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Photoelectric
Photoelectric Smoke Alarms employ a light emitting diode (LED) to
send a beam of light across a chamber. When smoke enters the chamber, the
particles scatter the photons. A photocell installed at an angle to the diode
senses the light, and subsequently sets off the alarm. In UL tests,
photoelectric alarms have performed more effectively with slow burning,
smoldering types of fires that can burn for hours before bursting into flame
and emit large smoke particles. These types of fires include cigarettes
burning in furnishings and bedding.
Ionization
Ionization Smoke Alarms contain a minuscule amount of a material
called Americium 241, which emits alpha particles that collide with the oxygen
and nitrogen in the air and to create ions. These ions conduct electricity and
allow a steady electrical current to flow between two electrodes. Smoke enters
the detection chamber and the alpha particles are absorbed by the larger smoke
particles, causing a drop in the current, and the alarm is triggered. In UL
tests, ionization alarms have performed more effectively with fast, flaming
fires which rapidly consume combustibles and spread quickly emitting tiny
particles. These types of fires include flammable liquids, loosely packed
light combustibles, and kitchen grease.
Heat Detectors
Heat detectors warn of fire when the temperature in the area around
the smoke detector reaches a certain level. Heat detectors do not notice
smoke. Heat detector could be valuable additional protection in areas where smoke detectors are not recommended are not recommended. They are not recommended for the use in bedrooms or sleeping areas.
Carbon Monoxide
Carbon monoxide is a colorless, odorless, tasteless, toxic gas that
has the molecular formula CO. The molecule consists of a carbon atom that is
triply bonded to an oxygen atom. Carbon Monoxide is produced by the incomplete
combustion of the fossil fuels - gas, oil, coal and wood used in boilers,
engines, oil burners, gas fires, water heaters, solid fuel appliances and open
fires. Dangerous amounts of CO can accumulate when as a result of poor
installation, poor maintenance or failure or damage to an appliance in
service, the fuel is not burned properly, or when rooms are poorly ventilated
and the Carbon Monoxide is unable to escape.
UL Listed
Underwriters Laboratories, Inc. is a the trusted third party source
across the globe for product compliance. Benefiting a range of customers -
from manufacturers and retailers to consumers and regulating bodies. UL is the
standard by which everthing in this industry is judged.
UL Ratings for Fire Extinguisher Explanation
Asbestos Exposure and Fire Safety
Read more on Asbestos Exposure
Fire Extinguisher Agents
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A Quick Guide to Fire Extinguishing Agents
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Class of Fire
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AGENT
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A
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B
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C
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K
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Multi-Purpose
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Regular
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Purple K
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Carbon Dioxide
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Wet Chemical
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Halotron
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Water
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Foam
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Fire Classifications
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Fire Classifications
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A
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B
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C
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K
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Wood
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Flamable Liquids
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Electrical Equipment
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Commercial Kitchens
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Paper
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Gases
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Wiring
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Cloth
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Solvents
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Controls
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Rubber
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Oil/Gasoline
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Motors
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Trash
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Paint
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Data Processing
Panels
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Plastics
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Lacquers
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Appliances
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Tar
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Synthetics
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