procurement of dry chemical powder (dcp) fire extinguishers , dry chemical powder (dcp) 9 kg capacity bc (squeeze grip cartridge type) portable fire extinguisher with squeeze grip controllable discharge mechanism fitted with 200 gm gas cartridge, discharge hose & nozzle, filled with sodium bi-carbonate conforming to is 4308 applicable on b, c fires. fire rating 89b as per is-15683 with new isi mark. additional specification: 1. shell thickness should be not less than 03 mm. 2. separate lifting handle to be provided, other than squeeze grip handle. 3. lifting handle should be welded with the body, made up of 10 mm rod. 4. weight of co2 in cartridge should be 200 grams. 5. spare cartridge (with 200 gm of co2) to be given with all extinguishers. 6. co2 cartridge mouth size should be 27 mm dia / left hand thread. 7. hydro test certificate should be attached.