Tank was 4000 ltr en bevestigd door OvD dat de tank leeg is.
4000 liter dus (waarschijnlijk) 2 tons tank.
Diameter, Length and Height
The half-tone tank is 33.3" (845mm) in diameter, 94.5" (2,400mm) long and 43.3" (1,100mm) high. The 1-ton tank is 39.4" (1,000mm) in diameter, 120.0" (3,050mm) long and 51.2" (1,300mm) high and the 2 tonne tank is 47.2"
(1,200mm) in diameter, 173.2"
(4,400mm) long and 63.0" (1,600mm) high, according to BP.
Installation
The tank must be installed according to standard physical clearances and it needs to safely accessible for when the fuel tanker drives up to your home. BP explain that a 1,000- or 2,000-liter vessel must be at least 3 meters from the boundary of your property and at least 3 meters from the edge of any buildings on your land.
A 4,000-liter vessel must be at least 7.5 meters from any structure, including the boundary. This takes into account safety, accessibility and to some extent, aesthetics, although a personalised site inspection by a qualified engineer from the company will tailor the installation process to your specific household and individual requirements.
http://www.ehow.co.uk/list_7526614_amoco-gas-tank-standard-specifications.html