tender for set of standard calibration gas canister for dga consisting of (1) methane, ethane, ethylene,acetylene, hydrogen each 1000 ppm,co & co2 each 5000 ppm and nitrogen balance-01no, (2) each gases500 ppm- 01 no, (3) each gases 100 ppm -01 no with septa and knob arrangement to draw sample directly fromcanister using gc syringe preparation . tolerance+/-20 & shelf life 12 months . canister capacity 0.5 litres,filling pressure 20 kg/sq.cm with test certificate and suitable septum as spares. .
