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Hygiene: Estimating and Understanding Personal Exposure to Inhalation of Vapors on Chemical Plants
It is a vital aspect of chemical plant design and operation to minimize any contact of the operating and maintenance personnel with the chemicals on the plant. Often the most significant route of exposure to chemicals is by inhalation, and in this case it is relatively easy to measure exposure. This has led to the development of standards which indicate levels of exposure which should minimize any risk to health. These will be called Occupational Exposure
Limits (OELs) in this Guide as a generic name...