BS EN ISO 28765-2016 Vitreous and porcelain enamels Design of bolted steel tanks for the storage or treatment of water or municipal or industrial effluents and sludges《釉瓷和搪瓷 水或市政和工.pdf

1、BSI Standards PublicationBS EN ISO 28765:2016Vitreous and porcelain enamels Design of bolted steel tanksfor the storage or treatment ofwater or municipal or industrialeffluents and sludgesBS EN ISO 28765:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO28

2、765:2016. It supersedes BS EN ISO 28765:2011 which iswithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee STI/36, Vitreous enamel coatings.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purpo

3、rt to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 86619 7ICS 13.060.01; 23.020.10; 25.220.50Compliance with a British Standard cannot confer immunity

4、fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 29 February 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 28765 February 2016 ICS 2

5、5.220.50 Supersedes EN ISO 28765:2011English Version Vitreous and porcelain enamels - Design of bolted steel tanks for the storage or treatment of water or municipal or industrial effluents and sludges (ISO 28765:2016) maux vitrifis - Conception de rservoirs en acier boulonns pour le stockage ou le

6、traitement des eaux ou des effluents deaux uses urbains ou industriels (ISO 28765:2016) Emails und Emaillierungen - Gestaltung von verschraubten Stahlbehltern fr die Speicherung oder Behandlung von Wasser oder kommunalen und industriellen Abwssern und Abwasserschlamm (ISO 28765:2016) This European S

7、tandard was approved by CEN on 19 December 2015. 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 concer

8、ning such national standards may be obtained on application to the CEN-CENELEC 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

9、 its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Ge

10、rmany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE F

11、R NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 28765:2016 EBS EN ISO 28765:2016EN ISO 28765:2016 (E) 3 European foreword This document (EN ISO 287

12、65:2016) has been prepared by Technical Committee ISO/TC 107 “Metallic and other inorganic coatings“ in collaboration with Technical Committee CEN/TC 262 “Metallic and other inorganic coatings” the secretariat of which is held by BSI. This European Standard shall be given the status of a national st

13、andard, either by publication of an identical text or by endorsement, at the latest by August 2016, and conflicting national standards shall be withdrawn at the latest by August 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights

14、. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 28765:2011. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standa

15、rd: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spai

16、n, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 28765:2016 has been approved by CEN as EN ISO 28765:2016 without any modification. BS EN ISO 28765:2016ISO 28765:2016(E)Foreword v1 Scope . 12 Normative references 13 Terms and definitions . 24 Symbols and abbr

17、eviated terms . 45 Units . 56 Information and requirements to be agreed and documented . 66.1 General . 66.2 Information to be provided by the purchaser 66.3 Information to be provided by the designer . 77 Applicable standards . 78 Loads . 78.1 General . 78.2 Contents 88.2.1 General 88.2.2 Freeboard

18、 . 88.2.3 Hydrostatic pressure 88.2.4 Axial wall forces 88.2.5 Filling and discharging . 88.3 Tank structure . 98.4 Roof . 98.5 Equipment loads 98.5.1 General 98.5.2 Static load . 98.5.3 Dynamic load 98.6 Access 98.7 Environmental 108.7.1 General. 108.7.2 Seismic action 108.7.3 Wind 108.7.4 Snow 108

19、.7.5 Ice .108.8 Ancillary items . 109 Design .109.1 General 109.2 Steel . 119.2.1 Specification 119.2.2 Effects of the enamelling process . 119.3 Tank . 119.3.1 Load factors . 119.3.2 Tank walls . 129.3.3 Tank roof 159.3.4 Attachment of walls to floor 159.3.5 Tank floor 159.3.6 Ancillary items 169.3

20、.7 Cathodic protection 169.4 Openings 169.4.1 Access manway.169.4.2 Pipe connections .169.4.3 Overflows 169.4.4 Reinforcement of manways and pipe connections in the tank shell 17 ISO 2016 All rights reserved iiiContents PageBS EN ISO 28765:2016ISO 28765:2016(E)9.4.5 Connections in the roof . 179.5 E

21、ffects of accidents . 179.5.1 Risk assessment .179.5.2 Explosions. 179.5.3 Uncontrolled fluctuation in input stream characteristics .1810 Vitreous-enamel coating .1810.1 Vitreous enamel 1810.2 Coating 1810.3 Vitreous-enamel quality 1810.3.1 Preparation and test frequency . 1810.3.2 Inspection . 1810

22、.3.3 On-site rectification 1910.4 Protection during shipping . 2310.5 Maintenance . 2311 Installation 2311.1 General guidance 2311.2 Foundations 2311.3 Inspection of the vitreous-enamel coating at the construction site 2312 Disinfection .23Bibliography .24iv ISO 2016 All rights reservedBS EN ISO 287

23、65:2016ISO 28765:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in

24、a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commissi

25、on (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents shoul

26、d be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for iden

27、tifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the conveni

28、ence of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword -

29、Supplementary informationThe committee responsible for this document is ISO/TC 107, Metallic and other inorganic coatings.This second edition cancels and replaces the first edition (ISO 28765:2008), which has been technically revised. ISO 2016 All rights reserved vBS EN ISO 28765:2016BS EN ISO 28765

