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Salem Fire Department ISI Viking Air pack Training 2008
SCBA Training Salem Fire Department ISI Viking Air pack Training 2008
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Motivation & Introduction
One of the most important safety items 1500 Leonardo da Vinci determines need for respiratory protection To prevent injury and death due to exposure of airborne contaminates Why must we (Fire Fighters) wear SCBA? Because OR-OSHA says so? 5 mil workers require respiratory protection $94 mil per year in respiratory related injuries Live longer & healthier (think retirement) Make it through the shift
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History Alexander Humbolt developed the first self-contained breathing apparatus 1795
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History The Galibert breathing apparatus was an early oxygen rebreather developed in 1864
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History 1877-The Fayol breathing apparatus may have been the first true pressure-demand apparatus
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History Also in 1877, the LaCour apparatus was developed in the United States Very few manufacturers of apparatus prior to 1914, 1st WW forced improvements Many departments required beards at least 6 inches as late as 1910
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Course Objectives OSHA respiratory Medical Questionnaire
Identify 3 hazardous atmospheres Describe respiratory effects of heated gases & O2 deficient atmospheres Explain toxic gases produced by ordinary household items SCBA basic components When SCBA is ready for use
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Course Objectives (Continued)
SCBA limitations and user limitations Proper maintenance Don and Doff procedures SFD operational guidelines, CCC guidelines and the Respiratory Protection Plan
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Course Goals Identify all components of the SCBA
Proper maintenance & restore to service Don and Doff Identify hazardous atmospheres and when to wear SCBA
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Course Goals (Continued)
Know when unit is ready for service when needed Limitations of SCBA and user Hazards of compressed air systems and safety considerations Buddy breathing & other emergency exit techniques
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Requirements for Wearing an SCBA
Knowledge SFD Respiratory Protection Plan Established program to assist with proper use of respirators Physical and Medical Requirements All employees required to wear a respirator will complete medical evaluation form and submit to follow up medical evaluation if necessary
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Requirements for wearing an SCBA
Mental and Physical Agility Employees will be capable of working in environments that require the use of a respirator Must be able to stand, bend, kneel, reach, lift, etc Cannot be claustrophobic Facial Features SFD will provide you with a mask that fits Facial hair will not be allowed between the mask seal and the face
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Limitations when wearing SCBA
Limited visibility Fogging of mask Decreased ability to communicate Voice diaphragm & Voice Amplification Respiratory rate and volume Increased weight Approximately 30 pounds with Carbon Fiber Bottles Decreased mobility Knowledge of how to wear and adjust your SCBA will assist with mobility issues 45 minutes of air
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Types of breathing apparatus
Open Circuit Most common in fire service Uses compressed air Exhaled air is vented outside Closed Circuit Uses compressed or liquid Oxygen Exhaled air is processed through a “rebreather” 30 min – 4 hours
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6 Basic Components of the SCBA
Air Cylinder Assembly Bottle Valve & Pressure gauge Back Frame Frame Assembly Straps Pneumatics Bottle & RIC connections Mask mounted regulator Buddy Breathing hose
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6 Basic Components (contunued)
EOSTI Alarm Bell Lights Gauge/PASS Console Radio Interface Voice Amplifier Controls Mask & HUD
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Air Cylinder Assembly High pressure 2500 psi, approx. 47 cu ft of air
Carbon Fiber wrapped aluminum cylinder Approximately 20 minutes of supplied air Valve & Pressure Gauge
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WARNING!! Do not fill SCBA Bottles until you have received proper training
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Backpack and Frame Ergonomic design Composite Pack frame Kevlar straps
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Pneumatics Bottle & RIC connection Mask connection coupling
Buddy Breathing
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Buddy Breathing Quick disconnect couplings
