Dga Calibration Gas Mixture,Calibration Standard Gas Mixture In 0.5 Liter Water Capacity, Alu Minium Canister Consiting Of 10 Liters At 20 B A R Pressure Having Following Composition: 1) Methane =100 0 Ppm , 2) Ethane = 1000 Ppm, 3)Acetylene = 1000 Ppm, 4)Ethylene=1000 Ppm, 5) Hydrogen = 1000 Ppm , 6) Co =5000 Ppm,7) Co2= 5000 Ppm & Balance Nitrogen Along With Calibration Certificate Make: Spantech ,Spancan,Sigma, Hamilton & Nucon. [ Warranty Period: 12 Months After The Date Of Delivery ] ]