Scope: This document specifies the product characteristics and test/assessment methods for workshop fabricated cylindrical, horizontal steel tanks, single (type S) and double skin (type D) intended to be used for the underground storage of water polluting liquids (both flammable and non-flammable), specifically used for storage and/or supply of fuel for building heating/cooling systems, and of hot or cold water not intended for human consumption at normal ambient temperature conditions (-20 °C to +50 °C) within the following limits:
-- from 800 mm up to 3000 mm nominal diameter and;
-- up to a maximum overall length of 6 times the nominal diameter;
-- for liquids with a maximum density of up to 1,1 kg/l and;
-- with an operating pressure (Po) of maximum 50 kPa (0,5 bar(g)) and minimum - 5 kPa (-50 mbar(g)) and;
-- for double skin tanks with a vacuum leak detection system where the kinematic viscosity does not exceed 5 × 10^-3 m²/s.

Two tank types are distinguished:
-- Type S: Single skin;
-- Type D: Double skin.

Tanks designed to this document allow for an earth cover of up to 1,5 m. If there are imposed traffic loads or a greater earth cover, calculation will occur.

This document is not applicable to tanks installed in industrial processes or in petrol stations, nor to loads and special measures necessary in areas subject to risk of earthquakes and/or to flooding.

Cross References:
EN 10204:2004
EN 10025-2:2004
EN 1090-2:2008+A1:2011
EN 13160-3
EN 13160-2
EN ISO 898-1
EN ISO 15607
EN ISO 14731
EN 13160-1
EN ISO 15614-1
EN ISO 15609-1
EN 10028-7
CLC/TR 60079-32-1
EN 10028-2
EN 13160-4
EN 10088-1
EN ISO 15609-1
EN 10051
EN 12285-1:2019
EN ISO 9606-1
EN ISO 8501-1


All current amendments available at time of purchase are included with the purchase of this document.