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Published byAugust McLaughlin Modified over 8 years ago
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Hazardous Situation
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LIST physical hazards encountered by Boarding Teams. DESCRIBE the three step process for handling hazardous situations. LIST examples of hazards associated with vessels carrying cargo. DEFINE intrinsically safe. Objectives – Part I – Hazardous Situations
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Objectives – Part I – Hazardous Situations (continued) LIST the three classes of intrinsically safe equipment. EXPLAIN how to identify intrinsically safe items. EXPLAIN how hazardous material shipped as cargo is marked and how to locate it using the Dangerous Cargo Manifest. LIST the classifications of hazardous materials.
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Objectives – Part I – Hazardous Situations (continued) LIST the indicators that an area might be contaminated by hazardous material. IDENTIFY biological hazards which may be encountered during a boarding.
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DEFINE confined spaces, enclosed spaces, and competent person. STATE Commandant’s policy for entry into confined or enclosed spaces where contamination is likely. LIST equipment requirements for conducting boardings in an enclosed or confined space. Objectives – Part II – Confined Spaces
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Objectives – Part II – Confined Spaces (continued) EXPLAIN the parameters of the O2 sensor and Four Gas Analyzer. EXPLAIN operation of the radiation pager. IDENTIFY units required to have Level II (Indentifinder-U/ RADPAK) equipment.
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Topics Physical Hazards Hazards Associated with Cargo Biological Hazards Confined Spaces Level I Radiation Detection
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Physical Hazards
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Identify
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Communicate
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Secure / Avoid
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Hazards with Cargo
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Crushing Broken Containers
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Hazards with Cargo Crushing Broken Containers Stability
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Which One to Open?
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NONE!!!
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Removes Oxygen Hydrogen Sulfide Hazards with Cargo Crushing Broken Containers Stability Organic
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Hazards with Cargo Bulk Dry Cargo Removes Oxygen Hydrogen Sulfide Crushing Broken Containers Stability Organic Explosive
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Hazards with Cargo Bulk Dry Cargo Removes Oxygen Hydrogen Sulfide Crushing Broken Containers Stability Organic Explosive Engulfment
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Cargo Ships
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LNGs, Tug Boats, Fuel Barges
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Boarding Equipment
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More Tools of the Trade
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"Equipment and wiring that are incapable of releasing sufficient electrical energy under normal or abnormal conditions to cause ignition of a specific hazardous atmospheric mixture in its most easily ignited concentration." Intrinsically Safe
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Kaboom!!!
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Hazardous Location Classes Class I Flammable gases or vapors (Gasoline, Benzene, Ammonia, Toluene) Class II Combustible Dust (Corn, Untreated Wheat, Rice, Sugar) Class III Easily ignitable fibers or flyings (Cotton Fiber, Sawdust, Wood Shavings)
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Equipment that is intrinsically safe will be labeled for the hazardous location it is designed for. An example would look like this: BRIGHT STAR 2117 Listed flashlight for Hazardous Location Class I Group C & D Class II Group G What to Look For
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Boarding Team Safety Awareness: Know what kind of cargo the vessel you are boarding is carrying. Inspect your gear: Ensure that items you have with you are intrinsically safe When in doubt: Notify OPCON Consult the experts (MSO’s, national strike force, local HAZMAT teams)
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Hazardous Cargo Labels/Placards
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Look Up 2901 Bromine Chloride Guide 124 Green Section Emergency Response Guidebook http://hazmat.dot.gov/pubs/erg/gydebook.htm
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Dangerous Cargo Manifest
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Physical Indicators
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Animals Animals Biological Hazards
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Shark Bite Animals Animals Marine Life Marine Life Biological Hazards
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Marine Life Hazards
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Spider Bite Animals Animals Marine Life Marine Life Insects Insects Biological Hazards
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Animals Marine Life Insects Disease Biological Hazards
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Animals Marine Life Insects Disease - Mycobacteria Marinum Biological Hazards
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Animals Animals Marine Life Marine Life Insects Insects Disease Disease Food and Water Food and Water Biological Hazards
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Confined Space Defined Not designed for continuous human occupancy Limited means of entry and exit Limited means of ventilation
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Enclosed Space Defined 29 CFR 1914 (q) states “Any space, other than a confined space, which is enclosed by bulkheads and an overhead.” “May include cargo holds, tanks quarters and machinery spaces.”
