2004 ERG (Emergency Response Guidebook)
This is an online version of the 2004 ERG (Emergency Response Guidebook) which is produced by the USDOT for first responders during the initial phase of a Dangerous goods/Hazardous Materials incident. Have you ever wondered what those four digit numbers on the placards on the side of trucks and rail cars mean? Our online 2004 ERG will give you your answer.
2004 ERG Menu
Table of Isolation and Protective Action Distances
UN Number Rage
[ 1005-1082 | 1092-1582 | 1583-1752 | 1754-1834 | 1836-1953 ][ 1955-2199 | 2202-2806 | 2810-2978 | 2985-3162 | 3246-3306 ]
[ 3307-9269 ]
UN# 1754 - 1834
| Isolation and Protective Action Distances Table | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SMALL SPILLS | LARGE SPILLS | ||||||||||||
| UN# | Name of Material | First ISOLATE in all Directions | Then PROTECT Persons Downwind During- | First ISOLATE in all Directions | Then PROTECT Persons Downwind During- | ||||||||
| Day | Night | Day | Night | ||||||||||
| m | ft | km | mi | km | mi | m | ft | km | mi | km | mi | ||
|
Please see: How to use the table of initial isolation and protective action distances | |||||||||||||
| 1754 | Chlorosulfonic acid (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.6 | 0.4 | 90 | 300 | 0.7 | 0.5 | 2.8 | 1.7 |
| 1754 | Chlorosulfonic acid (when spilled on land) | 30 | 100 | 0.1 | 0.1 | 0.1 | 0.1 | 30 | 100 | 0.3 | 0.2 | 0.4 | 0.3 |
| 1754 | Chlorosulfonic acid and Sulfur trioxide mixture (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.6 | 0.4 | 90 | 300 | 0.7 | 0.5 | 2.8 | 1.7 |
| 1754 | Chlorosulfonic acid and Sulfur trioxide mixture (when spilled on land) | 60 | 200 | 0.4 | 0.2 | 1 | 0.6 | 330 | 1000 | 2.5 | 1.5 | 6.5 | 4 |
| 1754 | Chlorosulphonic acid (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.6 | 0.4 | 90 | 300 | 0.7 | 0.5 | 2.8 | 1.7 |
| 1754 | Chlorosulphonic acid (when spilled on land) | 30 | 100 | 0.1 | 0.1 | 0.1 | 0.1 | 30 | 100 | 0.3 | 0.2 | 0.4 | 0.3 |
| 1754 | Chlorosulphonic acid and Sulphur trioxide mixture (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.6 | 0.4 | 90 | 300 | 0.7 | 0.5 | 2.8 | 1.7 |
| 1754 | Chlorosulphonic acid and Sulphur trioxide mixture (when spilled on land) | 60 | 200 | 0.4 | 0.2 | 1 | 0.6 | 330 | 1000 | 2.5 | 1.5 | 6.5 | 4 |
| 1754 | Sulfur trioxide and Chlorosulfonic acid mixture (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.6 | 0.4 | 90 | 300 | 0.7 | 0.5 | 2.8 | 1.7 |
| 1754 | Sulfur trioxide and Chlorosulfonic acid mixture (when spilled on land) | 60 | 200 | 0.4 | 0.2 | 1 | 0.6 | 330 | 1000 | 2.5 | 1.5 | 6.5 | 4 |
| 1754 | Sulphur trioxide and Chlorosulphonic acid mixture (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.6 | 0.4 | 90 | 300 | 0.7 | 0.5 | 2.8 | 1.7 |
| 1754 | Sulphur trioxide and Chlorosulphonic acid mixture (when spilled on land) | 60 | 200 | 0.4 | 0.2 | 1 | 0.6 | 330 | 1000 | 2.5 | 1.5 | 6.5 | 4 |
| 1758 | Chromium oxychloride (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.2 | 0.1 | 30 | 100 | 0.3 | 0.2 | 1.3 | 0.8 |
| 1763 | Cyclohexyl- trichlorosilane (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.3 | 0.2 | 90 | 300 | 0.8 | 0.5 | 3 | 1.9 |
