01 . supplying of medical oxygen cylinder b type medical oxygen cylinder isi mark 40 cu . ft , 1 . b type high pressure seamless cylinder for medical oxygen gas , cylinder are isi marked conforming to is: 7285 part 2 , certified by bureau of indian standards ( bis ) & approved by the chief controller of explosive ( ccoe ) government of india02 . . cylinder made from manganese steel03 . 10 . 2 ltr . water capacity ( 40 cu . ft . ) 04 . fitted with bull nose type valve as per is: 3224 , and neck cap05 . valve made of brass and chrome plated . 06 . working pressure - 150 kg . f/cm2 at 15 deg . c . 07 . hydraulic test pressure - 250 kg . f/cm2 . 08 . color code of cylinder should as per is: 3933-1966 with updating till date . 09 . certificate manufacturing certificate , isi certificate & department of explosion government of india to be provided for each specified cylinder separately at the time of supply . 10 . filled with medical oxygen gas of medical grade11 . matching key cum spanner to release oxygen for each cylinder separately . 12 . with all accessories - 1 ) flow meter 2 ) humidifier bottle 3 ) adult face mask 4 ) tubing 5 ) spanner , etc .