As a noun, an interface is either: 1  A user interface, consisting of the set of dials, knobs, operating system commands, graphical display formats, and other devices provided by a computer or a program to allow the user to communicate and use the computer or program.
What are flammable and combustible materials? Flammable materials can be found as solids, liquids, or gases. Flammable solids can be classified in three categories: desensitized explosives, self-reactive materials, and readily combustible solids.
Notes: 1  The list of Extremely Hazardous Substances is found in the appendices of 40 CFR 355.40. 2  The 5,000 lbs of flammable material is the combined total of the release â it does not have to be all one material. 3  Episodic releases associated with a single initiating event should be considered a single incident.