©Copyright Task Force Tips LLC 2011-2018 LIG-010 May 29, 2018 Rev05
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1.0 MEANING OF SAFETY SIGNAL WORDS
A safety related message is identied by a safety alert symbol and a signal word to indicate the level of risk involved with a particular
hazard. Per ANSI standard Z535.6-2011, the denitions of the four signal words are as follows:
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 CAUTION indicates a potentially hazardous situation which, if not avoided, could result in minor
or moderate injury.
NOTICE NOTICE is used to address practices not related to physical injury.
SAFETY INSTRUCTIONS (or equivalent) signs indicate specic safety-related instructions of procedures.
2.0 SAFETY
An inadequate supply of nozzle pressure and/or ow will cause an ineective stream and can
result in injury, death, or loss of property. See ow graphs or call 800-348-2686 for assistance.
WARNING The nozzle may be damaged if frozen while containing signicant amounts of water. Such
damage may be dicult to detect visually and can lead to possible injury or death. Any time the
nozzle is subject to possible damage due to freezing, it must be tested by qualied personnel
before being considered safe for use.
WARNING This equipment is intended for use by trained personnel for reghting. Their use for other
purposes may involve hazards not addressed by this manual. Seek appropriate guidance and
training to reduce risk of injury.
Failure to restrain nozzle reaction can cause reghter injury from loss of footing and/or stream
protection. Nozzle reaction will vary as supply conditions change: such as opening or closing
other nozzles, hose line kinks, changes in pump settings, etc. Changes in spray pattern or
ushing will also aect nozzle reaction. The nozzle operator must always be prepared in the
event of these changes.
WARNING If nozzle gets out of control or away from operator, retreat from nozzle immediately. Do not
attempt to regain control of nozzle while owing water. Injury from whipping can occur.
Water is a conductor of electricity. Application of water on high voltage equipment can cause
injury or death by electrocution. The amount of current that may be carried back to the nozzle
will depend on the following factors:
• Voltage of the line or equipment
• Distance from the nozzle to the line or equipment
• Size of the stream
• Whether the stream is solid or broken
• Purity of the water1
1 The Fire Fighter and Electrical Equipment, The University of Michigan Extension Service, Fourth Printing 1983. Page 47
CAUTION Fire streams are capable of injury and damage. Do not direct water stream to cause injury or
damage to persons or property.
