GRP tanks and vessels for use above ground - Part 3: Design and work-manship

This European Standard gives requirements for the design, fabrication, inspection, testing and verification of GRP tanks and vessels with or without thermoplastic lining for storage or processing of fluids, factory made or site built, non pressurised or pressurised up to 10 bar, for use above ground.
The terms vessels and tanks as used in this European Standard includes branches up to the point of connection to pipework or other equipment by bolting and supports, brackets or other attachments bonded directly to the shell. In addition to the definitive requirements, this European Standard also requires the items in clause 5 to be fully documented.
This European Standard covers vessels and tanks subject to temperatures between - 40 °C and + 120 °C.
NOTE   It is possible that future advances in resin technology would allow tanks and vessels to be considered for operating temperatures above + 120 °C. Should such a situation arise and a manufacturer wishes to take advantage of such developments then all other requirements of the standard shall be maintained and such tanks and vessels shall only be designed in accordance with the advanced design method given in 7.8.2.
Excluded from this European Standard are:
3 Tanks and vessels for the transport of fluids;
3 Underground storage tanks;
3 Spherical vessels;
3 Vessels and tanks of irregular shape;
3 Tanks and vessels with double containment;
3 Tanks and vessels which are subject to the risk of explosion, or failure of which may cause an emission of radioactivity;
3 Specification for fibre reinforced cisterns of one piece and sectional construction for the storage, above ground, of cold water. (see prEN 13280)

Oberirdische GFK-Tanks und -Behälter - Teil 3: Auslegung und Herstellung

Diese Europäische Norm enthält Anforderungen an die Auslegung, Fertigung und Prüfung sowie die Nachweise für oberirdische GFK-Tanks- und -Behälter mit oder ohne thermoplastische Auskleidung, die im Werk oder auf der Baustelle gefertigt und drucklos oder bis zu 10 bar druckbeaufschlagt sind und zur Lagerung oder Verarbeitung von Fluiden dienen.
Die Begriffe Behälter und Tank im Sinne der vorliegenden Europäischen Norm umfassen auch Stutzen bis zur Verbindung mit Rohrleitungen oder anderen Anlagenteilen, wie Stützen, Halterungen und andere Anbauteile, die unmittelbar mit der Schale verbunden sind. Diese Europäische Norm verlangt neben den festgelegten Anforderungen auch, dass die in Abschnitt 5 angegebenen Unterlagen vollständig dokumentiert werden.
Die vorliegende Europäische Norm gilt für Behälter und Tanks, die Temperaturen zwischen - 40 und + 120 °C ausgesetzt sind.
ANMERKUNG   Es ist möglich, dass auf Grund der Entwicklung auf dem Gebiet der Harztechnologie Tanks und Behälter zukünftig für Betriebstemperaturen über + 120 °C geeignet sind. Tritt diese Situation ein und ein Hersteller will sich diese Entwicklungen zu Nutze machen, so haben alle anderen Anforderungen der Norm weiterhin Gültigkeit, die Konstruktion der betreffenden Tanks und Behälter muss jedoch nach dem unter 7.8.2 aufgeführten Verfahren erfolgen.
Die vorliegende Europäische Norm gilt nicht für:
-   Tanks und Behälter für den Transport von Fluiden;
-   unterirdische Lagertanks;
-   kugelförmige Behälter;
-   Tanks und Behälter mit unregelmäßiger Form;
-   Tanks und Behälter mit doppelter Sicherheitshülle;
-   Tanks und Behälter, die bei Explosion oder Undichtheit die Emission radioaktiver Strahlungen zur Folge haben können;
-   einteilige und mehrteilige oberirdische faserverstärkte Tanks für die Lagerung von Kaltwasser (siehe prEN 13280).

