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National Technical Approval
No. Z-40.21-432
II
SPECIAL PROVISIONS
1
Object of approval and scope of application
(1) The object of this National Technical Approval is factory-produced containers
designated "UNI-Tank 1500 I" as described in Annex 1, consisting of a polyethylene
(PE-HD) interior container produced in a blow-moulding process and an external container
made of galvanised sheet steel (collecting container). The containers are manufactured
with a capacity of 1500 litres. The containers stand on steel feet. Four connection points
are located on top of the container for filling, airing, de-airing, protection against overfilling,
and for emptying and fill-level monitoring.
(2) The containers may only be placed in rooms inside buildings, but not in areas subject to
a risk of explosion classed as Zones 0 and 1. In high-water or flood areas, the containers
must be positioned where they cannot be reached by the water.
(3) At a temperature of 30 °C of the stored liquids – whereby the temperature may exceed
this temperature by 10 K for short periods (e.g. due to higher temperature of the stored
liquids during filling) – the containers may be used for the stationary, non-pressurised
storage of the following liquids that are hazardous to water, provided that stored liquids are
not mixed:
1. Heating oil EL grade pursuant to DIN 51603-1
2. Heating oil DIN 51603-6 grade EL A Bio 5 to Bio 15 pursuant to DIN SPEC 51603-6
with added FAME pursuant to DIN EN 14214
only in containers equipped with permeation resistance,
3. Diesel fuel pursuant to DIN EN 590
permeation-resistance,
4. Fatty acid methyl esters pursuant to DIN EN 14214
equipped with permeation-resistance,
5. Lubricating oils, hydraulic oils and heat transfer oils (Q grade), with or without additives,
flashpoint > 55 °C,
6. Lubricating oils, hydraulic oils, used heat transfer oils (Q grade), flashpoint > 55°C;
operator must be able to document origin and flashpoint,
7. Vegetable oils such as cotton seed oil, olive oil, canola oil, castor oil, wheat oil in any
concentration that are not used as foodstuffs or to produce foodstuffs.
(4) National technical approval is granted without prejudice to inspection or approval
provisos from other areas of law.
(5) This National Technical Approval dispenses with the need to determine suitability
pursuant to § 63 of the German Water Management Act [WHG]
However, the user shall be responsible for checking whether the system as a whole
requires a suitability assessment in accordance with the German Act on Installations
Handling Materials Hazardous to Water, even though this is not required for the object of
approval itself.
(6) The period of validity of this National Technical Approval (see page 1) is based on use in
the sense of installation or erection of the object of approval, not on use in the sense of
subsequent use.
1
DIN 51603-1:2011-09
Liquid fuels – Heating oils – Part 1: Heating oil grade EL, minimum requirements
2
DIN SPEC 51603-6: 2011-06
Liquid fuels – Heating oils - Part 6: Heating oil grade EL A, minimum requirements
3
DIN EN 14214:2014-06
Fuels for motor vehicles – fatty acid methyl esters (FAME) for diesel engines –
requirements and inspection methods
4
DIN EN 590:2014-04
Fuel for vehicles, diesel fuel, requirements and inspection methods
5
German Act to regulate water resources (Water Management Act, WHG) of 31 July 2009 (Federal Law Gazette I, p. 2585
Z58413.15
National Technical Approval
No. Z-40.21-432
2
Provisions for construction products
2.1
General
The containers and their parts must conform to the Special Provisions and the annexes of
this document, as well as the information filed at the Deutsches Institut für Bautechnik.
2.2
Properties and constituents
2.2.1
Materials
Only the materials named in Annex 2 may be used to manufacture the containers.
2.2.2
Design details
The design details of the containers must conform to Annexes 1 and 1.1 as well as to the
data filed at the DIBt.
2.2.3
Stability
When used under the applicable conditions of use, the containers shall be structurally
stable up to an operating temperature of 30°C.
2.2.4
Reaction to fire
The material polyethylene (PE-HD) is normally flammable in the thickness used (class B2
6
pursuant to DIN 4102-1
). For flame-resistance, see section 3 (1).
2.3
Production, packaging, transport, storage and identification
2.3.1
Production
(1) Manufacture must proceed according to the manufacturing description filed with DIBt.
(2) The containers may only be manufactured at the plant named below, on the same
production systems on which the approved containers were assessed during the initial
inspection by the certification agency:
CEMO GmbH
7
Werk3
(3) If the blowing facility undergoes significant changes (e.g. on the extruder, blowing head
or blowing mould), the certification agency must be informed, which then makes a decision
about how to proceed (involvement of the DIBt, special inspections).
(4) The blow-moulded containers may be treated with an inner coating for
permeation-resistance.
2.3.2
Packaging, transport, storage
Packaging, transport and storage shall conform to Annex 3.
2.3.3
Identification
(1) The manufacturer shall identify the containers by applying the German mark of
conformity in accordance with the relevant regulations of the German states. They may
only be marked in this way if the requirements set out in section 2.4 have been satisfied.
6
DIN 4102-1:1998-05
Fire Behaviour of Building Materials and Building Components - Part 1: Building materials;
terms, requirements and inspections
7
The name and address of the company are known to DIBt.
