IFSTA(5th)-Chapter 5 Flashcards
Full PPE for structural FF include
per NFPA 1971
helmet hood jacket pants gloves boots
PPE
refers to all clothing and equipment used for FF protection.
personal protective ensemble.
PPE required by NFPA 1500 include
eye protection
hearing protection
SCBA
PASS
According to NFPA 1581, protective clothing that has been retired may only be used for ____
training that does not involve fire.
FFs should wear eye protection that meets ______
ANSI Std. Z87.1
Practice for occupational and Educational Eye and Face Protection
Protective Coats have 3 layers
outer shell
moisture barrier
thermal barrier
Structural PPE provides ____ CBRNE protection
no
DRD
drag rescue device.
built-in harness and loop at the back of the neck.
NFPA 1977
Std. on PPE for Wildland FF
FF should never wear clothing made of ______, such as ______ , when fighting a fire.
synthetic materials
polyester and nylon
NFPA 1975
Std. on Station/Work Uniforms
According to NFPA 1975, no garment components will ignite, melt, drip, or separate when exposed to ______ heat for ____ minutes.
500 degree F
5
Do not dry PPEs in direct sunlight. _______ can degrade the fabric and reduce its protection.
ultraviolet light
NFPA 1581
Std. on FD Infection Control Program
IDLH
any atmosphere that poses an immediate hazard to life or produces immediate, irreversible, debilitating effects on health.
4 common respiratory hazards associated with fire and other energencies
o2 deficiency
toxic atmospheres
superheated gases
smoke(products of combustion)
6 places where it might be o2 deficient
below-grade locations chemical storage tanks grain bins silos other confined spaces where CO2 has been discharged
Physiological Effects of O2 %
21 - none(normal O2 %) 17 - some loss of muscular coordination/increase in RR 12 - dizziness/headache/rapid fatigue 9 - unconsciousness 6 - death within a few minutes
Inhaling heated gases can cause _____ . the tissue damage is ______ and prompt _______ is needed.
pulmonary edema (due to serious decrease in BP and failure if the circulatory system)
not immediately reversible
medical treatment
4 factors that affect the type and amount of toxic gases released at a fire
nature of the combustible
rate of heating
o2 concentration
temp. of the evolved gases
Pocket Guide to Chemical Hazards
produced by NIOSH
lists IDLH concentrations of common fire gases
Which gas causes more fireground deaths than any other toxic product of combustion?
CO
The more inefficient the burning, the _____ the quantity of CO
greater
CO2
colorless/odorless
IDLH at 40000ppm
free burning
CO
colorless/odorless
IDLH at 1200ppm
incomplete combustion
HCl - hydrogen chloride
colorless to slightly yellow
pungent odor
IDLH at 50ppm
burning plastics
HCN
colorless/bitter almond odor
IDLH at 50ppm
burning of wool/nylon/polyurethane foam/rubber
NO2
reddish brown/acrid odor
IDLH at 20ppm
grain bins/silos/pyroxylin plastics decomposing
COCl2
phosgene
colorless/odor of musty hay
IDLH at 2ppm
when refrigerants contact flame
generally, the _____ the smoke, the higher the CO levels
darker
It takes _____ for COHb to dissipate from the bloodstream.
years
COHb
carboxyhemoglobin
hemoglobin saturated with CO
the most important element in immediate care for CO poisoning is _______
pure O2
3 toxic refrigerants
freon
ammonia
sulfur dioxide
DOT
dept. of transportation
Hazardous Material
any substance which may pose an unreasonable risk to health and safety of operating or emergency personnel, the public, and/or the environment if it is not properly controlled during handling, storage, manufacture, processing, packaging, use, disposal, and transportation.
etiologic agent
living micro-organism that can cause human disease.
Both NFPA 1500 and 29 CFR 1910.134 allow FF to wear ______ while using SCBA if the FF has demonstrated at least 6 months of use without any problems.
soft contact lenses
6 limitations to SCBA air supply
physical condition of user degree of exertion emotional stability condition of SCBA initial pressure of SCBA training/experience of user
low air pressure alarms normally activate at _____ % of full pressure.
25(about 5 minutes air supply)
Point of no return
when your first FF reaches 50% air supply
APRs
air-purifying respirators.
also known as filter masks.
some have canisters or cartridges.
must b certified for the specific hazard they are used to protect against.
open-circuit SCBA
uses compressed air
exhaled air is vented outside
closed-circuit SCBA
uses compressed O2
exhaled air remains within the system and is re-used.