| 1766 | Dichlorophenyl- trichlorosilane (when spilled in water) | 30 | 100 | 0.2 | 0.1 | 0.9 | 0.6 | 210 | 700 | 2.1 | 1.3 | 5.7 | 3.6 |
| 1767 | Diethyldichlorosilane (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.1 | 0.1 | 60 | 200 | 0.4 | 0.3 | 1.3 | 0.8 |
| 1769 | Diphenyldichlorosilane (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.1 | 0.1 | 30 | 100 | 0.3 | 0.2 | 1.2 | 0.8 |
| 1771 | Dodecyltrichlorosilane (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.2 | 0.1 | 60 | 200 | 0.5 | 0.3 | 1.8 | 1.2 |
| 1777 | Fluorosulfonic acid (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.5 | 0.3 | 120 | 400 | 1 | 0.6 | 3.4 | 2.1 |
| 1777 | Fluorosulphonic acid (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.5 | 0.3 | 120 | 400 | 1 | 0.6 | 3.4 | 2.1 |
| 1784 | Hexyltrichlorosilane (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.4 | 0.3 | 120 | 400 | 1 | 0.7 | 3.8 | 2.4 |
| 1799 | Nonyltrichlorosilane (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.3 | 0.2 | 60 | 200 | 0.6 | 0.4 | 2.5 | 1.6 |
| 1800 | Octadecyl- trichlorosilane (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.3 | 0.2 | 90 | 300 | 0.8 | 0.5 | 2.9 | 1.8 |
| 1801 | Octyltrichlorosilane (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.3 | 0.2 | 60 | 200 | 0.6 | 0.4 | 2.5 | 1.6 |
| 1804 | Phenyltrichlorosilane (when spilled in water) | 30 | 100 | 0.2 | 0.1 | 0.9 | 0.6 | 240 | 800 | 2.2 | 1.4 | 6.4 | 4 |
| 1806 | Phosphorus pentachloride (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.5 | 0.3 | 90 | 300 | 0.8 | 0.5 | 3.1 | 1.9 |
| 1809 | Phosphorus trichloride (when spilled in water) | 30 | 100 | 0.2 | 0.1 | 0.7 | 0.4 | 180 | 600 | 1.6 | 1 | 4.8 | 3 |
| 1809 | Phosphorus trichloride (when spilled on land) | 30 | 100 | 0.2 | 0.1 | 0.4 | 0.3 | 150 | 500 | 1.5 | 1 | 3.5 | 2.2 |
| 1810 | Phosphorus oxychloride (when spilled in water) | 30 | 100 | 0.2 | 0.1 | 1 | 0.6 | 240 | 800 | 2.3 | 1.5 | 6.3 | 3.9 |
| 1810 | Phosphorus oxychloride (when spilled on land) | 30 | 100 | 0.2 | 0.2 | 0.4 | 0.3 | 120 | 400 | 1 | 0.7 | 2.2 | 1.4 |
| 1816 | Propyltrichlorosilane (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.5 | 0.3 | 120 | 400 | 1.3 | 0.8 | 4.1 | 2.6 |
| 1818 | Silicon tetrachloride (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.6 | 0.4 | 150 | 500 | 1.5 | 1 | 4.6 | 2.9 |
| 1828 | Sulfur chlorides (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.6 | 0.4 | 150 | 500 | 1.4 | 0.9 | 4.9 | 3 |
| 1828 | Sulfur chlorides (when spilled on land) | 30 | 100 | 0.1 | 0.1 | 0.2 | 0.1 | 90 | 300 | 0.9 | 0.6 | 1.7 | 1.1 |
| 1828 | Sulphur chlorides (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.6 | 0.4 | 150 | 500 | 1.4 | 0.9 | 4.9 | 3 |
| 1828 | Sulphur chlorides (when spilled on land) | 30 | 100 | 0.1 | 0.1 | 0.2 | 0.1 | 90 | 300 | 0.9 | 0.6 | 1.7 | 1.1 |
| 1829 | Sulfur trioxide | 60 | 200 | 0.4 | 0.2 | 1 | 0.6 | 330 | 1000 | 2.5 | 1.5 | 6.5 | 4 |
| 1829 | Sulfur trioxide, inhibited | 60 | 200 | 0.4 | 0.2 | 1 | 0.6 | 330 | 1000 | 2.5 | 1.5 | 6.5 | 4 |
| 1829 | Sulfur trioxide, stabilized | 60 | 200 | 0.4 | 0.2 | 1 | 0.6 | 330 | 1000 | 2.5 | 1.5 | 6.5 | 4 |
