Glossary Of Terms
- Technical Information
- Glossary of Terms
A
- Acetate
- Scratch-resistant material used for faceshields/goggles that protects against chemical splash and light impact.
- Action Level
- Exposure level (concentration of the material in air) at which certain OSHA regulations to protect employees take effect (CFR 1910.1001-1047). e.g., workplace air analysis, employee training, medical monitoring and record keeping. Exposure at or above the action level is termed occupational exposure.
- Acute Exposure
- A single exposure to a hazardous agent.
- ADA
- Americans with Disabilities Act. A civil rights law preventing discrimination against people with disabilities. This act can be found in the Code of Federal Regulations (36 CFR Part 1191).
- Administrative Controls
- A category of hazard control that uses administrative/ management involvement in order to minimize employee exposure to the hazard. Some examples are:
job enrichment, job rotation, work/rest schedules, work rates, periods of adjustment.
- American Conference of Governmental Industrial Hygienists (ACGIH)
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An organization of industrial hygiene professionals that develops occupational health
and safety programs. ACGIH develops and publishes recommended occupational exposure limits for hundreds of chemical substances and physical agents.
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ANSI (American National Standards Institute)
-
Private organization that provides consensus standards that many manufacturers need to comply with (some OSHA regulations require that products and procedures conform to specific ANSI standards).
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APR (Air Purifying Respirator)
-
This is a respirator that uses either a filter or an adsorbent media (charcoal cartridge) to keep contaminated atmospheres from entering the lungs.
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Arc Rating
-
The maximum incident energy resistance demonstrated by a material (or a layered system of materials) prior to break open, or at the onset of a second-degree skin burn. Arc rating is normally expressed in cal/cm2.
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Asphyxiant
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A vapour or gas that can either reduce the oxygen content in the air or interfere with the body’s ability to use oxygen. Exposure to an asphyxiant can result in unconsciousness or death due to being unable to breathe.
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ASTM (American Society for Testing and Materials)
-
Technical organization which develops standards on characteristics and performance of materials, products, systems, and services.
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ATPV (Arc Thermal Performance Value)
-
Expressed in cal/cm2. Also called “Arc Rating”.
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Attenuation
-
Reduction, expressed in decibels, of the sound intensity at a first location as compared with sound intensity at a second location. We use this term to help identify how much protection that a given hearing protection device is giving.
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Audiometric Testing
-
Tests that are conducted to determine the hearing ability of a person. These tests may be used to establish an employee’s baseline hearing, to identify any subsequent hearing loss, and to monitor the effectiveness of noise controls.
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B
- Barrier Cream
- A cream designed to protect the hands and other parts of the skin from exposure to harmful agents. Barrier cream is also known as protective hand cream.
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Biohazard
-
Infectious agents presenting a potential risk to a person’s well-being.
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Biological Agent
-
Any living organism (for example, virus or bacteria) that affects the body, a part of the body, or any of its functions. The effects may be beneficial or harmful.
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Biological Monitoring
-
The use of medical tests to determine whether a person has been or is being exposed to a substance.
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Boiling Point
-
The temperature at which a liquid changes to a vapor.
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Bonding
- The use of low-resistance material to connect two or more conductive objects that would likely undergo a build-up of static electricity. Bonding prevents the unwanted release of electrical energy, such as sparks. e.g., transferring of one flammable liquid from one container to another can release electrical energy if it is not bonded.
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Breathing Zone
-
The area surrounding the worker’s head. The make-up of air in this area is thought to be representative of the air that is actually breathed in by the worker.
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Bloodborne Pathogen
-
Virus or infection, such as Hepatitis B or HIV, that is present in blood and can be transmitted through blood or bodily secretions.
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Body Harness
-
Distributes the arresting forces over the thighs, shoulders, and pelvis, and can be attached to a lanyard, lifeline, or deceleration device.
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Bonding
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Interconnecting of two objects with clamps and bare wire. Helps prevent static sparks that could ignite flammable materials.
