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Page 6 of the General Building Inspectorate Approval No. Z-40.11-280 dated 30 January 2001
in rooms of builidings that meet the building inspection requirements for heating and heating
oil storage rooms without developing leaks.
(3) The tanks must be protected against damage from vehicles driving into them,for example by
being placed in a protected area or with a collision protection guard.
4
Implementation specifications
(1) The tanks must be installed according to the specifications of Appendix 6.
(2) Only those companies which are specialist operations as defined in Section 19 1 of the Ger-
man Federal Water Act may be commissioned to to set up and install the tanks and the required
pipeline systems, state regulations regarding the obligations to use specialist companies or the
manufacturer of the tanks carries out these activities with its own expert personnel.
(3) The company carrying out the installation must certify that the installation was carried out
correctly in accordance with the manufacturer's instructions (see Section 5.1.4) as well as the
specifications in Appendix 6.
(4) Measures to remedy damages should be decided in consultation with an expert in water
regulations or the certification agency.
(5) Repair of the tanks must be carried out only by expert personnel of the manufacturer.
5
Specifications for use, maintenance, servicing, und testing
5.1
Use
5.1.1
Tank equipment
(1) The specifications for equipping the tanks are found in the water, building, and work safety
directives. If there are no water or building directives for equipping the tanks, the specifications of
Section 6 of the Technical Regulations for Combustible Liquids (TRbF) 220
(2) The devices must be designed to avoid unacceptably high or negative pressures and unac-
ceptable loads on the tank wall.
(3) The tanks must be equipped with a partial vacuum leak detector which is suitable for the
intended use. The connection for the measuring line must be installed at the highest point of the
monitoring chamber (see Appendix 1.2).
a) Use of a low-vacuum leak detector (alarm triggered at the latest at -30 mbar):
The connection for the suction line is located on the tank cover. In this case, the suction line
must be laid to the lowest point of the monitoring chamber (see Appendix 1.3). In the case of
tank systems as specified in Paragraph (4), the use of low-vacuum leak detectors is permit-
ted only if the difference between the alarm trigger point and the operating negative pressure
of the leak detector amounts to 45 mbar at most.
b) Use of a high-vacuum leak detector (alarm triggered at the latest at -325 mbar):
In this case the leak detector of Type VL 320-420 made by SGB which has the General Build-
ing Inspectorate Approval No. Z-65.22-283 must be used. The connection for the suction line
is located at the level of the measuring line connection. A connection to the lowest point of
the monitoring chamber is not required if this high-vacuum leak detector is used.
7
TRbF 220
August 1994
Technical rules for flammable liquids, stationary tanks made of metallic
and non-metallic materials - General information-
GB
should be followed.
7
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