Located in back frame near bottle valve 3’ tether w/ a male & female connection Requires practice NEVER TAKE YOUR MASK OFF TO ASSIST ALWAYS RESTORE HOSE WITH THE SYSTEM CHARGED WITH AIR
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EOSTI (Low Air Alarm) Alarm Sounds at ¼ Air Remaining
Low Air Alarm Bell In Back Frame Heads up Display lights In Mask Red light only Pressure Gauge On Shoulder harness Less that 12 on gauge
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Pressure Gauge - Low Air Alarm
This gauge most accurate Should be within 200 PSI of Tank Gauge LED display shows pressure remaining in cylinder ( 39 means 3900 psi )
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Pressure Gauge & PASS Air activated PASS Manual PASS
Hands Free Indicator Push to Talk Radio button PASS alarm light indicators
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Facepiece CBRN Approved 3 sizes “S-M-L” Components Air Switch
By-Pass Knob Voice Amp. Head net harness Polycarbonate visor Optically-corrected Scratch resistant Heads Up Display
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Heads up Display ( HUD) Air Status Low battery PASS Pre-Alert
Radio Transmit Low Air Alarm (EOSTI)
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Heads up Display ‘cont’
4 lights full to ¾ 3 lights ¾ to ½ 2 lights ( amber & red only ) ½ to ¼ 1 light ( red ) ¼ tank & low air alarm sounding
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Heads up Display ‘cont’
Pass Alarm in Pre-Alert Alternating Red & Green lights while in Pre-Alert. Lights return to Normal Air Status when PASS goes into Full-Alert
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Daily Inspections of SCBA
Tank Full Tank gauge indicates 2200 PSI or above 2500 PSI is a Full Cylinder Entire unit is clean All mask and backframe straps extended All hoses intact and connected Stored correctly
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Weekly Inspections of SCBA per NFPA 1404 and 1500
Tank Full Tank gauge indicates above 2200 PSI 2500 PSI is a Full Cylinder Entire unit is clean All straps extended All hoses intact and connected Air Switch & Bypass operational
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Weekly Inspection - Continued
Charge the System Listen for 3 sounds to indicate proper function Air at the Mask regulator Short Alarm Bell PASS Alarm Chirps Check for leaks Watch & listen for Air leaking Operate the low pressure alarm
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Weekly Inspections – Continued
Check valve for damage Gauge for pressure Inspect Cylinder Look for Cracks, Gouges, any frayed material, or deep scratches Hydrostatic test – required every 5 years for Carbon Fiber cylinders
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Weekly Inspections – Continued
Hydrostatic test dates
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Monthly Inspections of SCBA per NFPA 1404 and 1500
Same as weekly Check all components for deterioration & damage Leaks Operation of all gauges and valves Proper pressure ALWAYS CLEAN UNIT IF NECESSARY ALWAYS TAG DAMAGED UNITS
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Yearly Inspections of SCBA per NFPA 1404 and 1500
“Factory level” testing Flow testing conducted by certified SFD personnel at Sta 1. All Maintenance will be performed by the Air Pack Technicians To include changing of batteries as well
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Repair and Maintenance
Repair tags & Out of Service tags Name, date, user, vehicle #, nature of problem Green tags vs. red tags Out of service on while scene Locate SCBA so it won’t be used
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Respiratory Hazards
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IMMEDIATELY DANGEROUS to LIFE or HEALTH
“The maximum concentration from which, in the event of respirator failure, one could escape within 30 minutes without experiencing any escape-impairing or irreversible health effects” IDLH
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Elevated Temperatures
Heated air can damage respiratory tract Moist heated air is worse Temperature exceeding 120F – 130F can cause: Decreased BP Failure of the respiratory tract Severe respiratory edema Not reversible by providing fresh cool air
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Smoke Smoke mostly combination of:
Tar Carbon Dust Particles provide for the condensation of gaseous products Some particles are irritating, some are lethal
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Oxygen Deficiency The combustion process consumes O2
Creates toxic gases that dilute or displaces O2 Effects of O2 deficiency 21% - normal 19.5% - OK by OSHA 17% - Increased resp rate, reduced muscular coordination 12% - Dizziness, headache, rapid fatigue 9% - Unconsciousness 6% - Death within a few minutes
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Toxic Gases Some cause disease of lung tissue and impair its function
