Ammonia

CAS RN: 7664-41-7

Protective Distance

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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
1005 Ammonia, anhydrous
Anhydrous ammonia
100 ft 0.1 mi 0.1 mi See Table 3 Below
3318 Ammonia solution, with more than 50% Ammonia 100 ft 0.1 mi 0.1 mi 500 ft 0.5 mi 1.2 mi

UN1005 Ammonia, anhydrous: Large Spills

UN1005 Anhydrous ammonia: Large Spills

Container TypeRail tank car
First ISOLATE in all Directions.1000 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)
1.1 mi0.8 mi0.6 mi2.7 mi1.4 mi0.8 mi

Container TypeHighway tank truck or trailer
First ISOLATE in all Directions.500 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 mi0.5 mi0.4 mi

Container TypeAgricultural nurse tank
First ISOLATE in all Directions.200 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 mi0.2 mi0.2 mi0.8 mi0.2 mi0.2 mi

Container TypeMultiple small cylinders
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)
0.2 mi0.1 mi0.1 mi0.5 mi0.2 mi0.1 mi


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