Réservoirs et récipients en PRV pour applications hors sol - Partie 3 : Conception et exécution

La présente Norme européenne spécifie les exigences concernant la conception, la fabrication, le contrôle,
les essais et la vérification des réservoirs et des récipients en PRV avec ou sans revêtement en
thermoplastique, pour applications hors sol, destinés au stockage ou au traitement de fluides, fabriqués en
atelier ou construits sur site, non soumis à pression ou soumis à une pression allant jusqu’à 10 bar.
Les termes récipients et réservoirs, tels qu’ils sont utilisés dans la présente Norme européenne, incluent les
tubulures jusqu’au point de raccordement à la tuyauterie ou à un autre équipement par boulonnage et les
supports, consoles ou autres attaches fixés directement sur l’enveloppe. Outre les exigences qui sont
imposées, la présente Norme européenne exige également que les points de l’Article 5 soient complètement
documentés.
La présente Norme européenne couvre les réservoirs et les récipients soumis à des températures comprises
entre – 40 °C et + 120 °C.
NOTE Il est possible que les futurs progrès dans le domaine de la technologie des résines permettent d’envisager
l’utilisation de réservoirs et de récipients à des températures de service supérieures à + 120 °C. Si une telle situation
devait se présenter et qu’un fabricant souhaite profiter de tels développements, alors toutes les autres exigences de la
norme doivent être maintenues et de tels réservoirs et récipients doivent être conçus uniquement conformément à la
méthode de conception avancée donnée en 7.8.3.
Sont exclus de la présente Norme européenne :
- les réservoirs et récipients destinés au transport des fluides ;
- les réservoirs de stockage, enterrés ;
- les récipients sphériques ;
- les récipients et réservoirs de forme irrégulière ;
- les réservoirs et récipients à double enveloppe ;
- les réservoirs et récipients qui sont soumis à un risque d’explosion ou dont la défaillance risque de causer
une émission radioactive ;
- la spécification relative aux citernes renforcée

Nadzemni rezervoarji iz armiranega poliestra - 3. del: Konstruiranje in izdelava

General Information

Status
Withdrawn
Publication Date
21-Aug-2008
Withdrawal Date
13-Jun-2010
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
10-Jun-2010
Due Date
03-Jul-2010
Completion Date
14-Jun-2010

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Nadzemni rezervoarji iz armiranega poliestra - 3. del: Konstruiranje in izdelavaOberirdische GFK-Tanks und -Behälter - Teil 3: Auslegung und HerstellungRéservoirs et récipients en PRV pour applications hors sol - Partie 3 : Conception et exécutionGRP tanks and vessels for use above ground - Part 3: Design and work-manship23.020.10UH]HUYRDUMLStationary containers and tanksICS:Ta slovenski standard je istoveten z:EN 13121-3:2008SIST EN 13121-3:2008en,fr,de01-oktober-2008SIST EN 13121-3:2008SLOVENSKI
STANDARD



SIST EN 13121-3:2008



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13121-3June 2008ICS 23.020.10 English VersionGRP tanks and vessels for use above ground - Part 3: Designand workmanshipRéservoirs et récipients en PRV pour applications hors sol -Partie 3: Conception et fabricationOberirdische GFK-Tanks und -Behälter - Teil 3: Auslegungund HerstellungThis European Standard was approved by CEN on 21 April 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13121-3:2008: ESIST EN 13121-3:2008



EN 13121-3:2008 (E) 2 Contents Page Foreword.6 Introduction.7 1 Scope.8 2 Normative references.8 3 Terms and definitions.10 4 Symbols and abbreviations.11 5 Information and requirements to be supplied and to be documented.14 5.1 General.14 5.2 Information to be obtained by the manufacturer.14 5.3 Information to be prepared by the manufacturer.14 5.4 Final documentation.15 6 Material.15 6.1 General.15 6.2 Chemical protective barrier.15 6.3 Flammability.16 6.4 Electrical resistivity.16 7 Mechanical properties.17 7.1 General.17 7.2 Heat deflection temperature.17 7.3 Laminate construction.17 7.4 Lamina thickness.19 7.5 Laminate properties.19 7.6 Inter-laminar shear strength.19 7.7 Peel strength.20 7.8 Selection of physical properties of materials and allowable design factors.20 8 Determination of design strain and loadings.25 8.1 General.25 8.2 Allowable design strains.25 8.3 Laminate design loadings.26 8.4 Laminate design.26 8.5 Laminate thickness.27 9 Design.28 9.1 Introduction.28 9.2 Determination of external loads.29 9.3 Drawings and design calculations.30 9.4 Design details.30 10 Design analysis.31 10.1 Symbols and units.31 10.2 Vertical vessels or tanks, cylinders under loads (t < 0,01 D).32 10.3 Cylindrical shells subject to compressive loadings — critical buckling criteria.34 10.4 Conical shells.39 10.5 Dished end.45 10.6 Flat circular ends.47 10.7 Circumferential seams.58 10.8 Openings, branches and compensating laminate.61 10.9 Flat panels.70 SIST EN 13121-3:2008



