Occupational Safety and Health Administration or OSHA
An organization that operates under the US Department of Labor whose focus is to ensure safe, healthy working conditions by setting and enforcing standards applied to working environments.
OSHA The Williams-Steiger Occupational Safety and Health Act of 1970. OSHA is a law designed to protect the health and safety of industrial workers and also the operators of water supply systems and treatment plants.
OSHA: Occupational Safety and Health Administration.
Outdoor Air: Air taken from the external atmosphere and, therefore, not previously circulated through the system.
An OSHA regulation that requires chemical manufacturers, suppliers, and importers to assess the hazards of the chemicals that they make, supply, or import, and to inform employers, customers, and workers of these hazards through MSDS information.
Hazardous Chemical An EPA designation for any hazardous material requiring an MSDS under OSHA's Hazard Communication Standard. Such substances are capable of producing fires and explosions or adverse health effects like cancer and dermatitis.
National Institute for Occupational Safety and Health (NIOSH) NIOSH, part of the Centers for Disease Control, conducts research on worker safety and health and recommends standards for worker protection to OSHA.
See OSHA.
odor threshold. The minimum odor of a water sample that can just be detected after successive dilutions with odorless water. Also called THRESHOLD ODOR.
offstream uses.
Occupational Safety and Health Act (OSHA) - This 1970 act addresses health and safety in the workplace. It created the Occupational Safety and Health Administration (also OSHA) at the same time that the EPA was created.
Material Safety Data Sheet (MSDS): A compilation of information required under the OSHA Communication Standard on the identity of hazardous chemicals, health, and physical hazards, exposure limits, and precautions.
hazard communication standard
US OSHA standard requiring all employers to inform employees of the hazard of substances in the workplace and the steps necessary to avoid harm.
Interagency Regulatory Liaison Group (Composed of EPA, CPSC, FDA, and OSHA)
IRIS
Instructional Resources Information System. Integrated Risk Information System ...
Permissible Exposure Limit (PEL): An exposure limit established and enforced by the Occupational Safety and Health Administration (OSHA) which may be expressed as a time-weighted average (TWA) limit, ...
Permissible Exposure Limit: Also referred to as PEL, federal limits for workplace exposure to contaminants as established by OSHA.
Personal Air Samples- Air samples taken with a pump that is directly attached to the worker with the collecting filter and cassette placed in the worker's breathing zone (required under OSHA asbestos standards and EPA worker protection rule).
The Occupational Safety and Health Administration (OSHA) has set an occupational exposure limit of 100 ppm of ethylbenzene for an 8-hour workday for a 40-hour workweek.
The standard way to express total ozone amounts in the atmosphere is by using Dobson units. Ozone used in industry is measured in ppm (OSHA exposure limits for example), and percent by mass or weight.
 See also: Hazard, Air, Exposure, Waste, Toxic
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