The current standard for servicing and maintenance of fire-fighting equipment here in Ireland is:
IS 291 : 2002 “The use, siting, inspection and maintenance of portable fire extinguishers”. Proper maintenance of your fire extinguishers is absolutely essential for the safety of personnel and protection of your property. The various standards and legislation require that fire-fighting equipment is serviced and inspected at specific intervals by a competent person. For fire extinguishers the general requirements are an annual service by a competent person and monthly inspections by responsible in house personnel.