EN 13121-3:2008 (E) 3 10.10 Rectangular tanks.81 10.11 Horizontal vessels.83 11 Bolted flange connections.99 11.1 General.99 11.2 Full faced flanges (with full faced gaskets) design.106 11.3 Stub flange design with metallic backing ring.110 11.4 Preformed flanges.113 11.5 Butt and strap jointed flanges.114 11.6 Stub flange design with non-metallic backing ring.114 12 Supports.115 12.1 General.115 12.2 Vertical tanks.115 12.3 Supports and mountings for vessels.115 12.4 Seismic loading.121 12.5 Design calculation for tank and vessel anchorage.121 13 Structures and fittings.123 13.1 General.123 13.2 Internal structures and fittings.123 13.3 External structures and fittings.123 13.4 Lifting devices.123 14 Local load analysis.124 14.1 General.124 14.2 Symbols.124 14.3 Calculation of force and moment resultants.124 14.4 Calculation of laminate strains.124 15 Quality control.125 15.1 General.125 15.2 Works requirements.125 15.3 Documentation to be prepared by the manufacturer.126 15.4 Manufacture.133 15.5 Inspection and testing after completion of fabrication.135 15.6 Experimental design verification method.136 16 Site built tanks and vessels.138 16.1 General.138 16.2 Design.138 16.3 Manufacture.139 16.4 Inspection.139 17 Marking.139 Annex A (informative)
Product testing for volume or batch production process.141 A.1 Initial type testing (ITT).141 A.2 Testing of samples.141 A.3 Inspection and test records.143 Annex B (informative)
Derivation of laminate properties from lamina properties.144 B.1 General.144 B.2 Lamina/laminate thickness.144 B.3 Laminate modulus.145 B.4 Determination of laminate flexural stiffness.146 B.5 Determination of laminate strains from load resultants.146 Annex C (normative)
Pressure and leak testing.148 C.1 General.148 C.2 Open top tanks and containers.148 C.3 Closed tanks and vessels.149 C.4 Hydraulic pressure test.149 Annex D (normative)
Methods of tests.150 SIST EN 13121-3:2008