Some impair O2 carrying capacity of the red blood cells
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Common Gases – Carbon Monoxide
Causes more deaths than any other product of combustion Colorless, odorless Present at all fires Caused By Incomplete combustion Combines with red blood cells 200X more readily than O2
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Common Gases - Carbon Monoxide
Ppm % in air Symptoms No symptoms Mild Headache Headache after 1 to 2 hr Headache after 45 mins. Nausea, collapse, unconscious after 2 hrs 1, Dangerous – unconsciousness after 1 hr 1, Headache, Dizziness, Nausea after 20mins 3, Headache, dizziness, Nausea after 5 to mins. Unconsciousness after 30 mins. 6, Headache, dizziness, Nausea after 1 to mins. Unconsciousness after 10 to mins. 12, Immediate unconsciousness, Danger of death in 1 to 3 mins
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CO
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Common Gases – Hydrogen Chloride
Intense irritation of eyes & respiratory tract Swelling of respiratory tract
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Common Gases – Hydrogen Cyanide
Rapid killer – quick & painless Interferes with exchange of O2 & CO2
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Common Gases – Carbon Dioxide
Colorless, odorless End product of combustion Stimulates the respiratory system
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Common Gasses – Carbon Dioxide
Ppm % in Air Symptoms 5, No symptoms 20, Breathing rate increases by 50 30, Breathing rate increases by 100% 50, Vomiting, Dizziness, Disorientation after 30 mins 80, Headache, Vomiting, Dizziness, Breathing difficult after short exposure 100, Death in a few minutes
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CO2
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Common Gases – Nitrogen Oxides
2 types present Nitrogen dioxide (NO2)– most dangerous Nitrogen oxide (NO) – converts to NO2 with O2 & moisture Irritating effects in nose & throat can be tolerated even when a lethal dose is inhaled
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Common Gases – Phosgene
Colorless & tasteless Produced when freon contacts a flame Full toxic effect not evident for several hours Forms hydrochloric acid in contact with water 6 ppm – coughing, eye irritation 25 ppm – fatal
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Chlorine
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Ammonia
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Methods of Donning and Doffing
Individual Performance Standards 2.4.1A Donning #1 2.4.1B Donning in a Jump Seat 2.4.1C Changing SCBA Bottle 2.4.2B SCBA checks
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Fit Test Methods What is the difference in a qualitative and quantitative fit test A quantitative test is done with a machine, such as the Port-a-count The machine used on the quantitative test measures the ambient air and samples the air inside the mask and measures the difference in the two
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Fit Test Methods (Continued)
The qualitative test does not use a machine but depends on individual reaction When doing a qualitative test a testing agent such as irritant smoke is blown around the users mask. If the user starts coughing it is an indication of a poor fit A Banana Oil or Saccharine solution may be used as a testing agent in which the user would be alarmed to a poor fit if he or she could taste the agent
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Buddy Breathing If your lost and running low on air
Practice, practice, practice If your lost and running low on air Notify your partner Utilize Controlled Breathing Connect to your partners Buddy Breathing hose Notify Command for immediate evacuation or rescue
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Controlled Breathing – Skip Breathing
Normal inhalation through the nose Forced exhales through mouth Decreases the amount of air consumed SKIP BREATHING Inhale-exhale-inhale-inhale-exhale Normal breaths used to extend use of remaining air while keeping CO2 in lungs in proper balance
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Emergency Escape Contact Command RIT Breathing Techniques
Know where you are at all times Never remove your mask to help another Keep calm and THINK
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How do you tell when it is ready to use?
Unit intact and clean All straps fully extended Air Cylinder is Full Face piece clean and in good repair You hear whoosh of air to regulator and alarm sounds Bottle and regulator gauge reads full Pass device activates
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Maintenance Clean or decon after every use
Use a Mild soap solution on pack frame and cylinder, IE; dishwashing soap – DO NOT USE HARSH CLEANERS Clean facepiece with specific soap that is provided Malfunctioning SCBA – send in for repair
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