CH4 jaanch karne ke liye kon-kon se instrument ka use kiya jaata hai? | Which instruments are use to check methane in mines and in general?

      ·    F.S.L.

·    M.G.D. (MULTIGAS DETECTOR)

·    METHANOMETER(DIGITAL & ANALOG)

·    L.M.D.(LOCAL METHANE DETECTOR)

·    A.F.D.(AUTOMATIC FIRE DUMP DETECTOR)

·    GAS CHROMATOGRAPHY(ON THE SPOT)– MOST ACCURATE

·    AIR ANALYSIS BY LABORATORY- MOST ACCURATE