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Potential for harm
- Recognizing the existence of hazards is central to completing a sufficient analysis. Simply stated, a hazard is a potential for harm. If left uncontrolled, a hazard could result in an injury, illness, loss of property, or damage to the environment.
institute.acs.org/acs-center/lab-safety/hazard-assessment/tools/common-hazards.html
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Key points. When working in a laboratory, follow the lab rules. Hazard symbols give information about chemicals and materials. When working in a lab, take safety precautions. Why is...
How can you work safely in the lab? What are the various steps needed in order to do so? How to spot risks, hazards and understand hazard symbols.
Hazard symbols warn about the dangers of a substance. Risk is the chance that a hazard will cause harm. Risk assessments describe how to reduce the risk of harm when carrying out an experiment.
GHS classifies substances by the physical, health, and environmental hazards that they pose, and provides signal words (e.g., Danger), hazard statements (e.g., may cause fire or explosion), and standard pictogram-based labels to indicate the hazards and their severity.
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- General Warning
- Biohazard
- Explosive Material Hazard
- Flammable Material
- Toxic Material
- Non-Ionising Radiation
- Ionising Radiation
- Low Temperature
- UV Light Hazard
At a glance: This is one of the most common signs you’re likely to see in a lab. The symbol denotes a General Warning and acts as a broad reminder that the area you’re working in is likely to contain hazards and risksand you should work accordingly. You’re likely to find this sign on equipment, cupboards and even doorways. Stay safe: Every time you...
At a glance: The equipment or receptacles that you’re dealing with have likely been in contact with biohazardous materials and therefore run the risk of being contaminated. If a lab is working with infectious agents, this sign should mark the area accordingly. Stay Safe: The rules for staying safe when working with biohazardous materialsare three-f...
At a glance: This symbol indicates that chemicals with explosive properties are present in the area. This could include unstable explosives that cause dangerous chemical reactions. It could also refer to self-reactive substances and chemical mixtures that can cause explosions in the absence of air. Stay Safe: Be sure to have a fireand explosion pol...
At a glance: This sign commonly occurs in labs and suggests that flammable materials are likely to be present. Stay Safe: Ensure that any ignitable substances are clearly labelled with the appropriate signage. These types of materials include solvents and even harsh cleaning materials. Be sure to keep such chemicals away from heat, open flames and ...
At a glance: You’ll find this sign in areas where substances are held that could prove harmful to humans if they are inhaled, ingested or they come into contact with skin. Stay Safe: The effects of such substances coming into contact with human tissue can vary depending on the material and its concentration so be sure to have protocols and risk ass...
At a glance: You’ll find this symbol in areas where non-ionising radiation is present. This includes the full spectrum of ultraviolet, visible light, infrared, microwave, radio frequency and extremely low frequencies. Stay Safe: All sources of non-ionising radiation should be clearly marked. Exposure to non-ionising radiation can be limited through...
At a glance: This symbol denotes that ionising radiation (in other words, radiation that has enough energy to liberate electrons from atoms or molecules and ionise them) is present. You’ll likely see the symbol where x-ray equipment, medical beam canons and particle accelerators are found. Stay Safe: Protective clothing must be worn, and the area s...
At a glance: The symbol denotes low temperature or cryogenic hazards. These substances are often below freezing point and stored with chemicals such as liquid nitrogen. Stay Safe: When dealing with equipment such as this, it is vital that personal protective equipment is worn. This includes but is not limited to thick rubber gloves that reach to th...
At a glance: This sign indicates areas where ultraviolet light is present. Stay Safe:Exposure to ultraviolet light can range from ulcerations on the skin to skin cancer. Be sure to wear appropriate PPE and avoid the area where possible.
A hazard is something (eg an object, a property of a substance, a phenomenon or an activity) that can cause adverse effects. For example: Water on a staircase is a hazard, because you could...
May 18, 2024 · Key rules include following all instructions carefully, knowing the location and proper use of safety equipment, and dressing appropriately for lab work. These precautions help ensure a safer environment and minimize the risk of accidents.
