Hazmat Operations
Cylinders
(Pressurized containers) (up to 119 g) -Compressed or liquefied gas -Flammable or combustible liquids -Poisons -Corrosives -Radioactive materials
Bags
(dry goods) -Dry corrosives -Blasting agents -explosives -Flammable solids -Oxidizers -Poisons -Pesticides
Identify the THREE surrounding conditions that should be evaluated when determining the potential harm at an incident.
- Size of the Breach - Size of the container - Wind direction and speed
Pressure Rail Car
-Enclosed Dome on top - 100-600 psi
Identify the THREE things that low pressure chemical cargo tank trucks (MC-307/DOT-407) typically carry.
-Flammable Liquids -Poisons -Corrosives
DANGER (pesticide)
-Is highly toxic by at least one route of exposure -May be corrosive, causing irreversible damage to the skin or eyes -May be highly toxic and even fatal if eaten, absorbed through the skin, or inhaled
WARNING (pesticide)
-Is moderately toxic if eaten, absorbed through the skin, or inhaled -Causes moderate eye or skin irritation
CAUTION (pesticide)
-Is slightly toxic if eaten, absorbed through the skin, or inhaled -Causes slight eye or skin irritation
Non-bulk packaging is defined as a packaging that has:
1. A maximum capacity of 119 gallons (450 L) or less as a receptacle for a liquid 2. A maximum net mass of 8oo pounds (400 kg) or less and a maximum capacity of 119 gallons (450L) or less as a receptacle for a solid 3. A water capacity of 1,000 pounds (454 kg) or less as a receptacle for a gas
The Three EPA signal words
1. CAUTION 2. WARNING 3. DANGER
As an Operations level responder, you respond to a leaking LPG tank that is next to a small shopping mall.
1. Guide people in and near the shopping mall to safety 2. Protect the overall environment 3. Protect the surrounding property from the effects of potential release
Bulk packaging is defined as a container that has no intermediate form of containment and has:
1.A maximum capacity greater than 119 gallons (450 L) as a receptacle for a liquid 2.A maximum net mass greater than 800 pounds (400 kg) and a maximum capacity greater than 119 gallons (450 L) as a receptacle for a solid 3.A water capacity greater than 1,000 pounds (454 kg) as a receptacle for a gas
Pressure railway tank cars can transport gases under pressures ranging from:
100-600 psi
General (nonpressure) car
4,000-45,000 g -Flammable/combustible liquids Flammable solids -Oxidizers -Liquid Poisons -Corrosives
Pressure railway cars
4,000-45,000 g 100-600 psi -Liquified gas -Gases -Water reactives -Toxics -Corrosives
Type C (Radioactive)
Air transport of highly radioactive materials.
A prerequisite for becoming certified as an operations level responder is that you must:
Be currently certified as an operations level responder.
MC-312 DOT(412)
Corrosives Cargo Tank -5-25 psi -4,000-6,000 gallons -corrosives, high specific gravity liquids -Round cross section -stiffener rings exterior
MC-338
Cryogenic -At least -130 degrees -Rear box cabinet -23-500 psi -liquid oxygen, hydrogen, carbon dioxide
Dewar Flasks
Cryogenic materials. 4-125 g
Analyze the HazMat incident
Determine the Magnitude of the problem in terms of outcomes
Plan the Initial Response
Determine the capabilities and competencies of available personnel.PPE, and equipment
The operations level goal for analyzing a HazMat Incident is to:
Determine the magnitude of the problem, in terms of outcomes, while performing your assigned tasks.
Type B (Radioactive)
Exceed Limits of Type A. In event of release, high radiation hazard to public and environment. Very large and heavy.
Implement the planned response
Favorably change outcomes consistent with the LERP and SOP
The minimum temperature at which a material gives off enough vapor to form an ignitable mixture with air is called the material's
Flash Point
Condensation
Gas to Liquid
MC-331
Gasses liquified by pressure -100-500 psi -2,500 - 11,500 gal -Propane, butane, chlorine, anhydrous ammonia -Rounded ends
Carboys
Glass, plastic, or steel container, (6-16 g) -Class 3 (Flammables) -Class 4 (Solids dissolved or suspended) -Class 5 (Oxidizers) -Class 6 (Poisons) -Class 8 (Corrosives)
Third goal
Implement the planned response to favorably effect the outcome.
At a HazMat incident, you are trying to favorably change the outcomes while performing your given tasks. The changes you're trying to make are consistent with your LERP and your organization's SOPs. The Operations level goal that you are fulfilling is:
Implementing the planned response.
vaporization
Liquid to Gas
Freezing
Liquid to Solid
MC-307 DOT(407)
Low-pressure bulk liquid -up to 40 psi -6,000 gallons max -mild acids -milk, water, combustibles
During a physical examination, Responder Lunt's doctor notices edema. The doctor runs some tests which reveal protein urea. Responder Lunt was recently exposed to a chemical hazard. Based on this information, which target organ effect is to blame?
Nephrotoxins
Second Goal
Plan the initial response
Vapor Pressure
Pressure exerted on the inside of a closed container by the vapor in the space above the liquid in the container
Vapor Density
Ratio of the weight of a vapor to the weight of an equal volume of air
Evaluate the progress
Review actions taken, ensure response objectives are being met safely, effectively, and efficiently
All of the following factors influence harm EXCEPT:
Speed at which the material spreads
You've covered a lot of ground so far. Let's make sure you remember it all! All of the following factors influence harm EXCEPT
Speed at which the material spreads
NFPA 704
Standard System for the Identification of the Hazards of Materials for Emergency Response. - "Fire Diamond" -Blue (Health hazards) -Red (Flammability) -Yellow (Chemical reactivity) - White (Specific Hazards)
Role of EPA (Environmental Protection Agency)
Through coordinating and implementing a wide range of activities, EPA conducts removal actions to protect human health and the environment.
Type A package (Radioactive)
Type A packages are designed and built for their durability under stress and must demonstrate their ability to withstand a series of tests without releasing their contents. High radioactive contents
First Goal
analyze the incident
Cryogenic railway cars
below 25 psi Temperatures of -130 and below. -Argon -Hydrogen -Nitrogen -Oxygen
MC-306 DOT(406)
non Pressure bulk liquid -up to 3 or 4 psi -Petrolium products -Milk or water -9,000 gallons max -Oval (egg) cross section -Flat ends
A container that is a pressure tank, has a convex head, possesses a capacity of approximately 2,000 pounds (907 kg), and commonly contains chlorine is an example of a(n):
ton container