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Bound Seam
-
Clean-finished chainstitch binding, which encapsulates raw edges of fabric (primarily on suits). For intermediate levels of protection.
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Breakthrough Time
-
Time from initial chemical contact to detection.
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Butyl
-
Synthetic rubber which provides the highest permeation resistance to gases and water vapors. Does not offer the physical strength of natural rubber.
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C
- Carabiner
- Self-closing, self-locking steel connector used to attach to an anchorage point.
- Carcinogen
- A chemical, physical or biological agent that can cause cancer in humans or animals.
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Carpal Tunnel Syndrome
-
A common affliction caused by compression of the median nerve in the carpal tunnel. Asssociated with tingling, pain or numbness in the thumb and first three fingers.
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CBRN
-
Chemical, Biological, Radiological, Nuclear.
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CFM
-
Cubic Feet per Minute.
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CFR
-
Code of Federal Regulations. A codification of rules published in the Federal Register by the executive departments and agencies of the federal government. The code is divided into 50 Titles representing the broad areas subject to federal regulations.
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Chemical Agent
-
A chemical substance that affects the body, a part of the body, or any of its functions. The effects may be beneficial or harmful.
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Chronic Exposure
-
Repeated exposure to a hazardous agent.
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Combustible Liquid
- Burns at a flash point between 100°F and 200°F.
- Confined Space
- A space in which a hazardous gas, vapor, dust or fume may collect
or in which oxygen may be used up because of the construction of the space, its location, contents, or the work activity carried out in it. It is an area which is not designed for continuous human occupancy and has limited opening for entry, exits or ventilation.
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Contaminant
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An unwanted material (for example, radioactive, biological or chemical) that is likely to harm the quality of the working environment. The most common workplace contaminants are chemicals that may be present in the form of dusts, fumes, gases or vapors.
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Controls
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Measures designed to eliminate or reduce hazards or hazardous exposures.
Examples include: engineering controls, administrative controls, personal protective
equipment. Hazards can be controlled at the source, along the path to the worker, or
at the worker.
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Corrosive
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A substance that will burn the skin or eyes on contact.
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CSA
-
Canadian Standards Association. This group is very similar to ANSI.
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D
- dB (Decibel)
- Unit that expresses the relative intensity of sounds on a scale of 0 (least perceptible) to 130 (pain level).
- DC (Direct Current)
- Electric current that travels in one direction. Usually supplied by batteries or a transformer that changes a current from AC to DC.
- Degradation
- Change in physical properties due to erosion from chemicals.
- Dermatitis
- Inflammation of the skin. Symptoms of dermatitis may include: redness,
blisters, and cracks in the skin.
- Dexterity
- The ability to feel through gloves.
- Dielectric
- Material that doesn’t conduct or transfer a direct electric current.
- Direct Venting
- Series of holes on a goggle that allows direct air flow to the space behind the lenses. Shouldn’t be use for splash because these vents will allow fluid through.
- DOT
- Department of Transportation.
- Dust
- Fine particles of a solid that can remain suspended in air. The particle size of
a dust is larger than that of a fume. Dusts are produced by mechanical action, such as grinding. Some dusts may be harmful to an employee’s health.
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E
- EH
- Electrical Hazard.
- Electric Arc
- Electrical conduction through a gas in an applied electric field.
- Electrolytes
- Essential salts and minerals contained in bodily fluids.
- Emergency Plan
- Detailed procedures for responding to an emergency, such as a fire or explosion, a chemical spill, or an uncontrolled release of energy. An emergency plan is
necessary to keep order, and minimize the effects of the disaster.
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Engineering Controls
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A category of hazard control (for employee exposure) that uses physical/engineering methods to eliminate or minimize the hazard. Examples of engineering controls include: ventilation, isolation, elimination, enclosure, substitution and design of the workplace or equipment. This is the preferred method of protecting employees before resorting to personal protective equipment.
