Unit Inspection Of Fire Extinguishers

After each use, the fire extinguisher must be sent to the maintenance unit that has obtained a maintenance permit (hereinafter referred to as the maintenance unit) for inspection, replace the damaged parts, and refill the fire extinguishing agent and drive gas.
Whether the fire extinguisher has been used or not used, when the specified period has reached the year and month from the factory, it must be sent to the maintenance unit for hydrostatic test inspection.
Portable and cart-type fire extinguishers, portable and cart-type dry chemical fire extinguishers. and portable and cart-type carbon dioxide fire extinguishers that have completed a five-year term, and every two years thereafter, must undergo hydrostatic tests and other inspections.
Portable and cart-type mechanical foam fire extinguishers and portable clean water fire extinguishers must be inspected by hydrostatic tests every two years after the expiration of three years.
Portable and cart-type chemical foam fire extinguishers and portable acid and alkali fire extinguishers must be inspected for two years, and every other year thereafter, a hydrostatic test inspection [3] must be carried out.
If the condition found in the visual inspection is found, it must be disposed of as a waste product.