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1
,
2
3
, without additional alternative components;
4
; only in containers equipped with
3
(biodiesel); only in containers
5
for the object of approval.
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National Technical Approval
No. Z-40.21-432
(2) Moreover, the manufacturer must mark the container combination, comprising the
inner container and the collector, visibly and permanently with the following information on
the collector:
-
manufacturing number;
-
date of manufacture;
-
nominal volume of container at an approved fill level (as per ZG-ÜS
-
material (the marking must show the moulding compound used e.g. "PE-HD - Lupolen
4261 AG UV") for inner containers;
-
approved operational temperature;
-
notice about non-pressurised operation;
-
notice "Outdoor installation prohibited";
-
notice "Only for storing substances pursuant to National Technical Approval No.
Z-40.21-432".
(3) The approved fill level must be indicated on the level gauge (maximum fill level mark).
2.4
Certificate of conformity
2.4.1
General
(1) Certification that the containers conform to the provisions of this National Technical
Approval must be carried out for each manufacturing site by means of a certificate of
conformity based on in-house production monitoring, as well as external monitoring on a
regular basis, including an initial inspection of the containers pursuant to the following
provisions.
(2) To obtain the certificate of conformity and the external monitoring, as well as the
associated product inspections, the manufacturer of the containers must make
arrangements with a certification agency recognised for this purpose, as well as a
monitoring agency recognised for this purpose.
(3) The manufacturer shall label the construction products with the German mark of
conformity, specifying their use, as a declaration that a certificate of conformity has been
issued.
(4) A copy of the certificate of conformity granted by the certification agency shall be
submitted to the Deutsches Institut für Bautechnik (DIBt). A copy of the initial inspection
report shall also be submitted to the Deutsches Institut für Bautechnik (DIBt).
2.4.2
In-house production monitoring
(1) In-house production monitoring must be set up and carried out in each production
factory. In-house production monitoring means the continuous monitoring of production by
the manufacturer with the aim of ensuring that the containers produced by the
manufacturer conform to the provisions of this National Technical Approval.
(2) The in-house factory production monitoring must include at least the inspections listed
in Annex 4.
(3) The results of in-house production monitoring shall be recorded and evaluated. These
records shall contain the following data, as a minimum:
-
Designation of the construction product and/or source material;
-
Type of monitoring or inspection;
8
ZG-ÜS:Approval Principles for Safety Mechanisms in Tanks and Pipelines – Overfill Safety Devices, As at: July
2012
Z58413.15
National Technical Approval
No. Z-40.21-432
-
Date of manufacture and of inspection of the construction product and/or source
material, or its components;
-
Result of monitoring and inspections and comparison with requirements;
-
Signature of the person in charge of in-house production monitoring.
(4) The records must be preserved for at least five years and submitted to the external
monitoring agency. They shall be submitted to the Deutsches Institut für Bautechnik and,
on request, to the most senior responsible building control authority.
(5) In the event that test results are unsatisfactory, the manufacturer shall take the
necessary remedial action immediately. Products that do not meet the requirements must
be handled in such a way that they cannot be confused with compliant products. After the
defect has been corrected, the inspection in question shall be repeated immediately, as far
as technically possible.
2.4.3
Third-party monitoring
(1) The in-house production monitoring in each production factory must be verified by an
external body in accordance with Annex 4, section 2 (2) on a regular basis, however at
least twice annually.
(2) An initial inspection of the containers pursuant to Annex 4, section 2 (1) shall be
performed within the framework of third-party monitoring. Furthermore, samples may be
taken for random tests. Sampling and inspections are the responsibility of the recognised
monitoring agency. If the inspections in respect of suitability for use – on which National
Technical Approval is based – are performed on samples officially taken from ongoing
production, these inspections shall replace the initial inspection.
(3) The results of certification and third-party monitoring shall be kept for a minimum period
of five years. They must be submitted by the certification/monitoring agency to the
Deutsches Institut für Bautechnik and to the most senior competent building monitoring
agency, if requested.
3
Provisions for drafting and dimensioning
(1) The containers pursuant to this National Technical Approval (consisting of inner and
outer containers) are equipped to resist fire without becoming unsealed for 30 minutes
inside buildings that conform to the requirements of the building code for heating and
heating oil storage spaces.
(2) The conditions for installing the containers are found in the regulations relating to water,
occupational safety and the building code.
4
Provisions for implementation
4.1
General
(1) Installation and erection of the containers shall be entrusted only to companies that are
specialist firms in these activities as per § 3 of the German Act on Installations Handling
9
Materials Hazardous to Water
, unless these activities have been exempted from the
obligation to employ a specialist company by German state regulations, or the
manufacturer of the containers performs these activities with its own specialist personnel.
(2) Containers damaged during transport or installation shall not be used if the damage
compromises the seal or structural stability of the containers. Repair of containers
(inner/outer container) is not permitted.
9
German Act on Installations Handling Materials Hazardous to Water, dated 31 March 2010 (Federal Law Gazette I
p. 377)
Z58413.15
GB
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) in litres;
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