supply of auxiliary air reservoir 150 litersauxiliary air reservoir 150 liters,auxiliary air reservoir 150 liters capacity and drain cock assembly ( for main line icf c oaches ) drawing no.:- rdso / cg-k4026, alt . (1) items-1 & 2 specification: - c -k407 (rev.-2) amndt. 1 in the relevant drawing no. cg-k4026, alt . (1) vide note no.-2 it is mentioned that- inspection and test shall confirm to the requirements of section iii of is:2825 1- after perusal section iii of is:2825 it is observed that -inspection of class ii pressure vessel may be carried out according to clause 8 (8.1 to 8.7.11) in three stages - stage i- material inspection. stage ii -during fabrication/welding. stage iii - a fter fabrication complete and finished pressure vessel. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ] => limited