As little as 50 ml of oil suffices for analyses to be performed. This is important
since, although dissolved gas analysis (DGA) has primarily been used for screening
of large, oil-filled transformers (due to the capital involved in such assets) and where
the loss of sampled oil would be insignificant, the increasing use of the technique
with small oil volume plant such as bushings, CVTs etc., has made the volume of oil
to remove critical.