الوصف

~~Typical Class I Locations: •Petroleum refineries, and gasoline storage and dispensing areas.
•Industrial firms that use flammable liquid in dip tanks for parts cleaning or other operations.
•Petrochemical companies that manufacture chemicals from gas and oil.
•Dry cleaning plants where vapors from cleaning fluids can be present.
•Companies that have spraying areas where they coat products with paint or plastics.
•Aircraft hangars and fuel servicing areas.
•Utility gas plants, and operations involving storage and handling of liquefied petroleum gas or natural gas.

 Typical Class II Locations:
•Grain elevators, flour and feed mills
•Plants that manufacture, use or store magnesium or aluminum powders.
•Plants that have chemical or metallurgical processes…producers of plastics, medicines and fireworks, etc.
•Producers of starch or candies.
•pice-grinding plants, sugar plants and cocoa plants.
•Coal preparation plants and other carbon-handling or processing areas.

Typical Class III Locations:
•Textile mills, cotton gins, cotton seed mills and flax processing plants.
•Any plat that shapes, pulverizes or cuts wood and creates sawdust or flyings.

Note: fibers and flyings are not likely to be suspended in the air, but can collect around machinery or on lighting fictures and where heat, a spark or hot metal can ignite them.