containers
and keep them in a cool, dry and well-ventilated place. Keep in the
original containers.
Incompatible Products:
Explosives, flammable materials, organic peroxides.
24.4.8
C
ONTROL OF
E
XPOSURE
/
P
ERSONAL
P
ROTECTION
Personal Protection:
Ensure adequate ventilation, especially in closed areas.
Control Parameters:
Difluoromethane (R32): Recommended exposure limits: AEL (8h
and 12h TWA) = 1000 ml/m3 .
Pentafluoroethane (R125): Recommended exposure limits: AEL
(8h and 12h TWA) = 1000 ml/m3.
Respiratory Tract Protection:
For rescue and for maintenance works in tanks, use self-contained breathing
apparatus. The vapours are heavier than air and can cause suffocation,
reducing the oxygen available for breathing.
Eye Protection:
Total protection glasses.
Hand Protection:
Rubber gloves.
Hygiene Measures:
Do not smoke.
24.4.9
C
HEMICAL
P
HYSICAL
P
ROPERTIES
Relative density, gas (air=1):
Heavier than air.
Solubility in water (mg/l):
Not known but deemed very low.
Appearance:
Colourless liquefied gas.
Odour:
Similar to ether.
Fire Point:
Does not ignite.
24.4.10 S
TABILITY AND
R
EACTIVITY
Stability and Reactivity:
No decomposition if used according to the special instructions.
Materials to be Avoided:
Alkali metals, alkali-earth metals, granulated metal salts, Al, Zn, Be,
etc. in powder.
Hazardous Products of
Halogen acids, traces of carbonyl halides.
Decomposition:
24.4.11 T
OXICOLOGICAL
I
NFORMATION
Local Effects:
Concentrations substantially above the value TLV (1000 ppm) can
cause narcotic effects. Inhalation of highly concentrated products of
decomposition can cause respiratory insufficiency (pulmonary oe-
dema).
Long Term Toxicity:
No carcinogenic, teratogenic or mutagenic effects have been recorded in
experiments on animals.
Specific Effects:
Rapid evaporation of the fluid can cause freezing. Can cause cardiac
arrhythmia.
Summary of Contents for S-ASX 30
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Page 24: ...24 10 CORRECTIVE FACTORS 10 1 Heating Performances ...
