Testing Procedure
General:
1. The pressure in hydrostatistic test of a
cylinder shall be maintained for a minimum of
30 seconds, but for no less time than is
required for complete expansion of cylinder
and to complete the visual examination of the
cylinder.
2. All valve, Internal parts, and hose assemblies
shall be removed, and the fire extinguisher
shall be emptied before testing
2.1 On certain dry chemical and dry power fire
extinguishers (Cartridge-Operated), where the
manufacturer recommends that certain
internal parts not be removed, those parts
shall not be removed.
3. All type of fire extinguishers except water type
shall have all traces of fire extinguishing
agents removed from the inside of the
extinguisher before they are filled with water