SIST EN 13575:2005
(Main)Thermoplastic tanks made from blow or rotational moulded polyethylene - Tanks for the above ground storage of chemicals - Requirements and test methods
Thermoplastic tanks made from blow or rotational moulded polyethylene - Tanks for the above ground storage of chemicals - Requirements and test methods
This document specifies requirements for above ground single static thermoplastic tanks of volume 450 l to 10 000 l, which can be used for the storage of liquids other than water including chemicals classified as dangerous goods.
This document only applies to tanks manufactured by blow moulding or rotational moulding of polyethylene, with or without reinforcements, which are not subjected to pressures exceeding ± 5 kPa (± 0,05 bar). Except for periodic temperature fluctuation their normal operating temperature does not exceed 25 °C.
This document only applies to tanks with a maximum lifetime of 10 years.
This document specifies permitted materials, performance requirements and test methods and factory production control tests.
This document does not consider wind and snow loads.
NOTE National and/or International regulations above and beyond the requirements of this standard may apply to the storage of liquids and the installation of tanks.
Tanks aus Thermoplasten, die aus blas- oder rotationsgeformtem Polyethylen hergestellt wurden - Tanks für die oberirdische Lagerung von Chemikalien - Anforderungen und Prüfverfahren
Diese Europäische Norm legt Anforderungen für ortsfeste Tanks aus Thermoplasten mit einem Volumen zwischen 450 l und 10 000 l fest, die in Blas- oder Rotationsformverfahren mit oder ohne Verstärkungen hergestellt wurden für die oberirdische Lagerung von anderen Flüssigkeiten als Wasser, jedoch als gefährliche Güter klassifizierte Chemikalien mit eingeschlossen. Solche Tanks werden keinen Drücken über +/- 0,05 bar ausgezetzt. Ihre normale Betriebstemperatur übersteigt normalerweise nicht 25°C, jedoch können sie zeitweisen Temperaturschwankungen unterworfen sein.
Réservoirs thermoplastiques en polyéthylene moulés par soufflage ou par rotation - Réservoirs destinés au stockage non enterré de produits chimiques - Exigences et méthodes d'essai
La présente Norme européenne spécifie les exigences pour les réservoirs thermoplastiques statiques non enterrés dont le volume est compris entre 450 l et 10 000 l, qui peuvent etre utilisés pour le stockage de liquides autres que l'eau, y compris les produits chimiques classés comme produits dangereux.
La présente norme s'applique uniquement aux réservoirs en polyéthylene fabriqués par extrusion-soufflage ou par rotomoulage, avec ou sans renforts qui ne sont pas soumis a des pressions supérieures a ± 5 kPa (± 0,05 bar). A l'exception des fluctuations périodiques de températures, leur température normale de service ne dépasse pas 25 °C.
La présente norme couvre uniquement les réservoirs ayant une durée de vie maximale de 10 ans.
La présente norme spécifie les matériaux autorisés, les exigences de performance et les méthodes d'essai, ainsi que les essais de contrôle de la fabrication.
NOTE Les réglementations nationales et/ou internationales qui vont au-dela des exigences de la présente norme peuvent s'appliquer au stockage des liquides et a l'installation des réservoirs.
