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HAZMAT Tech 1 - Info

HAZMAT Tech 1 - General Information (Section C)

QuestionAnswer
Responsibility of a Technician Analyze the incident,Plan a response,Implement the planned response, Evaluate the progress,Terminate the incident
Pipeline Products Different products may be transported in the same line using pigs (pipeline inspection gauge) Hazard Classes 2,3,6,8 and 9
Pipeline incident Call company to located Remote shutoff Pipeline marker indicates owner (POE), Pipeline maps can greatly assist when checking for gas mitigation
Procedures for checking gas midigation on pipeline Computerized system called SUpervisory Control and Data Acquisition System (SCADA), monitors system
Analysis process for Unknown Atmosphere Wearing level A, approaching cautiously from upwind and measure:(Radioactivity, Combustibility, Oxygen availability/ deficiency ,pH ,Hydrogen Sulfide ,Carbon Monoxide ,Organic vapors
Radioactive White I Radioactive material labels for <0.5 mrem/hr
Radioactive Yellow II Radioactive material labels for 0.5-50 mrem/hr transportation index is 1
Radioactive Yellow II Radioactive material labels for 50-200 mrem/hr transportation index is 1-10
Empty Rad Package applied to packages that have been empted of their contents as far as practical but still contains regulated amounts of internal contamination and radiation levels of less than 0.5 mrem/hr detectable outside the package
Fissile Applied to packages that contain fissile materials, critical safety index is noted on each package will be noted on label
Hazardous materials databases-Advantages identify and interpret hazard response information available through a variety of sources
Hazardous materials databases-DisAdvantages many databases available, some databases are public domain and some are trademarked
CAMEO Computer aided Management of Emergency Operations; System integrates chem database and method to mange data, air dispersion model, and mapping capability
MARPLOT Mapping Applications for Respons, planning and local operational tasks (part of CAMEO)
ALOHA atmospheric dispersion model for realeases (part of CAMEO)
CHRIS Chemical Hazard Respose Information System; developed by US. Coast Gaurd. HACS-Hazard assessment computer system for aquatic incidents
RTECS Registry of toxic Effects of Chemical Substances; more than 150,000 substances. six types- primary irration, mut effect, repro effects, tumorigenic(fetus), acute toxicity, other multiple dose toxitcity
OHM-TADS Oil and Haz Mat Tech Assistance Data System; designed for rapid retrieval of 850+ oil and haz substances.
Maps and diagrams (adv) Gives someone who is unfamiliar with area a fair representation of manmade structures and terrain
Maps and diagrams (dis-adv) May not be up to date and may be inaccurate
Monitoring equipment (adv) critical info on hazards present at hazmat incident site
Monitoring equipment (dis-adv) do not rely on only one piece of equipment
Reference manuals (adv) many ref manuals available from various ind. , corps, and fed agencies
Reference manuals (dis-adv) contain slightly different viewpoints and depths
Technical information centers CHEMTREC, CANUTEC SETIQ and NRC
Technical information centers (adv) Readily available, can activate emergency response mutual aid network
Technical information centers (dis-adv) may provide conflicting info
Technical information specialists (adv) experiance and edu
Technical information specialists (dis-adv) difficult to contact, no ind knows all answers
Cryogenic Liquid Spills Expansion ration (560- 1,445)gals to 1 gal, expands rapidly at room temp
Hepatoxins liver damage, Signs and symptoms: jaundice and liver enlargement; chemicals- carbon tetracholoride and nitrosamines
Nephrotoxins kidney damage; Signs and symptoms: edema and protien urea; chemicals: halogenated hydrocarbons and uranium
Neurotoxins central nervous system; Signs and symptoms:drooping of upper eylids, resp diff, seizures, and unconsciousness ; chemicals: lead, mercery, organophosphate pesticides and organic solvents
Peripheral Nervous system Hazards nerves that transmit messages to brain; Signs and symptoms: numbness, tingling, decrease sensation, change in reflexes, and decrease motor strength; chemicals: arsenic, lead, toluene and styrene
Blood agents decrease hemoglobin; Signs and symptoms: cyanosis (turn blue) and loss of cons; chemicals: carbon monoxide and benzene
Lung irritating Agents irritate or damage pulmonary tissue; Signs and symptoms: cough, tightness in chest, ans shortness of breath; chemicals: silica, asbestos, and HCL
