BS EN 12285-2-2005 Workshop fabricated steel tanks - Horizontal cylindrical single skin and double skin tanks for the aboveground storage of flammable and non-flammable water pollu.pdf

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1、BRITISH STANDARDBS EN 12285-2:2005Incorporating Corrigendum No. 1Workshop fabricated steel tanks Part 2: Horizontal cylindrical single skin and double skin tanks for the aboveground storage of flammable and non-flammable water polluting liquidsThe European Standard EN 12285-2:2005 has the status of

2、a British StandardICS 23.020.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 12285-2:2005This British Standard was published under the autho

3、rity of the Standards Policy and Strategy Committee on 21 February 2005 BSI 20 January 2006ISBN 0 580 45514 9National forewordThis British Standard is the official English language version of EN 12285-2:2005. Together with BS EN 12285-1:2003, it supersedes BS 2594:1975.The UK participation in its pr

4、eparation was entrusted to Technical Committee PVE/21, Fabricated metallic tanks and equipment for storage tanks and filling stations, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standa

5、rds which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This p

6、ublication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible internat

7、ional/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page

8、, pages 2 to 32, an inside back cover and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date Comments15963 Corrigendum No. 120 January 2006 Addition of supersession detailsEUROPEAN STANDARDNORM

9、E EUROPENNEEUROPISCHE NORMEN 12285-2February 2005ICS 23.020.10English versionWorkshop fabricated steel tanks - Part 2: Horizontal cylindricalsingle skin and double skin tanks for the aboveground storage offlammable and non-flammable water polluting liquidsRservoirs en aciers fabriqus en atelier - Pa

10、rtie 2:Rservoirs horizontaux simple et double paroi pour lestockage arien des liquides inflammables et noninflammables polluant leauWerksgefertigte Tanks aus Stahl - Teil 2: Liegendezylindrische ein- und doppelwandige Tanks zuroberirdischen Lagerung von brennbaren undnichtbrennbaren wassergefhrdende

11、n FlssigkeitenThis European Standard was approved by CEN on 17 December 2004.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 biblio

12、graphical references concerning such nationalstandards 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 translationunder the responsibility of a C

13、EN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

14、Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All

15、rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12285-2:2005: EEN 12285-2:2005 (E) 2 Contents Page Foreword4 Introduction .5 1 Scope 6 2 Normative references 7 3 Terms, definitions, symbols and abbreviations .7 3.1 Terms and definitions .7 3

16、.2 Symbols and abbreviations 9 4 Requirements.11 4.1 Designation and purchasers specification 11 4.2 Materials .11 4.3 Design .12 4.4 Tolerances 14 4.5 Shell plate arrangement 14 4.6 Manholes and inspection covers .14 4.7 Structural bolts 16 4.8 Tank fittings, pipes and nozzles.16 4.9 Saddles, suppo

17、rts16 4.10 Lifting lugs18 4.11 Fabrication18 4.12 Dangerous substances .21 4.13 Reaction to fire.21 4.14 Durability 21 5 Testing assessment and sampling methods 21 6 Evaluation of conformity.21 6.1 General21 6.2 Type testing22 6.3 Factory production control (FPC) 23 7 Handling and installation 24 7.

18、1 Handling24 7.2 Installation 24 8 Marking and labelling of the tank.24 8.1 Marking of the tank24 8.2 Tank certificate.25 8.3 Documentation.25 Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU Construction Products Directive26 ZA.1 Scope and relevant charac

19、teristics .26 ZA.2 Procedure(s) for the attestation of conformity of steel tanks.27 ZA.3 CE marking and labelling29 Bibliography 32 EN 12285-2:2005 (E) 3 Figures Figure 1 Example of double skin aboveground tank, symbols.10 Figure 2 Shell plate arrangement for inner and outer skin14 Figure 3 Examples

20、 for manholes15 Figure 4 Example for a saddle support arrangement.16 Figure 5 Example for marking 24 Figure ZA.1 Example CE marking information for a system 3 product31 Tables Table 1 List of dangerous goods the storage of which are not covered by this document 6 Table 2 Tank classes .8 Table 3 Nomi

21、nal wall thickness for inner and outer skin tanks, dished ends and compartment dished end13 Table 4 Dimensions of manhole components.15 Table 5 Dimensions of welded saddles .17 Table 6 Dimensions of saddle components17 Table 7 Loose saddles.17 Table 8 Types of welded joints .19 Table 9 Test pressure

22、 Pt1and Pt221 Table 10 Number of units and compliance criteria for initial and further testing .22 Table 11 Minimum frequency of testing for product testing and evaluation as part of FPC .23 Table ZA.1 Relevant clauses.27 Table ZA.2 Attestation of conformity systems27 Table ZA.3a Assignment of evalu

23、ation of conformity tasks (for system 3).28 Table ZA.3b Assignment of evaluation of conformity tasks (for system 4).28 EN 12285-2:2005 (E) 4 Foreword This document (EN 12285-2:2005) has been prepared by Technical Committee CEN/TC 221 “Shop fabricated metallic tanks and equipment for storage tanks an

24、d for service stations”, 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 August 2005, and conflicting national standards shall be withdrawn at the latest b

25、y November 2006. 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 Construction Products Directive (CPD)1). For the relationship with this Directive, see informative Annex ZA, which i

26、s an integral Part of this document. By application of this document presumption is given, that the Essential Safety Requirements of the CPD are met. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Europea

27、n 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. 1) Directive 89/

28、106/EEC of the European Parliament and the Council of 21 December 1988 on the approximation of the laws of the Member States concerning Construction products (OJEC L 40). EN 12285-2:2005 (E) 5 Introduction This document is part of a family of standards involving shop fabricated tanks and equipment f

