Meaning Of Safety Signal Words; Safety - Task Force Tips ThunderFog Series Manual

1.0 MEANING OF SAFETY SIGNAL WORDS

A safety related message is identifi ed by a safety alert symbol and a signal word to indicate the level of risk involved with a particular
hazard. Per ANSI Z535.6, the defi nitions of the four signal words are as follows:
DANGER
WARNING
CAUTION
NOTICE

2.0 SAFETY

DANGER
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
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DANGER indicates a hazardous situation which, if not avoided, will result in death or serious
injury.
WARNING indicates a hazardous situation which, if not avoided, could result in death or serious
injury.
CAUTION indicates a potentially hazardous situation which, if not avoided, could result in minor
or moderate injury.
NOTICE is used to address practices not related to physical injury.
An inadequate supply of pressure and/or fl ow will cause an ineff ective stream and can result
in injury or death. Choose operating conditions to deliver adequate fi re suppression. See fl ow
graphs.
This equipment is intended for use by trained personnel for fi refi ghting. Use of this equipment for
other purposes may involve hazards not addressed by this manual. Seek appropriate guidance
and training to reduce risk of injury.
Equipment may be damaged if frozen while containing signifi cant amounts of water. Such
damage may be diffi cult to detect visually. Subsequent pressurization can lead to injury or
death. Any time the equipment is subject to possible damage due to freezing, it must be tested
and approved for use by qualifi ed personnel before being considered safe for use.
Failure to restrain nozzle reaction can cause fi refi ghter injury from loss of footing and/or stream
protection. Opening and closing other nozzles, hose line kinks, changes in pump settings, nozzle
pattern, or fl ushing will cause changes in nozzle reaction. Nozzle operator must always be
prepared in the event of these changes.
If nozzle gets out of control while fl owing, violent whipping motion will occur. Serious injury or
death could result. Retreat from the nozzle immediately. Do not attempt to regain control of
nozzle while fl owing.
Application of water or foam solutions on energized electrical equipment could cause
electrocution. Serious injury or death could result. Assume circuits are energized until confi rmed
to be de-energized. Do not apply water or foam to energized electrical equipment.
The stream exiting a nozzle is powerful and capable of causing injury and property damage.
Make sure the nozzle is securely attached and pointing in a safe direction before water is turned
on. Do not direct water stream to cause injury or damage to persons or property.
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LKF-100 January 22, 2020 Rev20