Plastomerni rezervoarji iz polietilena, pihanega ali rotacijsko oblikovanega – Rezervoarji za nadzemno skladiščenje kemikalij – Zahteve in preskusne metode
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Tanks aus Thermoplasten, die aus blas- oder rotationsgeformtem Polyethylen hergestellt wurden - Tanks für die oberirdische Lagerung von Chemikalien - Anforderungen und PrüfverfahrenRéservoirs thermoplastiques en polyéthylene moulés par soufflage ou par rotation - Réservoirs destinés au stockage non enterré de produits chimiques - Exigences et méthodes d'essaiThermoplastic tanks made from blow or rotational moulded polyethylene - Tanks for the above ground storage of chemicals - Requirements and test methods23.020.10UH]HUYRDUMLStationary containers and tanksICS:Ta slovenski standard je istoveten z:EN 13575:2004SIST EN 13575:2005en01-marec-2005SIST EN 13575:2005SLOVENSKI
STANDARD
SIST EN 13575:2005
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13575
October 2004 ICS 23.020.10
English version
Thermoplastic tanks made from blow or rotational moulded polyethylene - Tanks for the above ground storage of chemicals - Requirements and test methods
Réservoirs thermoplastiques en polyéthylène moulés par soufflage ou par rotation - Réservoirs destinés au stockage non enterré de produits chimiques - Exigences et méthodes d'essai
Tanks aus Thermoplasten, die aus blas- oder rotationsgeformtem Polyethylen hergestellt wurden -Tanks für die oberirdische Lagerung von Chemikalien - Anforderungen und Prüfverfahren This European Standard was approved by CEN on 16 August 2004.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36
B-1050 Brussels © 2004 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13575:2004: ESIST EN 13575:2005
EN 13575:2004 (E) 2 Contents Page Foreword.3 1 Scope.4 2 Normative references.4 3 Terms and definitions.5 4 Requirements for materials.5 5 Design requirements.7 6 Sampling and test methods.7 7 Requirements for tanks.9 8 Marking, transport and handling of tanks.11 Annex A (informative)
Creep curves.12 Annex B (normative)
Test methods for determination of material characteristics.14 Annex C (normative)
Test methods for determination of tank characteristics.16 Annex D (normative)
Chemicals to which the standard liquids may be regarded as equivalents.19 Annex E (normative)
Standard liquids for verifying the chemical compatibility of high molecular polyethylene.21
SIST EN 13575:2005
EN 13575:2004 (E) 3 Foreword This document (EN 13575:2004) has been prepared by Technical Committee CEN/TC 266 “Thermoplastic static tanks”, 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 April 2005, and conflicting national standards shall be withdrawn at the latest by April 2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SIST EN 13575:2005
EN 13575:2004 (E) 4 1 Scope This document specifies requirements for above ground single static thermoplastic tanks of volume 450 l to 10 000 l, which can be used for the storage of liquids other than water including chemicals classified as dangerous goods.
This document only applies to tanks manufactured by blow moulding or rotational moulding of polyethylene, with or without reinforcements, which are not subjected to pressures exceeding ± 5 kPa (± 0,05 bar). Except for periodic temperature fluctuation their normal operating temperature does not exceed 25 °C.
This document only applies to tanks with a maximum lifetime of 10 years. This document specifies permitted materials, performance requirements and test methods and factory production control tests. This document does not consider wind and snow loads. NOTE National and/or International regulations above and beyond the requirements of this standard may apply to the storage of liquids and the installation of tanks. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1778, Characteristic values for welded thermoplastic constructions — Determination of allowable stresses and moduli for design of thermoplastic equipment EN 13616; Overfill protection devices for static tanks for liquid petroleum fuels EN ISO 179-1, Plastics - Determination of Charpy impact properties – Part 1: Non-instrumented impact test (ISO 179-1:2000) EN ISO 527–3, Plastics — Determination of tensile properties — Part 3: Test conditions for films and sheets (ISO 527-3:1995) EN ISO 1133, Plastics — Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics (ISO 1133:1997) EN ISO 1183, Plastics — Methods for determining the density of non-cellular plastics EN ISO 1872–2, Plastics — Polyethylene (PE) moulding and extrusion materials — Part 2: Preparation of test specimens and determination of properties - Amendment A1 (ISO 1872-2:1997/AM 1:2000) EN ISO 4892–1, Plastics — Methods of exposure to laboratory light sources — Part 1: General guidance (ISO 4892-1:1999) EN ISO 4892–2, Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc sources (ISO 4892-2:1994) EN ISO 16101:2004, Packaging — Transport packaging for dangerous goods — Plastics compatibility testing (ISO 16101:2003) CLC/TR 50404, Electrostatics – Code of practice for the avoidance of hazards due to static electricity SIST EN 13575:2005
EN 13575:2004 (E) 5 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 tank container for the storage of liquids at atmospheric pressure and which retains its designed shape without any support when empty 3.2 brimful capacity (of a tank) volume of water held by the tank filled through the filling orifice to the point of overflowing 3.3 maximum filling capacity (of a tank) value of 95 % of the brimful capacity 3.4 regrind material prepared from clean rejected unused tanks, including trimmings from the production of tanks, that will be reprocessed in a manufacturer´s plant after having been previously processed by the same manufacturer in the production of tanks 4 Requirements for materials 4.1 Tank Flammable liquids with a flash point > 55 °C may be stored in these tanks without further requirements.
