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＜TLV-STEL Alarm＞
3
mg/m
濃
度
15-minute moving
average
TLV-STEL alarm
(Occurs when the short-term exposure
limit exceeds the TWA twice in 60
minutes)
3
mg/m
濃
度
15-minute moving
average
TLV-STEL alarm
(When the short-time
exposure limit value STEL
is exceeded)
Time
Time
ｔ
TLV-STEL alarm
(Occurs
exposure limit exceeds the TWA
more than 5 times within 8hours)
ｔ
TLV-C
TLV-STEL
TLV-TWA
8h
when
the
short-time
TLV-C
TLV-STEL
TLV-TWA
8h
31
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