ERG Flashcards
What is displayed in the white pages?
- Table of contents
- Placard information
- Rail Car Identification Chart
What color pages organize materials by number?
Yellow pages
What color pages organize materials alphabetically?
Blue pages
What are the orange pages? What can be found in them?
Guide pages. Warnings about the dangers of the chemical, PPE and isolation distance recommendations, and recommendations for mitigation
- Potential Hazards: health vs fire/ explosion
- Public safety: Protective clothing & Evacuation
- Emergency response: fire, spill or leak, first aid
What can be found in the green pages?
Table 1- Initial isolation and protective action distances for large and small spills. Day and night.
Table 2- A list of water reactive materials that produce TIH gases
Table 3- Initial isolation and protective action distances for large spills for different quantities of 6 common TIH gases.
Where can you find 24 hour emergency response telephone numbers?
The very back of the ERG
How many psi will a non-pressure/ low pressure Rail Car normally have?
Less than 25 psi
How many psi will a pressurized Rail Car typically have?
Above 40 psi
What common markings will rail cars have?
- Reporting marks and car number
- Load limit (pounds or kilograms)
- Empty weight of car, placard
- Tank qualification and pressure relief device information
- Car specification
- Commodity name
Name the characteristics of a Pressure Tank Car
-Flammable, Non-Flammable, Toxic
and/or liquefied compressed gases
- Protective housing
- No bottom fittings
- Pressures usually above 40 psi
Name the characteristics of a General Service Tank Car (low pressure)
-For variety of hazardous and non-
hazardous materials
- Fittings and valves usually visable at
the top of the tank
- Some may have a bottom outlet
- Pressures usually below 25 psi
Name the characteristics of a Low Pressure Tank Car (TC117, DOT117)
- For flammable liquids (crude oil,
ethanol) - Protective housing separate from
manway - Bottom outlet valve
- Pressure usually below 25 psi
Name the characteristics of a Box Car
- For general freight that carry bulk or
non-bulk packages - May transport hazardous materials/
dangerous goods in small packages or “tote-bins” - Single or double sliding door
Name the characteristics of a Hopper Car
- Bulk commodities and bulk cargo
- Bulk lading discharged by gravity
through the hopper bottom doors
when opened
Name the characteristics of a MC331
- Liquefied compressed gasses (LPG,
ammonia) - Rounded heads
- Designed pressure between 100-
500 psi
Name the characteristics of a MC338
- Cryogenics
- Similar to a giant thermo bottle
- Fitting compartments located in rear cabinet
- MAWP between 25-500 psi
Name the characteristics of a MC306/DOT406
- Flammable liquids
- Elliptical cross section
- Rollover protection
- Bottom outlet valves
- MAWP between 3-15 psi
Name the characteristics of a MC307/DOT407
- For toxic, corrosive, and flammable
liquids, and food grade liquids - Circular Cross-section
- May have external ring stiffeners
- MAWP of at least 25 psi
- Can sometimes have an external
housing that is the shape of a horse-
shoe
What does it mean if there is a “p” next to a chemical?
There is a polymerization hazard
Name all the hazard classes
- Explosives
- Gases
- Flammable liquids
- Flammable solids
- Oxidizers
- Toxic and Infectious substances
- Radioactive materials
- Corrosive substances
- Misc
Name all the sub-classes of hazard class 1.
1.1- Mass Explosion hazard
1.2- Projection hazard, no mass explosion
1.3- Fire hazard and either a minor blast hazard or a minor projection hazard or both, but not a mass explosion hazard
1.4- No significant hazard
1.5- Very insensitive explosives WITH a mass explosion hazard
1.6- Extremely insensitive articles which do not have a mass explosion hazard
Sub-classes of hazard class 2.
2.1- Flammable gases
2.2- Non-flammable, non-toxic gases
2.3- Toxic gases
Sub-classes of hazard class 4.
4.1- Flammable solids, self-reactive substances and solid desensitized explosives
4.2- Substances liable to spontaneous combustion
4.3- Substances which in contact with water emit flammable gases
Sub-classes of hazard class 5.
5.1- Oxidizing substances
5.2- Oxidizing peroxides
Sub-classes of hazard class 6.
6.1- Toxic substances
6.2- Infectious substances
What does it mean if there is a “p” next to a chemical?
There is a polymerization hazard
What is guide 111 for?
Mixed loads or unidentified cargo. Danger or dangerous placard
What is guide 127 for?
Flammable liquids
What is guide 153 for?
Corrosives