Flammable liquids with a flash point ≤ 55 °C may be only stored in these tanks if the requirements concerning electrostatic behaviour according to CLC/TR 50404 are considered. 4.2 Material The proportion of the regrind from the same material shall not exceed 50 % for blow-moulded tanks. Regrind shall not be used for rotational-moulded tanks.
The raw materials and samples taken from the tanks shall be tested according to Table 1. For initial type test and factory production control see 6.1 and 6.2 respectively. If required, the long-term behaviour of the material should fulfil the creep curves according to Figure A.1 and Figure A.2. If requested, the impact strength at low temperature shall be determined. When tested in accordance with Annex C.6, the impact strength of a sample, cut from the tank, measured at – 8 °C shall be at least 75 % of the impact strength measured at (23 ± 2) °C. Note The material may not turn brittle at low temperature. SIST EN 13575:2005
EN 13575:2004 (E) 6 Table 1 — Material requirements Material type Property Requirement Test method Densitya
shall not be less than 938 kg/m3 B.1 Melt flow rateb shall be less than 12 g/10 min at 190 ºC, 21,6 kg maximum increase of the melt flow rate of the moulded tank shall not be greater than 15 % of the value determined on the raw material B.2
Blow-moulded polyethylene
Tensilec tensile strength at yield shall not be less than 21 MPa elongation at yield shall not be more than 15 % B.3 Densitya shall not be less than 934 kg/m3 B.1 Melt flow rateb shall be 4,0 g/10 min ± 3,0 g/10 min at 190 ºC, 2,16 kg maximum variation of the melt flow rate of the moulded tank shall not be greater than 20 % of the value determined on the raw material B.2 Rotational-moulded polyethylene Tensilec tensile strength at yield shall not be less than 15 MPa elongation at yield shall not be more than 25 % elongation at break shall not be less than 200 % B.3 Resistance against chemical liquidsc
Absorption
behaviour
Degradation
behaviour
Stress crack
resistance mass alteration shall be less than 10 %.
the increase in melt flow rate shall not be more than 30 % reduction in elongation at break shall not exceed 50 % of that measured in B.3.
either: After 28 days immersion the tensile strength shall not be less than 85 % of the reference sample without pin impression or:
the time to 50 % failure shall not be less than 500 h or: the time to failure at reference stress 9 MPa shall not be less than 20 h B.4.2
B.4.4
B.4.3.2
B.4.3.3
B.4.3.4 Blow-moulded polyethylene and rotational-moulded polyethylene Weather resistancec
For outside installations after exposure to total irradiance of 34 GJ/m2 , equivalent to 10 years exposure in a Northern European climate, the elongation at break shall be greater than 50 % of the initial value For inside installations the elongation at break after exposure to total irradiance of 3,4 GJ/m2 , shall be greater than 50 % of the initial elongation at break The manufacturer shall ensure that changing the additive package does not decrease weather resistance B.5 a Test to be carried out on raw material. b Test to be carried out on raw material and on tank. c Test to be carried out on tank. SIST EN 13575:2005
EN 13575:2004 (E) 7 5 Design requirements 5.1 General The requirements according to 5.2 to 5.7 are minimum requirements. Further nozzles, e.g. manhole or nozzle for inspection are allowed. 5.2 Filling systems In the case of direct fill, the aperture for filling shall be a minimum of 38 mm in diameter and shall be covered with a cap or lid. 5.3 Supports Tanks shall be supported according to tank manufacturer’s instructions. 5.4 Venting systems All tanks shall be equipped with venting facilities. The minimum cross sectional area of the venting tube shall not be less than the sum of the smallest cross sectional area of the filling system with a minimum diameter of 38 mm. 5.5 Suction/outlet system Tanks shall be equipped with an opening permitting the safe and reliable connection of withdrawal systems. All fittings shall be corrosive resistant. Class A - outlet installed above the liquid level Class B - outlet installed below the liquid level 5.6 Overflow alarm device All tanks, which are filled by fixed pipework shall have on the top of the tank a provision to fit an overfill prevention system according to EN 13616. 5.7 Contents gauge connection facility If the level of liquid can be seen through the walls of the tank a contents gauge is not required. In all other cases provision shall be made for a contents gauge to be fitted. 6 Sampling and test methods 6.1 Initial type test A minimum of three samples is required. The samples for initial type test shall be randomly selected from the produced batch.
