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 MATERIAL | Small 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 Directions | Then PROTECT persons Downwind during | First ISOLATE in all Directions | Then PROTECT persons Downwind during |
|---|
| Day | Night | Day | Night |
|---|
| 1017 |
Chlorine |
200 ft |
0.2 mi |
0.7 mi |
See Table 3 Below |
UN1017 Chlorine: Large Spills
| Container Type | Rail tank car |
|---|
| First ISOLATE in all Directions. | 3000 ft |
|---|
| Then PROTECT downwind |
|---|
| DAY | NIGHT |
|---|
Low
(< 6 mph) |
Moderate
(6 - 12 mph) |
High
(> 12 mph) | Low
(< 6 mph) |
Moderate
(6 - 12 mph) |
High
(> 12 mph) |
| 6.2 mi | 4.0 mi | 3.2 mi | 7+ mi | 5.6 mi | 4.2 mi |
| Container Type | Highway tank truck or trailer |
|---|
| First ISOLATE in all Directions. | 2000 ft |
|---|
| Then PROTECT downwind |
|---|
| DAY | NIGHT |
|---|
Low
(< 6 mph) |
Moderate
(6 - 12 mph) |
High
(> 12 mph) | Low
(< 6 mph) |
Moderate
(6 - 12 mph) |
High
(> 12 mph) |
| 3.6 mi | 2.1 mi | 1.8 mi | 4.3 mi | 3.1 mi | 2.5 mi |
| Container Type | Multiple ton cylinders |
|---|
| First ISOLATE in all Directions. | 1000 ft |
|---|
| Then PROTECT downwind |
|---|
| DAY | NIGHT |
|---|
Low
(< 6 mph) |
Moderate
(6 - 12 mph) |
High
(> 12 mph) | Low
(< 6 mph) |
Moderate
(6 - 12 mph) |
High
(> 12 mph) |
| 1.3 mi | 0.8 mi | 0.6 mi | 2.5 mi | 1.5 mi | 0.8 mi |
| Container Type | Multiple small cylinders or single ton cylinder |
|---|
| First ISOLATE in all Directions. | 500 ft |
|---|
| Then PROTECT downwind |
|---|
| DAY | NIGHT |
|---|
Low
(< 6 mph) |
Moderate
(6 - 12 mph) |
High
(> 12 mph) | Low
(< 6 mph) |
Moderate
(6 - 12 mph) |
High
(> 12 mph) |
| 0.9 mi | 0.5 mi | 0.3 mi | 1.8 mi | 0.8 mi | 0.4 mi |
