Fire Extinguishers - self inspecting? The Standard does say an experienced and/or qualified person does the six monthly(in an arduous location) and yearly checks in other locations Sarah, A basic fire extinguisher use course that results in NZQA 3271 and 4647 being attained should give you some familiarity with classes of extinguisher and their construction, and what to look for as far as damage goes.
Along with some basic items of test equipment (balance scales to check weight, rubber mallet to loosen dry powder FXs) you may need sundry items like tags, clips and hoses, signage, wall hooks etc should cover it, along with some record keeping.
Any particular reason for wanting to DIY this?