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Coast Guard Policy Boarding personnel shall not enter any confined or enclosed spaces that are likely to have atmospheric hazards-oxygen depletion, flammable gases, toxic contaminants-until they have been certified safe for entry by a competent person
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Qualified Individuals Marine Chemist Certified Industrial Hygienist Gas Free Engineer Competent Person
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Oxygen Deficiency –19.5% and below Flammable Vapors –10% of LEL Toxic Atmosphere –No Entry if Present Space Must be Tested
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Level I Radiation Detection WHEC WMEC WPBS TACLETS/MSSTS GRU/STAS Detection oriented http://cgweb.tcpet.uscg.mil/R ADIATION/default.asp
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Level I Radiation Detection Job Aid Controls and Display Energizing Changing Alarm Threshold Changing Alarm Types Calibration Searching Turning Pager Off Trouble Shooting
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MODE button LIGHT button Neutron in counts per second Low battery indicator Gamma in microrems per hour Visual radiation alarm Inferred (IR) Port Used for transferring data to PC. (Note: USCG will transfer data using the identiFINDER not the pager) Sensors located on front side (opposite of belt clip side) Controls and Display
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When switched off, the pager will display the word OFF. If the screen is blank, replace batteries. 1. To energize, press the MODE button for 1-2 seconds. Note: there is no beeping sound to indicate the unit has been energized (at this time). 2. The pager will run a 20-second test and then beep once to indicate that it is energized. 3. The pager will then calibrate. This will take about 40 seconds. 4. Once calibrated, the pager will switch to dose rate (search) mode. 5. Energizing
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Input Changes Note: The pager will recalibrate and go to search mode after six seconds of inactivity. Therefore, it’s best to review steps before pressing any buttons.
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The pager will automatically recalibrate and return to search mode after six seconds of inactivity. All pagers should be set to 9.8 Change the threshold by pressing MODE (for lower number) and LIGHT (for higher number) buttons. Note: Lower number = greater sensitivity. Press and release LIGHT button and the display should start blinking. Press and hold the LIGHT button until display changes to look like #2 (may have different numbers). 1. 2. 3. 4. Changing Alarm Threshold
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Press and hold the LIGHT button until display changes. 1 2 Press and release MODE button. This is the audible (sound) alarm setting. To switch the audible alarm on/off, use the LIGHT button. Press the MODE button to switch to the vibrating alarm. or ON OFF 3 or ON OFF This is the vibrating alarm setting. To switch the vibrating alarm on or off press the LIGHT button. 4 Changing Alarm Types
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Normal background radiation can vary from one environment to another. For this reason, it is best to calibrate upon boarding a ship or boat. The pager will calibrate. The pager will then automatically return to search mode. Press and hold the MODE button for two- three seconds, then release. Calibration
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When your pager alarms: recalibrate use pager to locate source. If your pager reads 4,500 or more microrem per hour or displays “- OL-”, SMAC (stop, move away, alert, close off) and request Level II team. Note: Once an alarm is triggered, update the background by calibrating before resuming search. It may be necessary to repeat this several times until the source is located. The pager’s sensor is on the side opposite the belt clip. Be sure to expose this side to the direction of the source. Searching
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Searching (cont.) Radiation Source / Level Action…And…Response Gamma increasing but below alarm threshold Continue boarding Be aware that low level “hits” could indicate a distance source Gamma alarm less than 4,500 μrem/hr Determine source while maintaining ALARA Source is determined to be legitimate Source is suspect or unlocated Record findings and continue boarding Request Level II support Gamma 4,500+ μrem/hr or shows “OL”SMACMaintain ALARA Request Level II support if other that approved shipment Neutron 1-19 counts per second Determine source while maintaining ALARA Alarm is infrequent in short duration (one-five seconds) Alarm is consistent and continuous Continue boarding Secure situation and request Level II support Neutron 20+ counts per second SMACMaintain ALARA Use this table to help in decision making.
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To turn pager off, press and hold LIGHT and MODE buttons. Light button must be pressed first. 1st 2nd The pager will display the word “OFF” when the pager is off. If the screen is blank, replace batteries. Turning Pager Off
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Battery Coin Cover to battery compartment Insert battery positive side first. The pager uses one AA battery. Use a coin or tool to access the battery compartment from the side of the pager. Make sure pager is off before replacing battery. Troubleshooting problems with the pager is limited to changing batteries. + Troubleshooting
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Level II: IDENTIFINDER TACLETS/MSSTS Strike teams Response oriented
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