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EPA (Environmental Protection Agency)
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Federal agency with environmental protection, regulatory, and enforcement authority.
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Ergonomics
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An applied science that studies the interaction between people and the work environment. It focuses on matching the job to the worker.
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Evaporation
- The process by which a liquid, without reaching its boiling point, changes into a vapor and mixes with the air.
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Explosive
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A substance, mixture or compound that is capable of producing an explosion.
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Exposure Level
- Level or concentration of a physical or chemical hazard to which a person is exposed (most common for respiratory and noise hazards).
- Exposure Records
- The records kept by an employer, or company doctor or nurse
of an employee’s exposure to a hazardous material or physical agent in the workplace.
These records show the time, level and length of exposure for each substance or agent involved.
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F
- FDA (Food and Drug Administration)
- Responsible for ensuring that foods, drugs, biological products, medical devices, and cosmetics are safe, and accurately and informatively represented.
- Filter Holder
- Base plate that a prefilter would be placed on. Needed when not using a cartridge in conjunction with the prefilter. If using a cartridge then the cartridge will act as the “holder”.
- Filter Retainer
- Top piece that holds the prefilter onto a cartridge or filter holder.
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Fit Test
-
Required by OSHA. Must be satisfactorily completed before a respirator is worn in a contaminated area. See also Qualitative or Quantitative Fit Test.
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Flame Arrester
-
Screen found inside the spout of a safety can to prevent fire flashback to the can contents.
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Flame Resistant
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Made or treated to resist burning. Fabric self-extinguishes when the source of ignition is removed.
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Flammable Liquid
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A liquid with a flash point below 100°F, excluding gases.
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Flash Point
-
The lowest temperature at which a liquid will give off enough vapors to form a mixture that will burn if ignited. The lower the flash point, the higher the risk of fire.
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Flock Lined
-
Shredded fiber, usually cotton, applied to the inside surface of a glove. Helps absorb perspiration and aids in donning and doffing.
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FM (Factory Mutual)
-
Nationally recognized testing laboratory and approved service recognized by OSHA.
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Fog
-
Suspended droplets of a liquid that are produced by condensation or by the
breaking up of a liquid.
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Fume
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Solid particles of extremely small size, created when solid materials vaporize under high heat and then cool. Produced from operations such as welding, smelting, and pouring molten metal.
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G
- Gas
- A formless substance that expands to occupy the space of its container (for example, methane, acetylene).
- Gauntlet
- Glove cuff 4” or more in length which gets wider towards the end.
- GFCI (Ground Fault Circuit Interrupter)
- Device that protects people and equipment from ground faults or sudden equipment restarts after a power failure.
- Glare
- Bright light that interferes with a person’s ability to see. Glare causes discomfort and can lead to eyestrain and headaches.
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Grain Leather
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Smooth external side of the hide. Provides durability and dexterterity.
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Grounding
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Electrical connection of one or more conductive objects to the earth through the use of metal grounding rods or other devices.
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Guarding
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Use of any device or combination of devices designed to keep any part
of a worker’s body out of the danger zone of a machine during its operating cycle.
This usually involves guarding the point of operation, guarding power transmission components by fixed enclosures, and/or protecting the operator and nearby workers from flying fragments.
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H
- Hazard
- The potential of any machine, equipment, process, material (including biological and chemical) or physical factor that may cause harm to people, or damage to property or the environment.
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Hazardous Material
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Any substance that may produce adverse health and/or safety effects to people or the environment.
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Halogen
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Light bulb which is brighter than fluorescent and krypton.
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Hasp
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Lockout device designed to prevent accidental equipment start-up.
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Health and Safety Policy
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A policy is a statement of intent, and a commitment to plan for coordinated management action. A policy should provide a clear indication of a company’s health and safety objectives. This, in turn, will provide direction for the health and safety program.
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Health and Safety Program
- A systematic combination of activities, procedures, and facilities designed to ensure and maintain a safe and healthy workplace.
