Safety Symbol
(ANSI)
Safety Symbol
(ISO)
General Description of Symbol
High Pressure Molten Material
This symbol indicates the presence of a high pressure
molten material hazard that could cause death or severe
burns.
Lockout/Tagout
This symbol identies an energy source (electrical, hydraulic
or pneumatic) that must be de-energized before
maintenance is performed.
Crushing and/or Impact Points
This symbol indicates a crushing and/or impact area that
could cause serious crushing injury.
High Pressure
This symbol indicates a heated water, steam or gas hazard
that could cause severe injury.
High Pressure Accumulator
This symbol indicates the sudden release of high pressure
gas or oil could cause death or serious injury.
Hot Surfaces
This symbol identies the presence of exposed hot surfaces
that could cause serious burn injuries.
Slip, Trip or Fall Hazard
This symbol indicates a slip, trip or fall hazard that could
cause injury.
Do Not Step
This symbol identies a location that should not be used as a
step because it may be a slip, trip or fall hazard and could
cause injury.
Crushing and/or Shearing Hazard
This symbol indicates the presence of a crushing and/or
shearing hazard at the rotating screw that could cause
serious injury.
v 2.2 — March 2021 Unify Manifold System
22 Safety Signs