ch3 Flashcards
The pressure vessel or vessels that are an integral part of the SCBA and that
contain the breathing gas supply; can be configured as a single cylinder or
other pressure vessel or as multiple cylinders or pressure vessels. (NFPA 1981)
Air cylinder
The hose through which air flows, either within an SCBA or from an outside
source to a supplied air respirator.
Air line
A respirator that removes specific air contaminants by passing ambient air
through one or more air purification components. (NFPA 1984)
Air-purifying respirator
A respirator that supplies the respirator user with breathing air from a source
independent of the ambient atmosphere and includes self-contained breathing
apparatus (SCBA) and supplied air respirators (SAR). (NFPA 1981)
Atmosphere-supplying respirator
A cancer-causing substance that is identified in one of several published lists,
including, but not limited to, NIOSH Pocket Guide to Chemical Hazards,
Hazardous Chemicals Desk Reference, and the ACGIH 2007 TLVs and BEls. (NFPA
1851)
Carcinogen
A method of piping air tanks together to allow air to be supplied to the SCBA fill
station using a progressive selection of tanks, each with a higher pressure level.
(NFPA 1901)
Cascade system
An SCBA designed to recycle the user’s exhaled air. This system removes carbon
dioxide and generates fresh oxygen.
Closed-circuit breathing apparatus
A device used for increasing the pressure and density of a gas. (NFPA 853)
Compressor
To take off an item of clothing or equipment.
Doff
To put on an item of clothing or equipment.
Don
A feature that automatically provides a backup method for air to be supplied to
the regulator of an SCBA if the primary passage malfunctions.
Dual-path pressure reducer
A device on an SCBA that allows users to share their available air supply in an
emergency situation. (NFPA 1981)
Emergency breathing safety systems
A warning device on an SCBA that alerts the user that the reserved air supply is
being utilized. (NFPA 1981)
End-of-service-time-indicator
Describes both full, that cover the nose, mouth, and eyes, and half, that cover
the nose and mouth. (NFPA 1404)
Face piece
A protective device commonly intended to shield the wearer’s face, or portions
thereof, in addition to the eyes from certain hazards, depending on the type.
(NFPA 1500)
Face shield
Protective head covering worn by fire fighters to protect the head from falling
objects, blunt trauma, and heat.
Fire helmet
A small, portable light carried by fire fighters to improve visibility at
emergency scenes; it is often powered by rechargeable batteries.
Hand light
Visual display of information and system conditions status that is visible to the
wearer. (NFPA 1981)
Heads-up display
A test performed by filling pressure-containing components completely with water or other incompressible fluid while expelling all contained air,
closing or capping all open ports of the pressure-containing components,
and then raising and maintaining the contained pressure to pressurize the pressure-containing
components to a prescribed value through an externally supplied pressure-
generating device. (NFPA 1901)
Hydrostatic testing
Any condition that would pose an immediate or delayed threat to life, cause
irreversible adverse health effects, or interfere with an individual’s ability to
escape unaided from a hazardous environment. (NFPA 1670)
Immediately dangerous to life and health
Electronic semiconductors that emit a single-color light when activated. They
are used for operational displays in SCBA.
Light-emitting diodes
The U.S. federal agency responsible for research and development on
occupational safety and health issues.
National Institute for Occupational Safety and Health
Inserts inside the face piece of an SCBA that fits over the user’s mouth and
nose.
Nose cups
The U.S. federal agency that regulates worker safety and, in some cases,
responder safety. It is part of the U.S. Department of Labor.
Occupational Safety and Health Administration