- Heat Exhaustion
- Overheating of the body. Heat exhaustion can happen when the body loses too much fluid (because of excessive sweating) or when conditions, such as physical activity in a hot environment, prevent sweat from evaporating into the air.
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Heat Stroke
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A potentially deadly condition in which over-exposure to a very hot environment breaks down the body’s ability to control its temperature and cool itself sufficiently.
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Hearing Conservation
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The prevention or minimizing of noise induced deafness through the use of hearing protection devices, the control of noise through engineering methods, annual audiometric tests and employee training.
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HEPA (High Efficiency Particulate Air Filter)
-
At least 99.97% efficient against particulates down to a 0.3 micron diameter size. A P100 filter can be used in place of HEPA filters.
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Housekeeping
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A way of controlling hazards along the path between the source and
the worker. Good housekeeping means having no unnecessary items in the workplace and keeping all necessary items in their proper places. It includes proper cleaning, control of dust, disposal of wastes, clean-up of spills and maintaining clear aisles, exits, and work areas.
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Human Error
- This term is used today to include not just workers’ errors, but
engineering deficiencies and lack of adequate organizational controls which together
account for the majority of accidents.
- Hygiene Practices
- A broad term for personal health habits that may reduce or prevent the exposure of a worker to chemical or biological substances.
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Hypersensitive
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The condition of being reactive to substances that normally would not affect most people.
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Hypothermia
- A condition in which body temperature drops below normal (36°C or 96.8°F). It most frequently develops from being exposed to very low temperatures. Hypothermia can cause death.
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I
- IDLH (Immediately Dangerous to Life and Health)
- The maximum concentration of a chemical in the air to which one can be exposed (for up to 30 minutes) without suffering irreversible health effects when not using a respirator.
- Incident
- An unwanted event which, in different circumstances, could have resulted in harm to people, damage to property or loss to a process. Also known as a near miss.
- Indirect Venting
- Allows only air through goggles, not liquid or particles. Commonly used in chemical applications.
- Indoor Air Quality (IAQ)
- The study, evaluation and control of indoor air quality related to temperature, humidity and airborne contaminants.
- Industrial Hygiene
- A science that deals with the anticipation, recognition, evaluation,
and control of hazards in the workplace. These hazards may cause sickness, harm to
employee health, discomfort, and inefficient performance on the job. Also known as occupational hygiene.
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Inhalation
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The breathing in of an airborne gas, vapor, fume, mist or dust.
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Injection
- To force or drive liquid or gas into the body.
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Injury Frequency Rate
-
The number of compensable injuries per 200,000 employee-hours of exposure. The following formula is used to calculate the injury frequency rate: Number of Compensable Injuries X 200,000 Hours Total Hours Worked.
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Injury Severity Rate
- A number that relates total days lost due to compensable injuries to the total hours worked during a specific period. The following formula is used to calculate the injury severity rate: Number of Days Lost X 200,000 Hours Total Hours Worked.
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Intrinsically Safe
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Product that won’t cause spark in an explosive environment.
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Irritant
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A substance which, in sufficient quantities, can inflame or irritate the eyes, skin or respiratory system (lungs, etc.). Symptoms include pain and reddening.
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Isotonic
-
Buffered to the same pH balance as the human eye.
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J
- Jersey
- Knitted material that is extremely soft and comfortable to wear.
- Job Hazard Analysis
- A technique used to identify, evaluate, and control health and safety hazards linked to particular tasks. A task analysis systematically breaks tasks down into their basic components. This allows each step of the process to be thoroughly evaluated.
- Job Rotation
- Moving an employee to one or more related jobs during a work shift.
- Joule
- Unit of energy used in describing a single pulse output of a laser.
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K
- Kevlar
- Cut-resistant, flame retardant fiber offers heat resistance and is often used in clothing and gloves.
- Knitwrist
- Knitted wristband prevents glove from falling off and debris from entering. Also keeps hands warmer.