| 1829 | Sulfur trioxide, uninhibited | 60 | 200 | 0.4 | 0.2 | 1 | 0.6 | 330 | 1000 | 2.5 | 1.5 | 6.5 | 4 |
| 1829 | Sulphur trioxide | 60 | 200 | 0.4 | 0.2 | 1 | 0.6 | 330 | 1000 | 2.5 | 1.5 | 6.5 | 4 |
| 1829 | Sulphur trioxide, inhibited | 60 | 200 | 0.4 | 0.2 | 1 | 0.6 | 330 | 1000 | 2.5 | 1.5 | 6.5 | 4 |
| 1829 | Sulphur trioxide, stabilized | 60 | 200 | 0.4 | 0.2 | 1 | 0.6 | 330 | 1000 | 2.5 | 1.5 | 6.5 | 4 |
| 1829 | Sulphur trioxide, uninhibited | 60 | 200 | 0.4 | 0.2 | 1 | 0.6 | 330 | 1000 | 2.5 | 1.5 | 6.5 | 4 |
| 1831 | Sulfuric acid, fuming | 60 | 200 | 0.4 | 0.2 | 1 | 0.6 | 330 | 1000 | 2.5 | 1.5 | 6.5 | 4 |
| 1831 | Sulfuric acid, fuming, with not less than 30% free Sulfur trioxide | 60 | 200 | 0.4 | 0.2 | 1 | 0.6 | 330 | 1000 | 2.5 | 1.5 | 6.5 | 4 |
| 1831 | Sulphuric acid, fuming | 60 | 200 | 0.4 | 0.2 | 1 | 0.6 | 330 | 1000 | 2.5 | 1.5 | 6.5 | 4 |
| 1831 | Sulphuric acid, fuming, with not less than 30% free Sulphur trioxide | 60 | 200 | 0.4 | 0.2 | 1 | 0.6 | 330 | 1000 | 2.5 | 1.5 | 6.5 | 4 |
| 1834 | Sulfuryl chloride (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.4 | 0.2 | 90 | 300 | 0.8 | 0.5 | 2.9 | 1.8 |
| 1834 | Sulfuryl chloride (when spilled on land) | 30 | 100 | 0.1 | 0.1 | 0.1 | 0.1 | 30 | 100 | 0.3 | 0.2 | 0.7 | 0.5 |
| 1834 | Sulphuryl chloride (when spilled in water) | 30 | 100 | 0.1 | 0.1 | 0.4 | 0.2 | 90 | 300 | 0.8 | 0.5 | 2.9 | 1.8 |
| 1834 | Sulphuryl chloride (when spilled on land) | 30 | 100 | 0.1 | 0.1 | 0.1 | 0.1 | 30 | 100 | 0.3 | 0.2 | 0.7 | 0.5 |
UN Number Rage
[ 1005-1082 | 1092-1582 | 1583-1752 | 1754-1834 | 1836-1953 ][ 1955-2199 | 2202-2806 | 2810-2978 | 2985-3162 | 3246-3306 ]
[ 3307-9269 ]
Data Source for our online 2004 ERG
This information was compiled from the 2004 Emergency Response Guidebook (2004 ERG) which is produced by the U.S. Department of Transportation.
Related Resources
- Guide for Handling Household Chemicals
Things you can do to make your home safer. - USDOT Hazardous Materials Table 49 CFR 172.101
An online version of the USDOT's listing of hazardous materials from 49CFR 172.101. This table can be sorted by proper shipping name, UN/NA ID and/or by primary hazard class/division. - US DOT Hazardous Materials Transportation Placards
Hazardous materials placards (DOT placards) are required when shipping hazardous materials in the United States, Canada and Mexico. These pages provide US DOT definitions for each hazmat placard. - Chemical Database
This database focuses on the most common chemical compounds used in the home and industry.
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To ensure regulatory compliance when transporting hazardous materials or dangerous goods, one must receive proper training and certification from a qualified instructor and refer to the current year's Code of Federal Regulations Title 49 (49CFR) or your country's shipping regulations. In matters regarding workplace safety, refer to current OSHA regulations (29CFR) and NIOSH guidelines or your own country's health and safety regulations. No one should ever enter into a hazardous environment without proper training from qualified instructors.
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