supply of stored pressure fire extinguishers of mechanical foam type , stored pressure fire extinguishers of mechanical foam type with a capacity of 09 litre, conforming to is 15683:2018 (or latest), designed for eff ective fire fighting against class b fire and having fire rating of 233 b. the extinguisher shall be constructed from stainless steel materials conforming to claus e 9.2.6 of is 15683:2018. the foam concentrate shall be aqueous film forming foam (afff) confirming to is 4989:2018. the unit shall be equipped with flexi ble hose and foam applicator nozzle. a brass or stainless steel squeeze grip valve shall be provided in accordance with clause 9.3 of is 15683. test certificate from nabl accredited laboratory for the test pressure (pt) of the assembled unit as mentioned in clause 6.1 of is 15683:2018 shall be provided along with sup ply. each unit shall be supplied with a wall bracket or stand for secure mounting and shall include maintenance instructions for annual inspection by certified personnel. marking shall be as per clause 10 of is 15683:2018 with the year of manufacture permanently engraved or embossed. complete documentation in cluding user manual, warranty, and certification details must be provided with each extinguisher. [ warranty period: 30 months after the date of delivery ] ]