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L
- Lanyard
- Flexible line used to secure a body harness to a lifeline or anchorage point.
- LCD
- Liquid Crystal Display.
- LED (Light Emitting Diode)
- Electrical device used as an indicator light and in flashlights.
- LEL (Lower Explosive Limit)
- Minimum percent of a combustible gas that could cause an explosion if exposed to any source of ignition.
- Level A Clothing
- Should be worn when the highest level of respiratory, skin, and eye protection is needed.
- Level B Clothing
- Should be worn when the highest level of respiratory protection is needed, but a lesser level of skin protection.
- Level C Clothing
- Should be worn when using air purifying respirators.
- Level D Clothing
- Should be worn only as a work uniform and not on any site with respiratory or skin hazards.
- Lifeline
- Line provided for direct or indirect attachment to a worker’s body harness, lanyard, or deceleration device. Good for horizontal or vertical applications.
- Localized
- Restricted to one spot or area in the body and not spread throughout it.
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Lockout
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A specific set of procedures for ensuring that a machine, once shut down for maintenance, repair or other reason, is secured against accidental start-up or movement of any of its parts for the length of the shutdown.
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Loss Control
- Measures taken to prevent and reduce loss. Loss may occur through
injury and illness, property damage, poor work quality, etc.
- LOTO
- Lockout/Tagout.
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M
- Material Safety Data Sheet (MSDS)
- A form that contains detailed information
about the possible health and safety hazards of a product and how to safely store, use and handle the product. Under the federal Hazardous Products Act, suppliers are required to provide MSDSs for all hazardous materials, as a condition of sale.
- Medical Surveillance
- The systematic approach to monitoring health changes in workers to identify and determine which effects may be work-related.
- Metatarsal
- Top part of the foot above the toes and below the shin bone.
- Micron
- Unit of measure for particle size. The smaller the number, the smaller the particle.
- Microfiber
- Type of fabric created with fibers that are thousands of times smaller than fibers in conventional fabrics. Provides exceptional pick-up ability.
- Mid-Sole
- Protective sole, usually made of steel, that protects the underside of the foot against punctures resulting from stepping on sharp objects.
- MIG
- Metal Inert Gas.
- Mil
- 1/1,000 of an inch. Used in reference to glove thickness.
- Mists
- Small droplets of a liquid that can remain suspended in air. Mists can form when
a vapor condenses back to its liquid state, or when a liquid breaks up.
- MSHA
- Mining Safety and Health Administration.
- Musculoskeletal Injuries
- Injuries to the system of muscles, tendons, ligaments, joints, bones and related structures of the human body.
- MUTCD (Manual on Uniform Traffic Control Devices)
- Defines the standards used by road managers nationwide to install and maintain traffic control devices on all streets and highways.
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N
- Nebulizer
- Hand-held ball that produces a mist or cloud when squeezed. Used in fit testing applications.
- Negative Pressure
- Respirators that depend on wearer’s lung power to draw air through a filter material.
- Neoprene
- Synthetic rubber that is lightweight and flexible even in temperature extremes. Has a wide range of chemical and abrasion resistance.
- NFPA
- National Fire Protection Association.
- NFPA 70E
- The standard for electrical safety in the workplace.
- NiCad
- Nickel cadmium rechargeable battery.
- NiMH
- Nickel metal hydride rechargeable battery.
- NIOSH (National Institute for Occupational Safety and Health)
- Independent federal agency which tests and certifies respirators.
- Nitrile
- Synthetic rubber resists a wide range of chemicals, as well as punctures, cuts, snags, and abrasions.
- Noise
- Unwanted sound that can lead to hearing loss or stress, or interfere with the ability to hear other sounds or to communicate.
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Nose Cup
-
Part of a full face respirator that is designed to reduce fogging.
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NRR (Noise Reduction Rating)
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The number of decibels by which the surrounding noise level is reduced.
