CEMO Z-40.12-227 Manual De Instrucciones página 10

GB
National Technical Approval
No. Z.-40.12-227
(9) This national technical approval dispenses with the need to determine suitability
pursuant to § 63 of the German Water Management Act (WHG)
approval. 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.
(10) The period of validity of this national technical approval (see page 1) refers to use
pertaining to incorporation or installation of the object of approval and not to subsequent
use.
2 Constructed product provisions
2.1. General
The containment units and their parts must conform to the Special Provisions and
annexes of this notification, as well as the information filed with the German Institute for
Structural Engineering (DIBt).
2.2 Properties and composition
2.2.1 Materials
The materials to be used must comply with Annex 2.
2.2.2 Laminate structure
(1) The laminate structure is specified in Annex 2, section 7 as a function of the required
wall thicknesses.
(2) Containment units with dimensions smaller than those in Annex 1 or with dimensions
between two sizes listed herein (intermediate sizes) are approved if they are made with
the wall thickness of the next unit size up.
2.2.3 Design details
Design details should be listed in accordance with Annex 1.1 to 1.6.
2.2.4 Certification of structural stability
Stability of the containment units is to be proven by component tests. The approved
surface loads are:
a) for type 65 and type 150 collection trays:
b) for the other collection trays (with reinforced edges): 7.5 kN/m²
2.2.5 Reaction to fire
(1) The fibreglass-reinforced reactive resin is, in the thicknesses occurring in the
application, normally inflammable (class B2 acc. to DIN 4102-1
(2) When filled with storage medium, the part of the collection trays that contains the
liquid remains sealed for 30 minutes in the event of a fire.
2.3 Manufacture, packaging, transport, storage and identification
2.3.1 Manufacture
(1) Manufacture must follow the process filed with the German Institute for Structural
Engineering (DIBt).
(2) The containment units may only be manufactured in the applicant's Weinstadt or
Schnelldorf factories.
2.3.2 Packaging, transport, storage
Packaging, transport and storage must be in accordance with Annex 3, section 2.
6
German Water Management Act (Wasserhaushaltsgesetz), 31 July 2009 (BGBI. I S 2858).
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DIN 4102/111998/05 Behaviour in Fire of Building Materials and Building Parts.
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No. Z.-40.12-227
2.3.3 Identification
The containment units must be marked by the manufacturer with the conformity mark
pursuant to the conformity mark 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.
Moreover, the manufacturer of the containment units must mark them clearly and
permanently with the following details:
- production number,
- Year of manufacture;
- Containment volume (in accordance with section 5.1.3),
- Media group or media list corresponding to section 1 dependent on the glass type and
resin group used
- Load bearing capacity when using grids (pursuant to section 2.2.4)
2.4 Certificate of conformity
2.4.1 General
(1) Each manufacturing facility must confirm that the containment unit conforms with the
provisions of this national technical approval, with a manufacturer's conformity
declaration based on in-house production monitoring and an initial inspection (see
Annex 4, section 2) of the containment unit by an appropriately approved inspection
agency. The manufacturer must declare the conformity of the constructed products by
marking them with the conformity mark specifying their intended purpose.
(2) The manufacturer must also provide a copy of the initial inspection report to the
German Institute for Structural Engineering (DIBt).
2.4.2 In-house production monitoring
(1) In-house production monitoring shall be set up and performed at the production
plant. In-house production monitoring means the continuous monitoring of production by
the manufacturer with the aim of ensuring that the containment units produced by the
manufacturer conform to the provisions of this national technical approval.
(2) The internal production monitoring should include at least the tests listed in Annex 4,
section 1.
(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 constructed product and/or source material,
- Type of monitoring or inspection,
- Date of manufacture and inspection of the 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) Records must be retained for at least five years. They must be submitted to the
Deutsches Institut für Bautechnik and to the most senior competent building monitoring
agency if requested.
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for the object of
2.5 kN/m²
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).
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(5) In the event of unsatisfactory test results, the manufacturer must immediately take
the necessary measures to correct the defect. 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 test in question must be
immediately repeated - to the extent technically possible, and as necessary to prove that
the defect has been corrected.
