1、BSI Standards PublicationStatic thermoplastic tanks for the above ground storage of chemicals Blow moulded or rotationallymoulded polyethylene tanks Requirements and test methodsBS EN 13575:2012National forewordThis British Standard is the UK implementation of EN 13575:2012. It super-sedes BS EN 135
2、75:2004 which is withdrawn.The UK participation in its preparation was entrusted to Technical CommitteePRI/62, Static thermoplastics tanks.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary p
3、rovisions of acontract. Users are responsible for its correct application. The British Standards Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 72662 0ICS 23.020.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was publish
4、ed under the authority of the StandardsPolicy and Strategy Committee on 31 May 2012.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 13575:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13575 April 2012 ICS 23.020.10 Supersedes EN 13575:2004English Versio
5、n Static thermoplastic tanks for the above ground storage of chemicals - Blow moulded or rotationally moulded polyethylene tanks - Requirements and test methods Rservoirs statiques thermoplastiques destins au stockage non enterr de produits chimiques - Rservoirs en polythylne mouls par soufflage ou
6、par rotation - Exigences et mthodes dessai Ortsfeste Tanks aus Thermoplasten fr die oberirdische Lagerung von Chemikalien - Tanks aus blas- oder rotationsgeformtem Polyethylen - Anforderungen und Prfverfahren This European Standard was approved by CEN on 25 February 2012. CEN members are bound to co
7、mply 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 CEN-CENEL
8、EC 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the
9、same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
10、 Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and
11、 by any means reserved worldwide for CEN national Members. Ref. No. EN 13575:2012: EBS EN 13575:2012EN 13575:2012 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions . 54 Requirements for materials 54.1 Tank . 54.2 Material . 55 Design requirements . 75.1 General 7
12、5.2 Filling systems . 75.3 Venting systems 75.4 Suction/outlet system . 75.5 Overfill alarm / overfill prevention system 75.6 Contents gauge connection facility . 76 Requirements for tanks . 77 Marking, transport, handling and installation of tanks 107.1 Marking . 107.2 Transport and handling . 107.
13、3 Installation 10Annex A (informative) Creep curves . 11Annex B (normative) Test methods for determination of material characteristics 13B.1 Density 13B.2 Melt flow rate 13B.3 Tensile properties 13B.4 Chemical resistance 14B.5 Weather resistance 16Annex C (normative) Test methods for determination o
14、f tank characteristics 17C.1 Capacity 17C.2 Visual inspection . 17C.3 Mass 17C.4 Wall thickness 17C.5 Impact . 17C.6 Impact strength at low temperature . 17C.7 Elongation or deformation 18C.8 Pressure resistance . 19C.9 Leak tightness 20Annex D (informative) Evaluation of conformity 21D.1 General 21
15、D.2 Type testing 21D.3 Factory production control . 22Annex E (informative) A-deviations . 24Bibliography 27BS EN 13575:2012EN 13575:2012 (E) 3 Foreword This document (EN 13575:2012) has been prepared by Technical Committee CEN/TC 266 “Thermoplastic static tanks”, the secretariat of which is held by
16、 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 October 2012, and conflicting national standards shall be withdrawn at the latest by October 2012. This document supersedes EN 13575:2004. The
17、 main changes compared to the previous edition are: a) Clause 1, Scope: the field of application has been extended to tanks with a volume of 400 l to 10 000 l; b) Clause 2, Normative references has been updated; c) Clause 6, Evaluation of conformity has been revised and moved to Annex D in its entir
18、ety; d) B.3. Tensile properties has been revised; e) B.4, Chemical resistance has been revised with reference to EN ISO 23667; f) C.8: For the pressure resistance test a support framework for tanks 3 500 l is permitted; g) Annex D has been deleted; h) Annex E has been deleted; i) The new Annex D “Ev
19、aluation of conformity“ has been added; j) The new Annex E “A-deviations“ has been added due to the national regulations of the Netherlands. 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 resp
20、onsible for identifying any or all such patent rights. 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finl
21、and, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 13575:2012EN 13575:2012 (E) 4 1 Scope This European Standard spec
22、ifies requirements for materials, physical properties and performance for blow moulded and rotationally moulded polyethylene single tanks, with or without reinforcement, for the above ground storage of chemical liquids having a maximum specific gravity of 1 400 kg/m3except water and those liquids de
23、alt with by EN 13341. It is only applicable to static blow moulded or rotationally moulded polyethylene tanks, which are subjected to atmospheric pressures but not subject to any external loading and having a volume of 400 l to 10 000 l. Except for periodic temperature fluctuation their normal opera
24、ting temperature does not exceed 25 C. Tanks according to this European Standard are expected to have a period of intended use of 10 years. This European Standard specifies test methods and factory production control tests as well. NOTE National and/or international regulations above and beyond the
25、requirements of this standard may apply to the storage of liquids and the installation of tanks. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited ap
26、plies. For undated references, the latest edition of the referenced document (including any amendments) applies. 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 (IS
