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CCPS Process Safety Glossary
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To terminate a procedure, such as the running of a computer program or the... Read More... |
The application of CPQRA in which the results of the analysis are compared... Read More... |
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A technique in which a substance is heated in stages until very slow... Read More... |
An undesirable, unplanned combination of events or circumstances that lead... Read More... |
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An event in which property damage, detrimental environmental impact, or... Read More... |
An unplanned event or sequence of events that results in undesirable... Read More... |
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An unintended, or sudden release of chemical(s) from manufacturing,... Read More... |
American Conference of Governmental Industrial Hygienists; an organization... Read More... |
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A method of logging progress when implementing a task or set of tasks. |
Constant Ea in the exponential part of the Arrhenius equation associated... Read More... |
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The constant E in the exponential part of the Arrhenius equation, associated... Read More... |
Denotes physical motion or activity in the performance of the equipment's... Read More... |
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A system in which failures are immediately evident during normal operation... |
An adverse effect on a human or animal body, with severe symptoms developing... Read More... |
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A short-term or rare exposure to a toxic agent in a single episode that is... Read More... |
The potential for injury or damage to occur as a result of an instantaneous... Read More... |
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The adverse (acute) effects resulting from a single dose or exposure to a... Read More... |
An incident investigation fashioned from the immediately available... Read More... |
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A system condition in which no heat is exchanged between the chemical system... Read More... |
No heat transfer occurs to or from the environment |
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An estimation of the computed temperature which a specimen would attain if... Read More... |
Induction period to event (spontaneous ignition, explosion, etc.) (ri) under... Read More... |
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See Dry Adiabatic Lapse Rate. |
Maximum increase in temperature that can be achieved. This increase only... Read More... |
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Procedural mechanisms, such as lockout/tagout procedures, for directing and/... Read More... |
The transport of material by and in the wind |
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The fraction of liquid phase, 1 – x, which, after flashing to the atmosphere... Read More... |
The principal object, substance, or material inflicting the physical harm or... Read More... |
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The statistical combination of several data points to form a single data... Read More... |
Sea level concentrations of the six principal constituents of dry air are... Read More... |
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The control of the level of pollutants prescribed by regulations that may... Read More... |
Procedures, schematic, software, maintenance, documentation, hardware, logic... Read More... |
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Distance in the direction the vapor cloud is traveling, i.e. the wind... Read More... |
A device or system that is comprised of components that meet both the... Read More... |
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Hardware operation that alternates between standby and running, e.g., a pump... Read More... |
The basis for an off-site consequence analysis required by the EPA RMP Rule... Read More... |