supply of dry chemical powder type fire extinguisher , dry chemical powder type fire extinguisher - 6 kg capacity, to drawing / specification is :15683/2018 with carrying handle and mounting bracket. dry chemical powder for class of fire: abc to is:4308/2019 (each fire extinguisher should be clearly marked with batch no., date of manufacturing, date of expiry of the initially charged refill, best before use etc.) detailed specifications as per attach ed annexure - a. [ warranty period: 84 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permit ed: max 8 lacs ] ]