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NOTE: This is an unformatted excerpt from our online fire protection training library.

Classification Basics

Classification Terminology

Division 1 Areas

Division 1 areas are separately defined for Class I Class I
An area where flammable liquids are transferred from one container to another is an example of a Class I, Division 1 area, but the size of container and frequency of the operation are also considerations. Areas where only small containers are used may not require classification., Class II Class II
The interiors of grain elevators are common examples of Class II, Division 1 areas., and Class III Class III
Textile mills, areas where clothing is manufactured, and many woodworking facilities are examples of Class III, Division 1 areas, but many such areas may be unclassified where proper dust collection methods and housekeeping procedures are used.. Generally, in each case, a Division 1 area is a location where ignitable mixtures of gases, vapors, dusts, fibers, or flyings exist normally or frequently either during normal operations or during maintenance operations. While the Class describes the type of ignitable materials, the Division describes the degree of risk or the likelihood that the hazard will exist.

Tank car/tank truck loading and unloading via open system. Top or bottom product transfer.
NOTE: This is an unformatted excerpt from our online fire protection training library.

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