Reproductive Toxins affect reproductive cap (mutations, teratogenesis); Signs and symptoms: birth defects and sterility; Chemicals:lead, DBCP
Cutaneous hazards dermal layer of skin; Signs and symptoms: defatting of the skin, rashes and irritation; Chemicals:ketones and chlorinated compounds
Eye hazards Effect eyes or visual capacity; Signs and symptoms: conjunctivities and corneal damage; Chemicals:organic solvents and acids
Determining Pressure in bulk packing or facility containers Pressure gauges, Temperature on contents
Determining Lading (liquid) remaining in damaged bulk packing Shipping papers, Container specification marking, Gauging devices, Frost line
Cracks a narrow split or break in the container’s metal that can penetrate through the metal of the container and may also be caused by fatigue (Catastrophic failure) (breach)
Gouges Reduction in container thickness made by a sharp, chisel-like object (breach)
Scores Reduction in container shell thickness made by a relatively blunt object (only catastrophic failure if found on welding’s)
Dents A deformation of the container metal made from the impact of a relatively blunt object
Determine Integrity of any Radiation container Visual inspection, smear or swipe test, transpertation index (1M away)
Guide to Hazardous Chemical Reactions (NFPA- 491M) 160 chemicals - parameters to determine the degree and extent of hazardous locations
Handbook of Reactive Chemical Hazards (Bretherick) over 5000 chemicals- Chemicals that are reactive hazards
Hazardous chemicals Desk Reference (Lewis) appr 5000 chemicals- Safety profiles, synonyms, physical properties,standards, and recommendations of government agencies for important and potentially hazardous chemicals
Fire protection systems allows application of fire extinguishing agents quicker and to manage an incident in the early stages
Monitoring and detection systems allows for the initiation of control actions while incident is small, early notification [limits threats to other containers]
Pressure relief and vacuum relief protection pressure relief devices capable of operating freely to keep tank from failing violently/tank rupture (BLEVE)
Fission plugs plugs that melt in middle at a certain temp
Rupture disc with fusible metal backing metal disk relieves pressure if the presure reaches dangerous levels
Spring-load relief valves When pressure exceeds setting, valve opens and discharges the cylinders contents
Product spillage and control minimize the exposure to adjoining tanks
Tank Spacing To minimize the hazard to uninvolved tanks, reduces threats to other tanks
Transfer options Ensure proper grounding, compatable substances in recieving container [minimize the hazard to surrounding containers], spark may occur in presence of flammable vapors
Bonding process of connecting two or more conductive objects together by means of a conductor [minimize diff in metalic objects]
Grounding one or more conductive objects to earth and is specific form of bonding
Resources for dispersion pattern prediction Weather service, Computer models, industrial facilities, Colleges and universities, County state and federal agencies (Health departments, Environmental protection agencies, US coast guard), [responders must be able to predict using these]
Determining the likely extent of the physical, safety, and health hazards First: Determine concentration; Second: determine acceptable exposure limits
Resources for predicting areas of potential Harm Computer modeling, Monitoring equipment, Technical assistance, Specialists
Process for estimation 1.Determine dimensions of endanger area 2.Estimating the number of exposures 3.Measure or predict concentration 4.Estimate physical,health,safety hazards in area [estimate by analyzing the physical, cognitive and technical information] 5. 6.
Three components of an incident The product , The container , The environment
Three elements of an incident A spill , A leak , A Fire
First method of measurement of unknown atmoshere Radioactivity (Racheal)
Last method of measurement of unknown atmoshere Organic Vapors (Off)
Comes after checking for PH paper in unknown atmoshere Hydrogen Sulfide (Her)
Comes after checking for Hydrogen Sulfide in an unknown atmoshere Carbon Monoxide (Coat)
Comes after checking for Oxygen availablity/deficiency in an unknown atmoshere PH (Pulls)
After checking for Radioactivity in an unknown atmoshere Combustibility (Comes)
Before checking for PH you should check for ______ in a unknown atmoshere Oxygen availability/deficiency (Over)
Created by: woodyb42