At first, if necessary, the recharge of fire extinguishers is carried out. Procedure is carried out according to indications of producers of fire extinguishers concerning amount of fire extinguishing substance. Then diagnostics is carried out.
During diagnostics compliance of mass of the fire extinguisher and pressure in the fire extinguisher case to the established norms is checked, the case looks round regarding identification of deformations and damages. Time in five years (or is more often - at detection during diagnostics of dents, a rust, etc.) is carried out survey of the case of the fire extinguisher with drawing the marking specifying the following term of obligatory survey.
Depending on results of research the complex of further works is defined - it can do bytremont and painting of the fire extinguisher or its write-off.