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Apr 15, 2024 · 1. Yellow: Yellow signs indicate a general warning or caution that is not temporary. These signs are typically diamond-shaped with a yellow background and a black border. They warn drivers about potential hazards, obstacles, or conditions requiring special attention. Examples include two-way traffic, pedestrian crossings, merging lanes, and ...
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Sep 12, 2020 · Workers Ahead Signs. The “workers ahead” sign is among the most common road indicators and it urges all motorists passing by to exercise caution. Some workers may be too focused on their tasks to notice vehicles zooming by. As the driver, you have to be the one who approaches more carefully. The “workers ahead” sign is also meant to ...
Mar 22, 2023 · Caution Signs. Use Caution Signs offered by MySafetySign for hazards that would cause minor or moderate injuries or property damage. • Find both OSHA and ANSI compliant Caution Signs. Trained employees perceive and understand a yellow and black sign as “Caution Sign”. • Browse through our extensive selection.
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Ionizing Radiation
This symbol signals the presence of ionizing radiation. This type of radiation is a significant hazard that has the potential to change the structure of molecules (including DNA) in such a way that it could disrupt normal cell functioning. In the right doses, ionizing radiation can cause germ cell damage, fetal damage, radiation sickness, or cancer. You’re already familiar with this radiation symbol – if only because you’ve seen it so often in movies. But it’s not common in most worksites. It...
Emergency Shower
This sign marks the location of the emergency shower, something workers should be aware of when handling certain hazardous materials. These emergency showers aren’t just any spot where hazardous materials can be washed off. They are purpose-built showers that must be tested at regular intervals (depending on your jurisdiction, this can be pretty specific), must deliver a specified rate of flow for a minimum period, and must deliver tepid waterinstead of cold. In many workplaces, these showers...
Biohazard
This symbol indicates the presence of biologically harmful substances, such as infection agents, live viruses, bacteria, or mold. The biohazard symbol is probably seen on a lot more t-shirts than worksites. But in certain applications (labs, pharmaceuticals, and medical facilities in particular), it continues to be an important health and safety warning. The biohazard symbol is used in WHMISbut is not an official GHS pictogram. Still, it remains prevalent because it is instantly recognizable...
Live Electrical Equipment
This symbol is displayed where there is powered electrical equipment that could deliver a shock. A similar symbol with a “flash” to the side indicates that the equipment also poses an arc flashrisk. This basic symbol is usually accompanied by text, but knowing its meaning is still important – especially since the text is typically relevant in only one language.
High Voltage or Shock Hazard
Sometimes considered interchangeable with the basic lighting bolt symbol, this one communicates a more specific hazard. Namely, that the equipment can electrocute you. You’re likely to see this type of sign around transformers, power plants, power panels, and other high voltage electricity-channelling equipment. No one should enter into areas with this symbol unless they have been authorized and trained to do so.
Connect Earth Terminal to Ground
The ground symbol is used to indicate that a piece of equipment needs to be connected to “ground” or “earth.” This usually involves driving a ground rod to a suitable depth where the electricity can safely be discharged, rather than introducing current into the surrounding materials, equipment, or workers.
No Smoking
This one might seem almost too obvious to include because it is so ubiquitous. It isn’t quite as prevalent as it once was, however. That’s because it used to be posted to denote the only places where smoking wasn’t permitted. Now, it’s largely been flipped so that smoking is only permitted in specially designated areas where second-hand smoke is unlikely to reach non-smokers. Although smoking is generally not permitted in workplaces and public areas, you might still see this sign posted where...
Fire Exit / Evacuation Route
This sign points the way out of a building or facility in the event of an emergency – which is not always the same way you came in. These signs are so commonplace that we barely notice them in most places, but they become critical when the fire alarm goes off and you have to calmly make your way to the designated exit. Elevators disable when there is a fire, so these signs also discourage people from wasting time going to them instead of heading for the stairwell. Emergency evacuation signs a...
Hot Surface
This symbol is often posted near cooktops, ovens, and other heat-generating appliances. It’s also useful on machinery casings, piping and conduits, and other surfaces that may become hot as a byproduct of their operation. The signage warns workers to avoid getting burned by coming into contact with the surface, but also that the surface is not a place to leave a jacket, stack of boxes, or anything that could cause a fire.
No Ignition Sources
This symbol depicting a lit match is usually posted alongside No Smoking signs (most commonly at gas stations). It indicates that any ignition sourcehas the potential to cause a fire. It may not be the most straightforward symbol, since it doesn’t apply only to matches, but to any source of ignition. Still, it is widely used and worth knowing.
Gas Cylinder Storage Area
These signs don’t have a standard style or dimensions. There are numerous versions of this symbol and they don’t always mean exactly the same thing. This symbol is generally used where compressed gas bottles (such as oxygen and acetylene) are stored, which requires several safety considerations. At the very least, you should be using a spotter when operating vehicles around an outdoor storage area where this symbol is posted.
Respirator Required
This symbol indicates that no work can take place in the area without the use of a respirator. You might see it, for example, on vessels that have the potential to expose workers to gases and vapors, develop an oxygen-deficient atmosphere, or house respirable particles like silica or asbestos. This is common in confined spaces, where isolation can’t be completely assured and gases could be introduced.
Chemical Weapon
This symbol is used where either the precursor chemical or the full product is made or stored. Chances are, you’ll never actually see this one in your workplace. Not unless you work for a weapons manufacturer or on a military installation. Even then, only in certain countries – the development, manufacture, and retention of these agents is banned in over 190 states through the Chemical Weapons Convention.
Poison
This classic skull and crossbones design denotes the presence of poison or toxic materials. It’s the progenitor of the modern GHS symbol for acute toxicity, but is still used on some consumer products that don’t fall under workplace chemical regulations.
Noxious / Irritant
This simple X indicates the presence of irritating materials. This symbol is more commonly used in Europe. It is particularly useful where the irritant isn’t completely contained (in a paint booth, for example) and anyone entering the area may be exposed to it.
Stop / No Admittance / Authorized Personnel Only
This ISO symbol acts as a general caution not to proceed any further. This type of sign is typically posted at the entrance to restricted areas (whether for safety or security reasons), but can also be used as a reminder for those who have clearance that they are entering an area with special safety observances (such as PPE or entrance logs).
Non-Ionizing Radiation
Non-ionizing radiation is generally considered harmless to humans, but you might still see this warning symbol around equipment that operates over communications protocols, such as transmitters, routers, and cellular antennae. Under some circumstances, these devices can interfere with one another when using shared bands, affecting the performance of electronics.
Laser
This placard is displayed wherever there are lasers that produce significant heat, could harm workers trying to peek inside the enclosures, or could cause harm when reflecting off other surfaces. Lasers are used in numerous applications, from measurement, infrared sensing, guidance, cleaning, and design, all the way to industrial metal fabrication. As they are extremely focused forms of light, they can be harmful to humans, especially to the eyes.
They will be a combination of red, black and white with the word DANGER across the top. Orange warning signs may be used to draw attention to a less serious or less immediate threat. Caution signs denote the risk of a minor or moderate injury. They have a yellow background with black upper panel, borders and lettering.
Warning signs are a type of hazard sign and highlight risks that are likely to cause injury or could result in death. Warning signs use a bright yellow triangle with a black border to effectively draw attention. They will also use an exclamation mark, black writing and - sometimes - an accompanying illustration.
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There are five different types of signs recognized by the ANSI Z535 series of standards: danger signs, warning signs, caution signs, notice signs, and safety instruction signs. The first three are considered hazard communication signs and the last two informational. By becoming familiar with the Z535 standard, a facility will be able to ...
