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Hearing protection device

A hearing protection device, also known as a HPD, is an ear protection device worn in or over the ears while exposed to hazardous noise to help prevent noise-induced hearing loss. HPDs reduce the level of the noise entering the ear. HPDs can also ...

Hearing protection fit-testing

Hearing protector fit-testing, also known as field attenuation estimation system, determines how effective a hearing protection device is for an individual when worn correctly. This is typically carried out using one of the available fit-testing ...

Herbert William Heinrich

He was born on October 6, 1886 in Bennington, Vermont. He was an Assistant Superintendent of the Engineering and Inspection Division of Travelers Insurance Company when he published his book Industrial Accident Prevention, A Scientific Approach i ...

Helicopter Underwater Escape Training

Helicopter Underwater Escape Training is training provided to helicopter flight crews, offshore oil and gas industry staff law enforcement personnel, and military personnel who are regularly transported by helicopters over water. As the name impl ...

Hexavalent chromium

Hexavalent chromium, Cr, chromium 6) is the chromium in any chemical compound that contains the element in the +6 oxidation state. Virtually all chromium ore is processed via hexavalent chromium, specifically the salt sodium dichromate. Approxima ...

Hierarchy of hazard controls

Hierarchy of hazard control is a system used in industry to minimize or eliminate exposure to hazards. It is a widely accepted system promoted by numerous safety organizations. This concept is taught to managers in industry, to be promoted as sta ...

Hot work

Hot work is a process that can be a source of ignition when flammable material is present or can be a fire hazard regardless of the presence of flammable material in the workplace. Common hot work processes involve welding, soldering, cutting, br ...

Human factors and ergonomics

Human factors and ergonomics is the application of psychological and physiological principles to the engineering and design of products, processes, and systems. The goal of human factors is to reduce human error, increase productivity, and enhanc ...

Human Factors in Engineering and Design

Human Factors in Engineering and Design is an engineering textbook, currently in its seventh edition. The book, first published in 1957, is considered a classic in human factors and ergonomics, and one of the best-established texts in the field. ...

Donald Hunter (physician)

Donald Hunter CBE FRCP was a British physician and author of a classic text on occupational medicine, The Diseases of Occupations.

Hydrazine

Hydrazine is an inorganic compound with the chemical formula N 2 H 4. It is a simple pnictogen hydride, and is a colorless and flammable liquid with an ammonia-like odor. Hydrazine is highly toxic and dangerously unstable unless handled in soluti ...

Impact of nanotechnology

The impact of nanotechnology extends from its medical, ethical, mental, legal and environmental applications, to fields such as engineering, biology, chemistry, computing, materials science, and communications. Major benefits of nanotechnology in ...

Indicative limit value

In the law of the European Union, indicative limit values, more exactly indicative occupational exposure limit values, are human exposure limits to hazardous substances specified by the Council of the European Union based on expert research and a ...

Indoor air quality

Indoor air quality is the air quality within and around buildings and structures. IAQ is known to affect the health, comfort and well-being of building occupants. Poor indoor air quality has been linked to sick building syndrome, reduced producti ...

Indoor Environmental Quality Global Alliance

The Indoor Environmental Quality Global Alliance was initiated in 2014 aiming to improve the actual, delivered indoor environmental quality in buildings through coordination, education, outreach and advocacy. The alliance works to supply informat ...

Industrial robot

An industrial robot is a robot system used for manufacturing. Industrial robots are automated, programmable and capable of movement on three or more axis. Typical applications of robots include welding, painting, assembly, disassembly, pick and p ...

Inhalation exposure

Inhalation is a major route of exposure that occurs when an individual breathes in polluted air which enters the respiratory tract. Identification of the pollutant uptake by the respiratory system can determine how the resulting exposure contribu ...

Institut national de recherche et de securite

The French National Research and Safety Institute for the Prevention of Occupational Accidents and Diseases is a French association. It works under the auspices of the Caisse nationale de l’assurance maladie des travailleurs salaries. Its board i ...

Intratracheal instillation

Intratracheal instillation is the introduction of a substance directly into the trachea. It is widely used to test the respiratory toxicity of a substance as an alternative to inhalation in animal testing. Intratracheal instillation was reported ...

ISO 20471

ISO 20471 is an International Organization for Standardization technical standard describing requirements for high-visibility clothing, along with methods for testing and confirming that clothing meets those requirements.

ISO 45001

ISO 45001 is an ISO standard for management systems of occupational health and safety, published in March 2018. The goal of ISO 45001 is the reduction of occupational injuries and diseases, including promoting and protecting physical and mental h ...

Isocyanate

Isocyanate is the functional group with the formula R−N=C=O. Organic compounds that contain an isocyanate group are referred to as isocyanates. An organic compound with two isocyanate groups is known as a diisocyanate. Diisocyanates are manufactu ...

Nikolai Izmerov

Nikolai Fedotovich Izmerov was a 20th-century Soviet and Russian occupational hygienist and public figure, who made significant contributions to occupational hygiene.

Job safety analysis

A job safety analysis is a procedure which helps integrate accepted safety and health principles and practices into a particular task or job operation. In a JSA, each basic step of the job is to identify potential hazards and to recommend the saf ...

Job strain

Job strain is a form of psychosocial stress that occurs in the workplace. One of the most common forms of stress, it is characterized by a combination of low salaries, high demands, and low levels of control along with raises and paid time off re ...

Job-exposure matrix

A job-exposure matrix is a tool used to assess exposure to potential health hazards in occupational epidemiological studies. Essentially, a JEM comprises a list of levels of exposure to a variety of harmful or potentially harmful agents for selec ...

