Class 1 Division 1 is a classification used in the National Electrical Code (NEC) to designate locations where flammable gases, vapors, or liquids are present in sufficient quantities to create explosive or ignitable mixtures. These environments typically include areas such as refineries, chemical plants, and certain manufacturing facilities. In these locations, special precautions and equipment, such as explosion-proof enclosures, are required to ensure safety and prevent ignition sources.
Class 1 Division 1 location is designated as an area where flammable volatile liquids or liquefied flammable gases are transferred from one container to another. An example of this would be at a gas station when you put gasoline into your vehicle.The area around the pumps is class 1 div. 1.
Class 4 division 1 (more properly called Division 4.1) is for flammable solids.
Class 4 division 1 (more properly called Division 4.1) is for flammable solids.
Class 1 Division 3 explosive
DOT Class 2, Division 1 (more properly called Division 2.1) is for flammable gases.
DOT Class 2, Division 1 (more properly called Division 2.1) is for flammable gases.
DOT class 6 division 1 materials consist of poisonous materials.
Class 4 Division 1 (more properly called Division 4.1) is for flammable solids.
In the realm of hazardous locations Class 1 refers to an environment containing flammable or explosive vapors or gases and Division 2 is a location where those gases are expected to be present only during an upset condition.
flammable solid
Poisonous materials are found in DOT division 6.1.
division 4.1 is flammable solids