MSHA
mine safety and health administration
(SCBA)During inhalation, a pressure differential is created. the diaphragm moves inward allowing low-pressure air into the mask. the diaphragm is held open by ______ . Exhalation closes the diaphragm.
positive pressure
Remote pressure gauges should be within ______ of the main cylinder gauge.
100 psi
SCBAs should be at least ____ filled.
90%
NFPA 1981
Std. on Open-Circuit SCBA for Emergency Services
RIC/UAC
rapid intervention crew/ universal air connection
must be on all new SCBAs
HUD
heads up display
displays cylinder pressure
required on all new SCBA
EBSS
emergency breathing support system
5-10 minute emergency egress cylinder
“hip air”
part of SAR systems
SAR systems enable FF to travel up to _____ .
300’
Closed-Circuit SCBA are available in durations of _____ and usually weigh ____ than open-circuit SCBAs because of their ______ .
30 minutes to 4 hr
less
smaller cylinders
NIST
national institute of standards and technology
According to NIST, PASS devices may have a significantly reduced alarm signal at temps as low as _____ .
300 degrees F
Retrain ____ a year with PASS devices.
2x
NFPA 1404
Std. on FS Respiratory Protection Training
Positive pressure can be checked by ______ .
placing two fingers under the mask seal and feeling for air moving past your fingers
Hydrostatic Test
uses water under pressure to check the integrity of pressure containers.
Air cylinders must have the _____ stamped on them and they must be hydrostatically tested every _____ .
date of manufacture
5 years for steel or aluminum
3 years for composite
SCBA are required to be inspected ______
weekly/monthly/annually/after each use
3 safety precautions for filling SCBA cylinders
place in a shielded fill station
fill slowly to prevent overheating
completely fill but don’t over pressurize
Cascade System
series of at least 3, 300 cubic foot cylinders used to fill SCBAs
3 conditions that must be met to allow SCBA(with RIC/UACs) refilling on a FF’s back
NIOSH approved fill options are used.
procedures in place to limit personnel exposure and provide adequate inspection and member safety.
imminent life threatening situation requiring immediate action.
all FF certified to wear SCBA must be fit tested ______ .
annually
In an IDLH atmosphere, FF must remain in _______ in addition to radio contact.
physical, voice, or visual contact
If necessary to use the bypass valve, u must ______ .
intermittently open and close the bypass valve to allow air into the mask.
Follow the ______ of the hose line to exit.
male couplings
PAR
personnel accountability report
roll call of all personnel assigned to an incident. the supervisor of each unit reports the status of his personnel to the IC.
11 things to do if lost or disoriented in a burning structure
declare a mayday. activate your PASS. stop, relax, slow breathing, think. hold breath and listen. follow hose line if possible. crawl in a straight line. make all the same turns. call for directions, call out, make noise. break window/breach wall. if nearing unconsciousness, remain near a wall and aim flashlight toward ceiling. use rope if possible.
Tag Line
non load-bearing rope attached to an object/person to help steer it or act as a safety line.
Salvage Cover
waterproof cover used to protect furniture and building areas from heat, smoke, and water. can be used for ground cover to place equipment.
When should FF check their air supply?
at beginning of shift when donning, prior to entry into IDLH while working every 5-10 min during egress every 2-3 min when refilling cylinder when replacing cylinder
8 guidelines for helmet care
remove dirt/soot from shell.
remove chemicals/oils/petroleum products ASAP.
replace helmets that do not fit.
replace damaged helmets.
replace damaged face shields.
inspect suspension systems.
consult manufacturer if needs repainting.
remove from service if comes in contact with hydraulic oil.
4 SCBA assemblies
cylinder
harness
regulator
face piece
5 checks before donning SCBA
air supply (90%). gauges within 100psi. fully extended straps. operate all valves to ensure proper function and that they are in the correct position. check PASS
5 pre-donning checks plus these 3 more checks for daily/weekly inspections include ______ .
check all hose connections
check face piece
check low pressure alarm
Always bleed lines before disconnecting because it might cause ______ if forgotten.
O-ring damage
Remember to quickly _____ to clear debris prior to connecting cylinder to 1st stage regulator.
open and close the cylinder valve