"Dye Penetrant Test (Liquid Penetration Examination) And Ratio Of By Volume Betwee N Penetrant, Cleaner & Developer Shall Be 1:3:2 As Per Rdso Specification No-M&C/Ndt/105/2001" As Per Annexure Schedule Attached --.Shelf Life 12-18 Months. [ Warranty Period: 30 Months After The Date Of Delivery ] ]