... 4.ISO9000:2000 certificate A). Performance and Use Portable dry powder extinguisher is a kind of light, efficient and movable ... fire control equipment based on ABC dry powder extinguishing agent—— ammonium phosphate. The driving gas——nitrogen, ... EN3 3. Working pressure: 18Bar; 4. Test Pressure: 27Bar;Portable Dry Powder fire extinguisher1kg, 2kg, 3kg, 4kg,5, 6kg, 8kg, 9kg ...