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substance
September 16, 2025
1,2 Dichloro-1,1,2,2-tetrafluoroethane
French name in the regulation:
Dichloro-1,2 tétrafluoro-1,1,2,2 éthane
CAS :
76-14-2
Synonyms:
Fréon 114
Exposure Standards in RROHS regulation
Permissible exposure values (PEV)
ppm
mg/m
3
f/cc
Notes
TWAEV
1000
6990
-
-
STEV
-
-
-
-
Ceiling
-
-
-
-
Carcinogenicity
Sensitizer
Simple asphyxiant
Percutaneous
Prohibited use
Prohibited recirculation
Minimum exposure
Explosion hazard
Ototoxic
TWA adjustment for unusual work schedules
1C
: No adjustment
CNESST – Toxicological Index Service
Consult REPTOX file:
1,2 Dichloro-1,1,2,2-tetrafluoroethane
Analysis:
Dichloro-1,2 tétrafluoro-1,1,2,2 éthane
Recommended method by the IRSST:
Method: NIOSH - 1018
Sampling protocol
Sampling device:
Two 400/200 mg and 100/50 mg activated charcoal tubes in series.
Parameters:
Flow rate: 0,01-0,05 L/min
TWA sampling volume: 4 L
STEL sampling volume: -
Remarks:
Contact the IRSST before sampling. Freon 114.
Analytical protocol
Principle:
Gas chromatography with flame ionization detection (GC-FID)
Reference
NIOSH Manual of Analytical Methods, 4th ed., Method 1018 : Dichlorodifluoromethane, 1994.
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