The initial type tests are applicable for a serie of tanks produced by the same mould design. The initial type test shall be carried out on the largest tank of a serie, whereby the tank height may differ by 20 % in a serie. All the other aspects of the design remaining the same. A reduction of mass equal to the mass of the segment of tank is permitted. Samples for initial type test (see Table 2) shall be selected in the following circumstances: 1) when the method of production is altered in such a way as to affect type test performance; SIST EN 13575:2005
EN 13575:2004 (E) 8 2) when the manufacturer changes either the base polymer grade used, or the producer of that material; 3) when wall thickness is decreased or changes are made in the dimensions of height, diameter, length, width or configuration for any one tank capacity. Table 2 indicates tests given in Annexes A and B that shall be used for the initial type tests of the tanks. Table 2 —Initial type tests of the tank Property Test Method Circumstance requirering initial type test in 6.1 Density B.1 Melt flow rate B.2 Tensile
B.3 Resistance against chemicals B.4 Weather resistance B.5 2) Capacity
C.1 Visual inspection C.2 Mass C.3 Wall thickness C.4 Impact C.5 Elongation or deformationa
C.7 Hydrostatic pressure C.8 1); 2); 3) a The choice of the test method depends on the minimum wall thickness, see Table 4 and Table 5.
6.2 Factory production control The tests listed in Table 3 shall be used to determine that satisfactory quality is maintained during production and records should also be maintained within a quality control system. The documentation regarding the factory production control shall be kept for at least 10 years.
Table 3 — Factory production control
Property Test method Test to be carried out on tank and/or raw material
Frequency Tank Once every week on a programme that covers all machines
Melt flow rate B.2 Raw materiala
Every new batch Visual inspection C.2 Tank Every tank Blow-moulded tank Every tank Mass C.3 Rotational-moulded tank Every shot and a tank per shift
Wall thickness C.4 Tank Every tank at its critical points as identified by the manufacturer and an overall test per shift
Leak tightness
C.9 Tank Every tank a This requirement may be waived if the raw material manufacturer supplies a certificate of conformity with each delivery, i.e. a document which certifies that the material supplied is in compliance with the melt flow rate as specified in an agreed supply specification.
SIST EN 13575:2005
EN 13575:2004 (E) 9 7 Requirements for tanks Blow-moulded and rotational-moulded tanks shall be tested according to Table 4 and Table 5 Table 4 — Requirements for blow-moulded polyethylene thermoplastic tanks Property Requirement Test method Capacity The maximum filling capacity , declared by the manufacturer, shall be checked. C.1 Visual inspection There shall exist no bubbles, blisters or other defects in the tank wall which could cause a hole or fracture. C.2 Mass Minimum mass shall be the lightest tank. C.3 For tanks tested in accordance with C.7.1 the minimum wall thickness shall not be less than 2,5 mm. For factory production control the minimum wall thickness shall be the wall thickness of the initial type test. For tanks tested in accordance with C.7.2 the nominal wall thickness shall be: For tank brimful capacity Nominal wall thickness ≥ 450 l < 1 000 l 3,0 mm ≥ 1 000 l < 1 500 l 3,2 mm ≥ 1 500 l < 2 000 l 3,5 mm ≥ 2 000 l < 2 500 l 3,7 mm ≥ 2 500 l < 3 000 l 3,9 mm ≥ 3 000 l < 3 500 l 4,0 mm Wall thickness For tanks with a brimful capacity ≥ 3 500 l the elongation test shall be used for the determination of the wall thickness. A margin of 10 % shall be allowed regarding the nominal wall thickness, whereby the surface of each area shall not exceed 300 mm2. They shall be located a minimum of 50 mm from the bottom of the tank. The manufacturer shall declare in a document, that the margin has no effects on the physical properties of the tank. C.4 Impact The tank shall remain leak tight.
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