David roberts - gas analyst

I have been an independent self-employed Gas Analyst since 1985. Prior to this time, from 1971, I was employed as a Deck Officer on tankers testing tanks as required on all classes of tankers from small coastal tankers to 360,000 VLCCs.

I mainly carry out testing in the Humber area but do travel to other areas of the UK. Since 1985 I have carried out work on all classes of ships, barges, shore tanks, culverts, pipe lines and enclosed spaces.

I use Honeywell Impact Pro which is calibrated on site.