Under the Singapore Standard, Code of Practice SS 578, Use and Maintenance of Portable Fire Extinguishers, the owner or occupant of a premise is responsible for the inspection and maintenance of the fire extinguishers installed in the premises. This is to ensure that their fire extinguishers are in good working order.
According to the Code of Practice SS578. It is mandatory for all Fire Extinguishers in commercial buildings to be serviced on a yearly basis.
It is recommended to service your fire extinguisher(s) yearly to ensure it is in optimum working condition.
The maintenance and servicing of portable extinguishers can only be carried out by qualified and trained persons in the proper workshops of a company.