Texas Fire Extinguisher Exam

Test pressure gauges shall be capable of being read within ___% of test pressure - 90-110 Pressure gauges used on test equipment shall be calibrated at least - Semi-annually The temp used for drying hydro equipment shall not exceed _________ degrees inside the shell - 150 degrees The equipment for hydrostatic testing of high pressure cylinders and cartridges (dot 3series) shall meet the specifications of - Methods of hydrostatic testing of compressed gas cylinders A hydrostatic test pump, hand or power operated shall be capable of producing not less than __________ of the test pressure and shall include appropriate check valves and fittings - 150 percent Dry chemical, stored pressure, with mild steel shells, brazed brass shells, or aluminum shells - Hydro every 12 years Dry chemical, stored pressure, cartridge or cylinder operated with mild steel shells need to be inspected how often?? - 12 yr intervals everything else is 5yr How often do dry chemicals with stainless steel shells need to be inspected - Every 5 years If, at any time, a fire extinguisher shows evidence of ___________________________ to the extent as to indicate weakness, it shall be condemned or hydrostati- cally retested - dents, mechanical injury, or corrosion