Page 25 - Xmo Strata - Bulletin Archive

7/2/2019 Page 6 of 11

Fig 3.12b – Typical composite hazardous area classification around dispenser during refuelling
(with stage 2 vapour collection installed)

Hazardous Areas – Tanker Delivery

The area classification around tankers has been altered quite substantially. The Zone 1 area that previously
encased the entire tanker are has been reduced to cover an area within 1m of the tank connection points and
hoses. The zone 2 area that extended 4m from the connection points remains, but up to a height of 1m across
the entire area instead of the 1.25m within 2m that sloped down to ground at 4m. An additional Zone 2 has
been created 1m around the tanker vapour vent.

Fig 3.2 – Typical hazardous area classification of a road tanker during unloading

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Environmental Bulletin No 9 Zones.doc