TWA : 500ppm
TWA 500 ppm
????
????
????
???? ??? ??? ????? ??? ?? ??????????? ??? ?? ??? ???? ?????
????? 5000 ppm?? ?? ?? ??? ??? ??? ??? ??? ?????? ?????
????? 12500 ppm?? ?? ?? ??? ??? ??? ??? ????(loose-fitting) ??/??? ??? ????? ?? ????? ?????? ?????
????? 25000 ppm?? ?? ?? ??? ??? ??? ??? ?? ??? ??? ?? ?? ??? ?????/????? ??? ?????? ?????
????? 500000 ppm?? ?? ?? ??? ??? ??? ??? ?? ??/?? ??, ????? ?????? ?????
????? 5000000 ppm?? ?? ?? ??? ??? ??? ???????(SCBA) ?? ????? ???????(SCBA) ?????? ?????
?? ??? ????? ?? ???? ??? ??? ? ?? ??? ??? ??? ?? ???? ??? ??? ??? ?????
???? ??? ??? ??? ??????(???) ? ????? ?????
????? ??? ? ??? ??? ???? ??? ??? ????? ?????
????? ??? ? ??? ??? ???? ??? ??? ????? ?????
?? (at 20°C and 1013 hPa)
???? ??
?? ????? ??
????
????
26 ℃
92.8 ℃
????
>1 (?? ??=1)
????
????
50.5 ㎜Hg (25℃)
0.012 g/100? (25℃)
7.03 (??=1)
1.644 (25℃)
3.41 (???)(Log Kow)
????
????
121 (25℃)
203.8
????
LD50 >25000 ㎎/㎏ ??? : Rat (ACGIH??? ??? LD50 800 ㎎/㎏ , ??? LD50 = 23.5 mg/kg bw ??? ????? ??? ??? ???? ???? ??? ???? ??)
LD50 2000 ㎎/㎏ ??? : Rabbit
?? LC50 88.4 ㎎/? 4 hr ??? : Rat
??? ????? ??? ?????/??? ???? ??? ???? ?? (???? CAS No.76-12-0)
??? ??? ?? ???/??? ???? ???? ???? ??(???? CAS No.76-12-0)
????
????? ??? ????? ???? ???? ???? ??
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????
A4 (Fluorides)
????
????
?? ? ??(?)?? ????? ????(???? CAS No.76-12-0)
????
?? ??? ???????? ????? ??
??,???,????,??? ??? ?????????? NOEL= 125 mg/kg bw/day (nominal), ??,???,????,??? ??? ?????????? LOEC=500ppm
????
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?? ? ??? ???? ?????.
1. ???????.
2. ????????? ??? ? ? ???? ???????.
3. ???????????? ???? ??? ? ? ???? ???????.
4. ??????????????(縮合)? ??? ???? ?????.
5. ?? ? ???? ???? ???????, ???????????? ???? ?? ??? ? ? ???? ???????.
????
1078
??????* (??? ??? ??? ?? ??)(REFRIGERANT GASES, N.O.S)
2.2
-
???
F-C
S-V
????????
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????
?????
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? MSDS? ??? ??? ???? ???? ??? ???? ?? ? ? ??? ?? ??? ????? ???? ????.? MSDS? ?? ????? ??? ?? ??? ?? ?????? ?? ?? ??? ?????.? MSDS? ???? ? SDS? ???? ?? ???? ??? ??? ??.? MSDS? ???? ? MSDS ???? ?? ??? ??? ???? ??? ?? ????.