.This specification covers the following types and classes of extinguishers: Type I Stored pressure type, Category A - Temperature range -40 to +140, Category B - Temperature range +35 to +140. Type II Cartridge operated type, Category A - Temperature range -40 to +140, Category B - Temperature range +35 to +140.

To specify minimum requirements for a water solution type hand fire extinguisher which shall be suitable for use on incipient fires which may occur in an airplane cabin interior. The type of fire for which these units are intended is one involving combustible materials such as paper, textiles and similar materials