Ethylene Oxide

CAS RN:75-21-8

Protective Distance

IF THERE IS A FIRE, or IF A FIRE IS INVOLVED, go directly to the ERG guide page and use the evacuation information shown under PUBLIC SAFETY.


Initial Isolation and Protective Action Distances
ID
No.
NAME OF MATERIALSmall Spills
(From a small package or small leak from a large package)
Large Spills
(From a large package or many small packages)
First ISOLATE in all DirectionsThen PROTECT persons Downwind duringFirst ISOLATE in all DirectionsThen PROTECT persons Downwind during
DayNightDayNight
1040 Ethylene oxide
Ethylene oxide with Nitrogen
100 ft 0.1 mi 0.1 mi See Table 3 Below

UN1040 Ethylene oxide: Large Spills

UN1040 Ethylene oxide with Nitrogen: Large Spills

Container TypeRail tank car
First ISOLATE in all Directions.600 ft
Then PROTECT downwind
DAYNIGHT
Low
(< 6 mph)
Moderate
(6 - 12 mph)
High
(> 12 mph)
Low
(< 6 mph)
Moderate
(6 - 12 mph)
High
(> 12 mph)
1.0 mi0.5 mi0.5 mi2.1 mi0.9 mi0.5 mi

Container TypeHighway tank truck or trailer
First ISOLATE in all Directions.300 ft
Then PROTECT downwind
DAYNIGHT
Low
(< 6 mph)
Moderate
(6 - 12 mph)
High
(> 12 mph)
Low
(< 6 mph)
Moderate
(6 - 12 mph)
High
(> 12 mph)
0.6 mi0.3 mi0.3 mi1.3 mi0.4 mi0.3 mi

Container TypeMultiple small cylinders or single ton cylinder
First ISOLATE in all Directions.100 ft
Then PROTECT downwind
DAYNIGHT
Low
(< 6 mph)
Moderate
(6 - 12 mph)
High
(> 12 mph)
Low
(< 6 mph)
Moderate
(6 - 12 mph)
High
(> 12 mph)
0.3 mi0.1 mi0.1 mi0.6 mi0.2 mi0.1 mi




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