Details: servicing & refilling of following types of fire extinguishers conformity with the procedure and period laid down in is 2190:2010 and as amended time to time by bis. this also includes the collection & reinstallation of cylinders from the institute, replacement of defective spare parts like nozzle, safety clip, rings, washer, plunger, metal cap, gas cartridge, pressure gauge/horn, discharge hosepipe, squeeze grip value, lock guard or pin, control/brass/ss value etc required at the time of re-filling complete in all respects and directions of engineer-in-charge. dry chemical powder type fire extinguisher 4 kg dry chemical powder type fire extinguisher 6 kg dry chemical powder type fire extinguisher 9 kg co2 type fire extinguisher 4.5 kg hydraulic pressure testing conformity with the procedure and period laid down in is 2190:2010 and as amended time to time by bis. if fire extinguishers fail in hydraulic testing then its report should be submitted to engineer-in-charge. dry chemical po