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Nuisance Dust or Particle
-
Dust that does not cause disease or harmful effects when exposures are kept at reasonable levels.
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Nuisance Level
-
Air concentration of a chemical below OSHA’s permissible exposure limit.
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O
- Occupational Illness
- A harmful condition or sickness that results from exposure
in the workplace due to a biological, chemical, or physical agent or an ergonomic hazard.
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Occupational Safety
-
The maintenance of a work environment that is relatively free
from actual or potential hazards that can injure employees.
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OSHA (Occupational Safety and Health Administration)
-
Oversees and regulates workplace safety and health.
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Ozone
-
A form of oxygen that is an irritating, sharp-smelling gas. Prevalent when striking an arc while welding on aluminum, galvanized or stainless steel.
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P
- PAPR (Powered Air Purifying Respirator)
- Respirator system that uses a blower motor to pull in air and distribute it through a hose to the facepiece.
- Particulate
- Tiny pieces of dry or liquid matter.
- PEL (Permissible Exposure Limit)
- OSHA designated exposure limits to chemicals found in the air.
- Personal Monitoring
- A technique used to determine an individual’s personal exposure to a chemical, physical or biological agent. This is done by means of a sampling device worn on the worker’s body (e.g., personal monitor).
- Personal Protective Equipment (PPE)
- Any device worn by a worker to protect against hazards. Some examples are: respirators, gloves, earplugs, hard hats and safety glasses.
- PETG
- Material used for chemical and light impact protection.
- pH
- A measure of the acidity or alkalinity of a substance on a scale of 0–14, where 7 is neutral. Less than 7 becomes more acidic. Greater than 7 becomes more alkaline.
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Polycarbonate
-
Extremely impact resistant material that blocks out 99.9% UV rays.
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Polyethylene
-
Non-woven, lightweight plastic material that resists chemicals and moisture.
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Polypropylene
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Breathable, non-woven, lightweight thermoplastic material.
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Positive Pressure
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Refers to respirators in which air is delivered by either pump, compressor, tank, or through a motor blower. Maintains a constant flow of clean air and prevents contaminants from entering.
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PPM (Parts per Million)
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Measures very low concentrations or contamination levels.
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Prefilter
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Used on air purifying respirators. Prefilter traps particles and helps prolong the life of the cartridge. May also be used without a cartridge.
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Pressure Demand
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A positive pressure respirator that regulates air flow only when a person breathes. Conserves limited air supplies.
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Propionate
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Provides excellent abrasion resistance and limited chemical resistance.
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PSI (Pounds per Square Inch)
-
Measurement of pressure exerted by a solid, liquid, or gas.
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PVC (Polyvinyl Chloride)
-
Synthetic, abrasion-resistant material that protects against many acids, oils, fats, caustics, and petroleum hydrocarbons.
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Q
- Qualitative Fit Testing
- Tests the integrity of a respirator’s seal by determining if the worker can smell or taste a test agent such as saccharin, Bitrex, irritant smoke, or banana oil.
- Quantitative Fit Testing
- Respirator is worn in a test atmosphere (sometimes a booth) while instrumentation measure any leakage into the respirator.
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R
- Radiation
- The energy transmitted by waves through space or some medium. There
are two types of radiation: ionizing (X-Rays or radiation from a radioactive device), and non-ionizing radiation (infrared radiation, ultraviolet radiation).
- Repetitive Strain Injury
- A problem with the muscles, tendons or nerves that happens over time due to overuse. Examples of repetitive strain injuries include: carpal tunnel syndrome and tendonitis.
- Retainer
- Plastic ring that holds a cartridge or filter on a respirator.
- Rope Grab
- Device which attaches to a lifeline and provides a means of arresting a fall.
- Rubber
- Offers excellent abrasion, cut, tear, and temperature resistance, as well as great grip. Has poor flame resistance.
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S
- Safety Can
- An approved container, of not more than 5-gal. capacity, having a spring-closing lid and spout cover designed to safely relieve internal pressure when subjected to fire exposure.