EN 13121-3:2008 (E) 4 D.1 General.150 D.2 Loss on ignition.151 D.3 Tensile strength of thermoplastics welds.151 D.4 Bend tests for welds in thermoplastics.151 D.5 Ultimate tensile unit strength of laminates.153 D.6 Unit tensile modulus of laminates.154 D.7 Inter laminar shear strength of laminates.156 D.8 Lap shear strength of bond between thermoplastics lining and laminate or between laminates.157 D.9 Peel strength of bond between laminate layers.160 D.10 Flexural short term creep test.160 D.11 Barcol hardness.163 D.12 Determination of electrical resistivity.163 D.13 Residual styrene polyester resins.163 D.14 Acetone test polyester resins.163 D.15 Spark testing of thermoplastics welds.163 D.16 Long term flexural creep test.164 D.17 Hardness of rubber.166 D.18 Flash point test.166 D.19 Heat deflection temperature test.166 D.20 Flexural strength of laminate.166 Annex E (normative)
Approval testing of laminators.167 E.1 General.167 E.2 Assessment of the laminator.167 E.3 Procedure.167 E.4 Test pieces.168 E.5 Evaluation of test pieces.168 E.6 Minimum requirements for acceptance.169 E.7 Test certificate.169 E.8 Validity and renewal.169 E.9 Range of approval.170 Annex F (normative)
Approval testing of welders.171 F.1 General.171 F.2 Test requirements.172 F.3 Procedure.172 F.4 Test pieces.173 F.5 Evaluation of test pieces.173 F.6 Minimum requirements for acceptance.174 F.7 Test certificate.174 F.8 Validity and renewal.174 F.9 Range of approval.174 Annex G (informative)
Loading from local loads - Methods of calculation.176 G.1 General.176 G.2 Local loads on pressure vessel shells.176 Annex H (informative)
Design method for filament wound laminates.203 H.1 General.203 H.2 Filament wound laminate properties.204 H.3 Design methods.206 H.4 Axial instability.209 Annex I (normative)
Pre-moulded flanges technical requirements.215 I.1 General.215 Annex J (informative)
Shells subjected to wind loading value from metallic codes.217 J.1 Symbols.217 Annex K (informative)
Horizontal vessel design.222 K.1 General.222 K.2 Strain modification for vessels on rigid saddle support.222 SIST EN 13121-3:2008



EN 13121-3:2008 (E) 5 K.3 Horizontal vessels supported on two longitudinal continuous beams.226 Annex ZA (informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 97/23/EC.231 Bibliography.232
SIST EN 13121-3:2008



EN 13121-3:2008 (E) 6 Foreword This document (EN 13121-3:2008) has been prepared by Technical Committee CEN/TC 210 “GRP tanks and vessels”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2008, and conflicting national standards shall be withdrawn at the latest by December 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EC Directive(s). For relationship with EC Directive(s), see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
SIST EN 13121-3:2008



EN 13121-3:2008 (E) 7 Introduction EN 13121 consists of the following parts under the general title "GRP tanks and vessels for use above ground":  Part 1: Raw materials — Specification conditions and acceptance conditions  Part 2: Composite materials — Chemical resistance  Part 3: Design and workmanship (this standard)  Part 4: Delivery, installation and maintenance These four parts together define the responsibilities of the tank or vessel manufacturer and the materials to be used in their manufacture. Part 1 of this standard specifies the requirements and acceptance conditions for the raw materials - resins, curing agents, Thermoplastics linings, reinforcing materials and additives. These requirements are necessary in order to establish the chemical resistance properties determined in Part 2 and the mechanical, thermal and design properties determined in Part 3. Together with the workmanship principles determined in Part 3, requirements and acceptance conditions for raw materials ensure that the tank or vessel will be able to meet its design requirements. Part 4 of this standard specifies recommendations for delivery, handling, installation and maintenance of GRP tanks and vessels. The design and manufacture of GRP tanks and vessels involve a number of different materials such as resins, thermoplastics and reinforcing fibres and a number of different manufacturing methods. It is implicit that tanks and vessels conforming to this standard should be made only by manufacturers who are competent and suitably equipped to fulfil all requirements, using materials manufactured by competent and experienced material manufacturers. Metallic vessels, and those manufactured from other isotropic, homogeneous materials, are conveniently designed by calculating permissible loads based on measured tensile and ductility properties. GRP, on the other hand, is a laminar material, manufactured through the successive application of individual layers of reinforcement. As a result there are many possible combinations of reinforcement type that will meet the structural requirement of any one-design case. This allows the designer to select the laminate construction best suited to the available manufacturing facilities and hence be most cost effective. In considering a layered GRP structure it is assumed that it is the glass reinforcement that provides the stiffness and strength required to resist mechanical loadings. Also, since the quantity of glass reinforcement is most readily assessed by weight, the weight of glass per unit area (m) is used instead of thickness in determining mechanical properties, thus the concepts of load and modulus are replaced by unit strength (U) and unit modulus (X), these being defined in Table 1. NOTE To convert a un
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