bids are invited for calibration gas mixture for rga - as per boq sl. no.1 , calibration mixture for ecu in process - as per boq sl. no.2 , calibration gas mixture for propylene - as per boq sl. no.3 , calibration gas mixture for sweet gas - as per boq sl. no.4 , calibration gas mixture for butene 1 - as per boq sl. no.5 , calibration mixture for cos slash mercaptans - as per boq sl. no.6 , calibration gas mixture for low co slash co2 - as per boq sl. no.7 , calibration mixture for h2s in propylene - as per boq sl. no.8 , calibration gas mixture for green oil - as per boq sl. no.9 , calibration mixture permanent gas low - as per boq sl. no.10 , calibration gas mixture for nga - as per boq sl. no.11 , calibration mixture for ethylene product - as per boq sl. no.12 , calibration gas mixture for oxygenates - as per boq sl. no.13 , calibration mixture for cyclopentadiene - as per boq sl. no.14 , calibration gas mixture dash reactor vapour - as per boq sl. no.15 , calibration gas mixture for flash drum - as per boq sl. no.16 , calibration gas mixture dash evaporator liqui - as per boq sl. no.17 , calibration gas- butene 1 and col. feed - as per boq sl. no.18 , calibration gas mixture for catalyst - as per boq sl. no.19 , calibration gas mixture dash ethylene recycle - as per boq sl. no.20 , calibration gas mixture for c5 product - as per boq sl. no.21 , ultra dash pure helium - as per boq sl. no.22 total quantity : 30