Jury stress

Jury stress or juror stress is physical and mental tension that affects members of juries. Its causes include "exhaustion, sequestration, the mountain of evidence, and the desire to do the right thing". Jury stress can come as a result of seeing ...

Kissing the shuttle

"Kissing the shuttle" is the term for a process by which weavers used their mouths to pull thread through the eye of a shuttle when the pirn was replaced. The same shuttles were used by many weavers, and the practice was unpopular. It was outlawe ...

Kazutaka Kogi

Kazutaka Kogi is a Japanese academic known for his contributions to simple, low-cost interventions in small manufacturing enterprises that improve the working conditions for the employees and at the same time also improve the overall productivity ...

Laboratory safety

Many laboratories contain significant risks, and the prevention of laboratory accidents requires great care and constant vigilance. Examples of risk factors include high voltages, high and low pressures and temperatures, corrosive and toxic chemi ...

Joseph LaDou

Joseph LaDou is an occupational and environmental medicine physician who practiced in Silicon Valley during the early years of the semiconductor and computer industries. He was appointed the first Chief of the University of California, San Franci ...

Latex allergy

Latex allergy is a medical term encompassing a range of allergic reactions to the proteins present in natural rubber latex. Latex allergy generally develops after repeated exposure to products containing natural rubber latex. When latex-containin ...

Lead safe work practices

Mandated by the United States Department of Housing and Urban Development standard 24 CFR Part 1330, Lead-Safe Work Practices provide those performing remodeling tasks in homes built before 1978 with guidelines on procedures they should be using ...

Pope Leo XIII

Pope Leo XIII was head of the Catholic Church from 20 February 1878 to his death. He was the oldest pope, and had the third-longest confirmed pontificate, behind those of Pius IX and John Paul II. He is well known for his intellectualism and his ...

Lift table bellows

A lift table bellows is a safety device that forms a protective barrier between the lift table operator and the equipments moving parts. The protective barrier is constructed from a wide range of material with 23oz vinyl being the most common in ...

Light curtain

Light curtains are opto-electronic devices that are used to safeguard personnel in the vicinity of moving machinery with the potential to cause harm such as presses, winders and palletisers. Light curtains can be used as an alternative to mechani ...

List of diving environments by type

The diving environment is the natural or artificial surroundings in which an underwater dive is done. It is usually underwater, but professional diving is sometimes done in other liquids. Underwater diving is the human practice of voluntarily des ...

List of R-phrases

R-phrases are defined in Annex III of European Union Directive 67/548/EEC: Nature of special risks attributed to dangerous substances and preparations. The list was consolidated and republished in Directive 2001/59/EC, where translations into oth ...

List of S-phrases

S-phrases are defined in Annex IV of European Union Directive 67/548/EEC: Safety advice concerning dangerous substances and preparations. The list was consolidated and republished in Directive 2001/59/EC, where translations into other EU language ...

Lockout-tagout

Lock Out, Tag Out, Lock Out, Tag Out, Try Out or lock and tag is a safety procedure used in industry and research settings to ensure that dangerous machines are properly shut off and not able to be started up again prior to the completion of main ...

LOLI Database

The LOLI Database, also known as the List of Lists is an international chemical regulatory database developed and maintained by ChemADVISOR, Inc. The LOLI database is one of the primary sources of information for the creation of safety data sheet ...

Lone worker monitoring

Lone worker monitoring is the practice of monitoring the safety of employees who may be exposed to unique risks, due to work conditions in which they are isolated from people who might be able to offer aid in the event of an emergency.

LTIFR

LTIFR refers to Lost Time Injury Frequency Rate, the number of lost time injuries occurring in a workplace per 1 million hours worked. An LTIFR of 7, for example, shows that 7 lost time injuries occur on a jobsite every 1 million hours worked. Th ...

Manganese

Manganese is a chemical element with the symbol Mn and atomic number 25. It is not found as a free element in nature; it is often found in minerals in combination with iron. Manganese is a transition metal with a multifaceted array of industrial ...

Manual handling of loads

Manual handling of loads, manual material handling involves the use of the human body to lift, lower, fill, empty, or carry loads. The load can be animate or inanimate. Most manufacturing or distribution systems require some manual handling tasks ...

Maquila Decree

The Maquila Decree, established in 1989, lays out the legal requirements for foreign operations in Mexico. As described by the Bancomext Mexican Showroom, an organization to promote foreign investment in Mexico, this program allows foreign compan ...

Maslach Burnout Inventory

The Maslach Burnout Inventory is an introspective psychological inventory consisting of 22 items pertaining to occupational burnout. The original form of the MBI was constructed by Christina Maslach and Susan E. Jackson with the goal to assess an ...

Mercury (element)

Mercury is a chemical element with the symbol Hg and atomic number 80. It is commonly known as quicksilver and was formerly named hydrargyrum. A heavy, silvery d-block element, mercury is the only metallic element that is liquid at standard condi ...

Karen Messing

Karen Messing is a Canadian geneticist. She is an emeritus professor in the biological sciences at the University of Quebec at Montreal. She is known for her work on gender, environmental health and ergonomics. She was given the Jacques Rousseau ...

Micro-g environment

The term micro-g environment is more or less synonymous with the terms weightlessness and zero-g, but indicates that g-forces are never exactly zero - just very small, and, occasionally, air resistance). The symbol for microgravity, μg, was used ...

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Pino - logical board game which is based on tactics and strategy. In general this is a remix of chess, checkers and corners. The game develops imagination, concentration, teaches how to solve tasks, plan their own actions and of course to think logically. It does not matter how much pieces you have, the main thing is how they are placement!

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