29、or storage tanks and for service stations (compare listing below and bibliography). Normal ambient temperatures considered in this document are -20 C to +50 C. Where temperatures are outside this range it could become necessary to consider further requirements. These could include temperature contro

30、l measures or material control (see 4.2.2). CEN/TC 221 Shop fabricated metallic tanks and equipment for storage tanks and for service stations SC 1 Tanks Underground tanks (EN 12285-1) Aboveground tanks (EN 12285-2) SC 2 Equipment Leak detection systems (EN 13160-1 to -7) Overfill prevention devices

31、 (EN 13616) Tank contents gauges (EN 13352) Petrol filling stations (EN 13617-1 to -4, EN 13012, EN 14125) EN 12285-2:2005 (E) 6 1 Scope This document specifies the requirements for metallic shop fabricated cylindrical, horizontal steel tanks, single and double skin for the aboveground storage of wa

32、ter polluting liquids (both flammable and non-flammable) within the following limits: from 800 mm up to 3 000 mm nominal diameter and, up to a maximum overall length of 6 times the nominal diameter and, for liquids with a maximum density of up to 1,9 kg/l and, with an operating pressure (Po) of maxi

33、mum 1,5 bar (abs.) and, where double skin tanks with a vacuum leak detection system are used the cinematic viscosity of the stored media shall not exceed 5 10-3m2/s. This document is applicable for normal ambient temperature conditions (- 20 C to + 50 C). Where temperatures are outside this range, a

34、dditional requirements need to be taken into account. This document is not applicable for the storage of liquids having dangerous good classes listed in Table 1 because of the special dangers involved. Table 1 List of dangerous goods the storage of which are not covered by this document UN-classific

35、ation Storage media Class 1 Class 4.2 Class 4.3 Class 5.2 Class 6.2 Class 7 Explosives Substances liable to spontaneous combustion Substances which in contact with water emit flammable gases Organic peroxides Infectious substances Radioactive material, hydrocyanic or hydrocyanic solvent liquids, met

36、alcarbonyls, hydrofluoracid, bromide liquids NOTE The classifications referred to are those adopted by the United Nations Committee of Experts on the Transport of Dangerous Goods (not to be interpreted as tank classes described in 3.1.4). This document does not cover the installation of tanks which

37、might be subject to local regulations involving pollution control. EN 12285-2:2005 (E) 7 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

38、of the referenced document (including any amendments) applies. EN 287-1, Qualification test of welders Fusion welding Part 1: Steels EN 2882, Specification and approval of welding procedures for metallic materials Part 2: Welding procedures specification for arc welding EN 10025-2, Hot rolled produc

39、ts of structural steels - Part 2: Technical delivery conditions for non-alloy structural steels EN 10051:1991 + A1:1997, Continuously hot-rolled uncoated plate, sheet and strip of non-alloy and alloy steels Tolerances on dimensions and shape (includes amendment A1:1997) EN 10204:2004, Metallic produ

40、cts Types of inspection documents EN 12285-1:2003, Workshop fabricated steel tanks Part 1: Horizontal cylindrical single skin and double skin tanks for the underground storage of flammable and non-flammable water polluting liquids EN 13501-1, Fire classification of construction products and building

41、 elements Part 1: Classification using test data from reaction to fire tests EN ISO 898-1, Mechanical properties of fasteners of carbon steel and alloy steel Part 1: Bolts, screws and studs (ISO 898-1:1999) EN ISO 15607, Specification and qualification of welding procedures for metallic materials Pa

42、rt 1: General rules (ISO 15607:2003) EN ISO 15614-1, Specification and qualification of welding procedures for metallic materials Welding procedure test Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys (ISO 15614-1:2004) 3 Terms, definitions, symbols and abbreviation

43、s 3.1 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1.1 tank workshop fabricated cylindrical containment for the storage of liquids. It is made of steel, equipped with dished ends and consists of one or more compartments 3.1.2 aboveground tank

44、tank which is not buried in the ground; (a tank installed in a basement is an aboveground tank) 3.1.3 compartment single storage fluid space within a tank 3.1.4 tank classes as defined in Table 2 EN 12285-2:2005 (E) 8 Table 2 Tank classes Tank class Description Class A Class B Class C for liquids wi

45、th density up to 1,1 kg/l for liquids with density up to 1,9 kg/l for liquids with density up to 1,9 kg/l and explosion pressure shockproof under atmospheric conditions (see also 3.1.5) 3.1.5 explosion pressure shockproof tank tank which is designed to withstand an internal explosion without leakage

46、; permanent deformations are permissible. Where the atmospheric pressure is 1 bar the maximum explosion pressure is measured at 10 bar (abs.) 3.1.6 tank type for the purpose of this document two tank types are distinguished: Type S: Single skin Type D: Double skin 3.1.7 operating pressure (Po) press

47、ure inside the tank above the liquid during operating conditions 3.1.8 test pressure (Pt1) pressure to which the tank or compartment is subjected for testing 3.1.9 interstitial test pressure (Pt2) pressure to which the interstitial space between the skins is subjected for testing. It is only applica

48、ble for double skin tanks 3.1.10 nominal volume storage capacity for which the tank is sold 3.1.11 actual volume total internal capacity of the tank which is equal to or greater than the nominal volume NOTE The safe working capacity of the tank should normally not exceed 95 % of the nominal volume f

49、or mineral oil products. For other liquids the safe working capacity conforms to Equation (1). 351100+=f (1) where f is the percentage of nominal volume (%); is the thermal expansion coefficient of the liquid (K). EN 12285-2:2005 (E) 9 3.2 Symbols and abbreviations For the purpose of this document, the following symbols apply. Dimensions in mm a Weld thickness b1Width of the saddle b2Width of compensation plate d1External nominal diameter of the tank d2Inside diameter of the ma