- Safety Cuff
- Loose fitting, 2 ½” cuff allows glove to slip off if it becomes entangled.
- SCBA (Self Contained Breathing Apparatus)
- Supplied air system in which the air is supplied from a tank carried by the user.
- Sealed Seam
- Produced when materials are lapped and then thermally welded to produce a strong, tear-resistant seam. There are no fillers, sealants, bindings thread, or needle holes.
- SEI
- Safety Equipment Institute.
- Self-Retracting Lifeline
- Decelerating device which allows freedom of movement. Extends and retracts with the worker. Locks when fall occurs.
- Sensitizer
- A substance which on first exposure causes little or no reaction in humans or test animals. However, on repeated exposure, it may cause a marked response not
necessarily limited to the contact site.
- Serged Seam
- has 3 threads interlocked around the raw edges of material. For low hazard protective clothing.
- Shade #
- Refers to a lens which intercepts rays of light. Different shade #’s are used in applications such as welding.
- Shank
- Provides extra arch support in shoes and boots.
- Shock Absorber
- Allows dissipation of energy by extending the deceleration distance to reduce the fall arrest force.
- Shoulder Split Leather
- More economical than side split. Visible texture difference.
- Side Split Leather
- Most durable split leather. Provides the greatest protection.
- Spectra
- Strongest cut and burn-resistant fiber available (same term as Dyneema).
- Static Electricity
- An electrical charge that cannot move. This charge will eventually develop enough energy to jump as a spark to a nearby grounded or less highly charged object. If sparks occur in an ignitable vapor or dust mixture, it can cause an explosion or fire.
- Supplied Air
- Breathable air supplied to a worker’s mask/hood from a source outside the contaminated area.
- Supported Glove
- Has a cloth liner for added comfort, support, sweat absorption, and wear.
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T
- Thinner
- A liquid (usually solvent-based) that is used to dilute paint, varnish, cement or other material to a desired consistency. Most thinners are flammable.
- Tie-Off
- Connect to an anchorage point.
- TIG
- Tungsten Inert Gas. A form of welding.
- TLV (Threshold Limit Value)
- An estimate of the average safe airborne concentration of a substance that workers may be exposed to day after day without adverse effect.
- Toxic Substance
- Any substance that can cause acute or chronic effects to a person or
is suspected to cause disease or injury under certain conditions.
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Type 1 Safety Can
-
Dispense and fill from a single opening.
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Type 2 Safety Can
-
Has fixed nozzle and separate openings (except for the Uno can by Justrite) for dispensing and filling for a higher level of safety.
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U
- UL (Underwriters laboratories)
- An independent organization which operates laboratories to investigate devices and materials for potential hazards.
- Unsupported Glove
- Gloves without any type of fabric lining.
- USDA (United States Department of Agriculture)
- Monitors and meat and poultry facilities for proper handling and packaging.
- UV
- Ultra Violet.
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V
- Vapor
- Gaseous form of substances which are normally in the solid or liquid state at room temperature and pressure.
- Vermilion
- Red lens especially for indoor use to enhance contrast. Protects from fluorescent and halogen light glare.
- Vibration
- The back and forth motion of an object (for example, tool, machinery or other piece of equipment) that occurs in a predictable pattern or manner. Over-exposure to vibration can harm a part of the body (for example, the fingers) or it can affect the whole body.
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Vinyl
-
Abrasion-resistant, synthetic polymer that resists some acids, oils, fats, caustics, and petroleum hydrocarbons.
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Viton
-
Most chemical-resistant of all the rubbers. Protects against PCBs and most solvents. Offers excellent resistance to gas and water vapors, but offers minimal resistance to cuts or abrasions.
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Volatility
-
The tendency or ability of a liquid to quickly vaporize into the air. Examples of volatile liquids include alcohol and gasoline. Liquids that are volatile must be carefully dispensed and stored. This includes paying special attention to temperature.
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