27、O 179-1:2000) EN ISO 293:2005, Plastics Compression moulding of test specimens of thermoplastic materials (ISO 293:2004) EN ISO 527-2:1996, Plastics Determination of tensile properties Part 2: Test conditions for moulding and extrusion plastics (ISO 527-2:1993 including Corr 1:1994) EN ISO 1133, Pla
28、stics Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics (ISO 1133:2005) EN ISO 1183-1, Plastics Methods for determining the density of non-cellular plastics Part 1: Immersion method, liquid pyknometer method and titration method (ISO 1183-1:2004) EN
29、 ISO 1183-2, Plastics Methods for determining the density of non-cellular plastics Part 2 Density gradient column method (ISO 1183-2:2004) EN ISO 1872-2:2007, Plastics Polyethylene (PE) moulding and extrusion materials Part 2: Preparation of test specimens and determination of properties (ISO 1872-2
30、:2007) 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 lamps (ISO 4892-2:2006) EN ISO 23667:2007, Packaging Transport packaging for dangerous g
31、oods Rigid plastics and plastics composite IBCs Compatibility testing (ISO 23667:2007) BS EN 13575:2012EN 13575:2012 (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 which
32、 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 reinforcement constitutive el
33、ement of a tank, which contributes to its mechanical stability 3.5 regrind material prepared from clean, rejected, unused tanks, including trimmings from the production of tanks that will be reprocessed in a manufacturers plant after having been previously processed by the same manufacturer in the p
34、roduction 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 t
35、o CLC/TR 50404 are considered. 4.2 Material The raw materials and samples taken from the tanks shall be tested and fulfil the requirements according to Table1. The proportion of the regrind from the same material shall not exceed 50 % for blow-moulded tanks. Regrind shall not be used for rotationall
36、y moulded tanks. If required by national authorities, creep curves similar to those given in Annex A shall be used to determine the long-term behaviour of the material. If required by national authorities, the impact strength at low temperature shall be determined. When tested in accordance with C.6
37、, the impact strength of a sample, cut from the tank, measured at - 18 C shall be at least 75 % of the impact strength measured at (23 2) C. BS EN 13575:2012EN 13575:2012 (E) 6 Table 1 Material requirements Material type Property Requirement Test method Blow-moulded polyethylene Densitya shall not b
38、e less than 938 kg/m3B.1 Melt flow ratebshall be less than 12 g/10 min at 190 C, 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 Tensile strength ctensile strength at yield shall not be less than 21 MPa
39、 elongation at yield shall not be more than 15 % elongation at break shall not be less than 200 % B.3 Rotationally moulded polyethylene Densityashall not be less than 930 kg/m3B.1 Melt flow ratebshall be 4,0 g/10 min 3,0 g/10 min at 190 C, 2,16 kg maximum variation of the melt flow rate of the mould
40、ed tank shall not be greater than 20 % of the value determined on the raw material B.2 Tensile strength ctensile 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 Blow-moulded polyethylene and rotation
41、ally moulded polyethylene Resistance against chemical liquidscAbsorption behaviour mass alteration shall be less than 10 %. B.4.3 Stress cracking resistance either: After 28 days immersion the tensile strength shall not be less than 85 % of the reference sample without pin impression or: - the time
42、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.4.4.2 B.4.4.3 B.4.4.4 Degradation test 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
43、B.3. B.4.5 Weather resistancec For external installations after exposure to global irradiance of 34 GJ/m2(corresponding to an irradiance of 2,3 GJ/m for the band from 300 nm to 400 nm ) the elongation at break shall be greater than 50 % of the initial value. For internal installations the elongation
44、 at break after exposure to global irradiance of 3,4 GJ/m2(corresponding to an irradiance of 0,23 GJ/m for the band from 300 nm to 400 nm) shall be greater than 50 % of the initial elongation at break. NOTE The manufacturer should ensure that changing the additive package does not decrease weather r
45、esistance. B.5 aTest to be carried out on raw material. bTest to be carried out on raw material and on tank. cTest to be carried out on tank. BS EN 13575:2012EN 13575:2012 (E) 7 5 Design requirements 5.1 General The requirements according to 5.2 to 5.6 are minimum requirements. Additionally openings
46、, e.g. manholes or inspection hatches, are recommended. 5.2 Filling systems In the case of direct fill, the opening for filling shall be a minimum of 38 mm in diameter and shall be covered with a cap or lid. 5.3 Venting systems All tanks shall be equipped with venting facilities. The cross sectional
47、 area of the venting shall not be less than the cross sectional area of the filling system. The cross sectional area shall be sufficient to avoid either over- or under-pressure. 5.4 Suction/outlet system Tanks shall be equipped with an opening permitting the safe and reliable connection of withdrawa
48、l systems. All fittings shall be corrosion resistant. The tank outlet may be installed above or below the liquid level. 5.5 Overfill alarm / overfill prevention system All tanks, which are filled by fixed pipework, shall have on the top of the tank a provision to fit an appropriate overfill alarm/overfill prevention system, which in the case of liquid petroleum fuels shall be in accordance with the requirements of EN 13616. 5.6 Contents gauge connection facility If the level of liquid can be seen through the walls o