2.4.3 Initial testing of the containment unit by an approved inspection agency
The tests in Annex 4, section 2 must be carried out as part of the initial inspection.
3 Provisions for drafting and dimensioning
(1) The conditions for installing the containment units are based on the statutory
regulations relating to water, occupational health & safety and construction.
(2) Where grids are used as bearing surfaces they must be chosen so as to ensure that
the material is sufficiently resistant to the intended storage medium.
(3) Rainwater must not get into the containment units.
(4) The containment units must be protected against impact by vehicles, for example by
a protected installation, use of collision guards, or installing in special areas.
4 Provisions for implementation
(1) When incorporating, installing and re-positioning containment units used together to
create larger areas, the operator of a storage system is obliged to commission a
specialist firm, within the meaning of § 3 of the Ordinance on Facilities Dealing with
Substances Hazardous to Water of 31 March 2010 (BGBl. I S. 377). This does not apply
if this type of work has been excepted from the specialist requirement by state
regulations, or the manufacturer of the containment unit uses its own specialist staff to
carry out this work.
(2) Where containment units are put together as surface systems, only the connecting
components delivered with the unit by the manufacturer may be used (see Annex 1.6).
When putting together the individual parts of the connecting components, they must be
connected such that they are impervious to liquids.
(3) When installing or re-positioning individual standing containment units, the operator
of a storage facility is obliged to use only qualified technical personnel (they need not
however belong to a specialist company).
(4) The containment units must be installed on a level, rigid surface or a carefully
compacted, fixed support surface (e.g. a continuous 5 cm thick concrete or asphalt
layer).
(5) Steps to remedy damage should be made in consultation with an external expert in
water legislation or with the manufacturer's own expert.
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5 Provisions for use, maintenance, servicing, inspection
5.1 Use
5.1.1 General
(1) It should be noted that the containment units are only to be used for their intended
purpose.
(2) When using the containment units, it must be ensured that the approved
containment volume will not be exceeded if a container/vessel leaks into or onto the unit.
For containment units which can be used without grids, the remaining residual volume of
the unit with incorporated containers and an ullage of 2 cm should be taken into account.
(3) The content of the largest container may not exceed the permitted volume and the
total content of the containers stored in the containment unit must not be more than ten
times the permitted containment volume. If the storage of substances hazardous to water
is permitted in other water protection areas, the sump pallet in place there must be able
to collect the entire capacity of the installed containers.
(4) Containers/vessels containing substances hazardous to water with different
compositions and properties may only be placed in a shared containment unit if it is
certain, or can be proven, that the materials will not react dangerously with each other in
the event of a leak.
(5) When storing containers/vessels made from different materials together, it must be
ensured that in the event of a leak, the material of nearby containers/vessels cannot be
corroded by the leaking substance.
(6) When containers/vessels are being used for filling (e.g. drums with a tap), the
handling/filling area must also be protected by the containment unit. Filling devices must
not extend beyond the edge of the containment unit.
(7) When using containers/vessels supported on feet, or with high surface loading on
their storage surface, load distribution measures should be implemented where
necessary.
(8) Containers/vessels must be installed such that the containment unit remains visible,
and accessible enough to be checked.
(9) Vessels may be stacked if permitted under approved transport regulations. However,
stacks may not exceed 1.2 m in height.
(10) Approved loads for individual containment units are stipulated in section 2.2.4.
(11) The walls of containment units must not be subject to any external loads (except
from accessories under this national technical approval, and from fluid in the event of a
leak).
(12) Re-positioning containment units which are loaded with containers/vessels is not
permitted.
5.1.2 Stored liquids
(1) The containment units may only be used with containers/vessels storing liquids in
accordance with sections 1(5) and 1(6). Glass types and resin groups shall be selected in
accordance with Annex 2, section 5 and/or media lists 40-2.1.1 and 40-2.1.2.
(2) Containment units used together as surface systems may only be used with
containers storing the liquids in (1) above if the connecting components are chemically
resistant to the liquids being stored.
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