30、:2016Vitreous and porcelain enamels Design of bolted steel tanks for the storage or treatment of water or municipal or industrial effluents and sludges1 ScopeThis International Standard establishes the requirements for the design and use of vitreous-enamel-coated bolted cylindrical steel tanks for t

31、he storage or treatment of water or municipal or industrial effluents and sludges.It applies to the design of the tank and any associated roof and gives guidance on the requirements for the design of the foundation.It applies wherea) the tank is cylindrical and is mounted on a load-bearing base subs

32、tantially at or above ground level;b) the product of the tank diameter in metres and the wall height in metres lies within the range 5 to 500;c) the tank diameter does not exceed 100 m and the total wall height does not exceed 50 m;d) the stored material has the characteristics of a liquid, exerting

33、 a negligible frictional force on thetank wall; the stored material may be undergoing treatment as part of a municipal or industrialeffluent treatment process;e) the internal pressure in the headspace above the liquid does not exceed 50 kPa and the internalpartial vacuum above the liquid does not ex

34、ceed 10 kPa;f) the walls of the tank are vertical;g) the floor of the tank is substantially flat at its intersection with the wall; the floor of the tank mayhave a rise or fall built in to allow complete emptying of the tank contents, the slope of which doesnot exceed 1:100;h) there is negligible in

35、ertial and impact load due to tank filling;i) the minimum thickness of the tank shell is 1,5 mm;j) the material used for the manufacture of the steel sheets is carbon steel (tanks constructed of sheetsmade from aluminium or stainless steel are outside the scope of this International Standard);k) the

36、 temperature of the tank wall during operation is within the range 50 C to +100 C under alloperating conditions.This International Standard also gives details of procedures to be followed during installation on site and for inspection and maintenance of the installed tank.It does not apply to chemic

37、al-reaction vessels.It does not cover resistance to fire.2 Normative referencesThe 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 applies. For undated references, the latest

38、 edition of the referenced document (including any amendments) applies.INTERNATIONAL STANDARD ISO 28765:2016(E) ISO 2016 All rights reserved 1BS EN ISO 28765:2016ISO 28765:2016(E)ISO 2178, Non-magnetic coatings on magnetic substrates Measurement of coating thickness Magnetic methodISO 2746:2015, Vit

39、reous and porcelain enamels High voltage testISO 2859-1, Sampling procedures for inspection by attributes Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspectionISO 4532, Vitreous and porcelain enamels Determination of the resistance of enamelled articles to impa

40、ct Pistol testISO 6370-2, Vitreous and porcelain enamels Determination of the resistance to abrasion Part 2: Loss in mass after sub-surface abrasionISO 8289:2000, Vitreous and porcelain enamels Low voltage test for detecting and locating defectsISO 15686-1, Buildings and constructed assets Service l

41、ife planning Part 1: General principles and frameworkISO 28706-1:2008, Vitreous and porcelain enamels Determination of resistance to chemical corrosion Part 1: Determination of resistance to chemical corrosion by acids at room temperatureISO 28706-2:2008, Vitreous and porcelain enamels Determination

42、 of resistance to chemical corrosion Part 2: Determination of resistance to chemical corrosion by boiling acids, boiling neutral liquids and/or their vapoursISO 28706-3:2008, Vitreous and porcelain enamels Determination of resistance to chemical corrosion Part 3: Determination of resistance to chemi

43、cal corrosion by alkaline liquids using a hexagonal vesselISO 28706-4:2008, Vitreous and porcelain enamels Determination of resistance to chemical corrosion Part 4: Determination of resistance to chemical corrosion by alkaline liquids using a cylindrical vesselISO 28763:2008, Vitreous and porcelain

44、enamels Regenerative, enamelled and packed panels for air-gas and gas-gas heat exchangers SpecificationsEN 15771, Vitreous and porcelain enamels Determination of surface scratch hardness according to the Mohs scaleEN 1993-1-6, Eurocode 3 Design of steel structures Part 1-6: Strength and Stability of

45、 Shell StructuresEN 1993-4-1, Eurocode 3 Design of steel structures Part 4-1: SilosEN 1993-4-2, Eurocode 3 Design of steel structures Part 4-2: TanksEN 1998-4, Eurocode 8 Design of structures for earthquake resistance Part 4: Silos, tanks and pipelinesEN 10209:2013, Cold rolled low carbon steel flat

46、 products for vitreous enamelling Technical delivery conditionsANSI/AWWA D 103, Factory-Coated Bolted Steel Tanks for Water Storage3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1briefworking document which specifies at any point in time the rel

47、evant needs and aims of the project, the resources to be provided by the client, the details of the project and any applicable design requirements within which all subsequent briefing (when needed) and designing can take place2 ISO 2016 All rights reservedBS EN ISO 28765:2016ISO 28765:2016(E)3.2clie

48、ntperson or organization that requires a tank to be provided, altered or extended and is responsible for initiating and approving the brief3.3defectbreak in the surface of the vitreous enamel3.4designerperson or organization responsible for stating the shape and specification of the component to be

49、designed3.5design lifeservice life intended by the designer3.6discontinuityweakness within the vitreous enamel coating that is detected by spark testing3.7enamel supplierperson or organization supplying materials for use by the vitreous enameller in the enamelling process3.8freeboarddistance between the top of the cylindrical-tank vertical shell wall and the surface of the contained liquid at the specified operating level3.9headspace pressurepressure within a roofed tank above the stored l