Explosive: Any chemical compound, mixture, or device, the primary or common purpose of which is to function by explosion, i.e., with substantially instantaneous release of gas and heat, unless such compound, mixture, or device is otherwise specifically classified by the U.S. Department of Transportation.
Flammables: Flammable materials can vaporize and form flammable mixtures with air when in open containers, when leaks occur or when heated, or may become flammable with certain catalysts.
Reactives: Reactive properties and physical conditions of a single chemical or mixture that have the potential to generate heat, energy, and gaseous by-products that have the potential to do harm.
Organic Peroxides: An organic peroxide may be considered a derivative of hydrogen peroxide, where one or both of the hydrogen atoms have been replaced by organic radicals. The term also includes organic peroxide formulations (mixtures). Such substances and mixtures may: be liable to explosive decomposition; burn rapidly; be sensitive to impact or friction; react dangerously with other substances. Peroxides can occur in virtually any kind of organic chemical, however, certain chemicals are particularly prone to peroxide formation and pose special hazards. May also be light sensitive.
Emits Flammable Gas: Substances and mixtures which, in contact with water, emit flammable gases includes those that will emit flammable gases due to moisture in the air.
Corrosives: A corrosive material is a highly reactive substance that causes obvious damage to living tissue or to metal. Corrosives act either directly, by chemically destroying the part (oxidation), or indirectly by causing inflammation.
Oxidizers: An oxidizer in itself may not necessarily be combustible, may, generally by yielding oxygen, cause or contribute to the combustion of other material.
Gasses Under Pressure: Compressed gases can be toxic, flammable, oxidizing, corrosive, inert or a combination of hazards. In addition to the chemical hazards, compressed gases may be under a great deal of pressure.
Acute Toxicity: Acute toxicity describes the adverse effects resulting from a single exposure to a substance.
Skin, Respiratory & Eye:
Chronic Health Hazards:
Sharp Objects: The most common lab injuries come from contact with sharp equipment, slips, trips, falling objects, broken glass, etc.
Electrical Hazards: Electrical hazards include use of high-voltage equipment, wet environments, harsh environments that may deteriorate insulation, and automatically starting equipment
Mechanical Hazards: Some equipment has moving parts that may present pinching or crushing hazards, may catch loose clothing, or may vibrate or move while running
High/Low Temperature Surfaces: Fires, hot plates, extreme cold, and hot equipment are common in labs and may cause burns without proper precautions
UV Light: UV and laser light may cause burns or eye damage
Flying Particles: Flying particles and chemicals may occur frequently and without warning from various lab equipment and operations
Containers Under High Vacuum/Pressure: Containers placed under high vacuum or pressure can become hazardous in certain circumstances
Electric and Magnetic Fields: Electric and magnetic fields (EMFs) are invisible lines of force associated with the use of high-voltage electric power. Health effects are uncertain, but individuals with pacemakers or metallic implants should take precautions
Ionizing and Non-Ionizing Radiation: Radioactive sources may be present in certain analytical equipment
Heavy Objects: Certain tasks in the lab may involve heavy lifting or repetitive motions that, over time, may lead to musculoskeletal disorders
Ergonomic Hazards: Certain tasks in the lab may involve heavy lifting or repetitive motions that, over time, may lead to musculoskeletal disorders
Respiratory Hazards: In situations where engineering controls are not sufficient to provide a safe atmosphere, the use of respirators may be necessary
Hearing Damage: Exposure to high levels of noise can cause permanent hearing loss. Neither surgery nor a hearing aid can help correct this type of hearing loss. Short term exposure to loud noise can also cause a temporary change in hearing (your ears may feel stuffed up) or a ringing in your ears (tinnitus).
Slip & Fall
Confined Spaces: While rare in lab settings, confined spaces hazards may occur in certain circumstances. A confined space is a space that 1) is large enough for an employee to enter and perform assigned work, 2) has a limited or restricted means of entry or exit, and 3) is not designed for continuous employee occupancy
Elevated Platforms: Fall protection may be necessary under certain circumstances
Temperature Extremes: Work in refrigerated environments or field work may present certain safety hazards from exposure to temperature extremes