1、BS EN 12819:2009ICS 23.020.30; 75.200NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDLPG equipmentand accessories Inspection andrequalification of LPGtanks greater than 13mThis British Standard was published under the authority of the Standards Policy and Strate
2、gy Committee on 31 January 2010 BSI 2010ISBN 978 0 580 60686 1Amendments/corrigenda issued since publicationDate CommentsBS EN 12819:2009National forewordThis British Standard is the UK implementation of EN 12819:2009. It supersedes BS EN 12819:2002 and BS EN 12820:2002 which arewithdrawn.The UK par
3、ticipation in its preparation was entrusted to Technical Committee PVE/19, LPG containers and their associated fittings.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a con
4、tract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN 12819:2009EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12819 December 2009 ICS 23.020.30 Supersedes EN 12819:2002, EN 12820:2002English Version LPG
5、equipment and accessories - Inspection and requalification of LPG tanks greater than 13 m quipements et accessoires GPL - Inspection et requalification des rservoirs GPL dun volume suprieur 13 m pour gaz de ptrole liqufis (GPL) Flssiggas-Gerte und -Ausrstungsteile - berprfung und erneute Qualifizier
6、ung von Behltern fr Flssiggas (LPG) grer als 13 m This European Standard was approved by CEN on 7 November 2009. 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 al
7、teration. Up-to-date lists and bibliographical references concerning such national standards 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 t
8、ranslation under the responsibility of a CEN member into its own language and notified to the CEN 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, F
9、rance, 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 STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE
10、 FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12819:2009: EBS EN 12819:2009EN 12819:2009 (E) 2 Contents Page Foreword 4Introduction .51 Scope 62 Normative refe
11、rences 63 Terms and definitions .64 Safety 74.1 Safety precautions .74.2 Unsafe conditions 74.3 Leaks .75 Written scheme 86 Tank inspection and requalification 86.1 Routine inspection.86.2 Periodic inspection 96.3 Requalification .96.3.1 Requalification of overground LPG tanks .96.3.2 Requalificatio
12、n of underground LPG tanks 96.3.3 Commissioning 97 Inspection of tank and tank fittings .97.1 Tank .97.2 Tank fittings and immediate pipework . 107.3 Valve cover 107.4 Bonding . 107.5 Pressure relief valves . 107.6 Pressure gauges . 107.7 Contents gauges . 117.8 Shut-off valves 117.9 Studs, bolts, n
13、uts, and washers 117.10 Emergency valves. 117.11 Gaskets 117.12 Pressure switch 117.13 Temperature gauge. 117.14 Remotely operated valves . 117.15 Corrosion protection system . 117.16 Piers and foundations 118 Competence 118.1 Routine inspection 128.2 Periodic inspection . 128.3 Requalification 129
14、Records 129.1 Tank data . 129.2 Test reports . 12Annex A (informative) Visual inspection 13A.1 Internal and external visual inspections 13A.2 Inspection techniques 13A.2.1 External visual inspection . 13A.2.2 Internal visual inspection . 13BS EN 12819:2009EN 12819:2009 (E) 3 A.2.3 Records 13A.3 Addi
15、tional inspection 14Annex B (informative) Hydraulic pressure test 15Annex C (normative) Acoustic emission testing . 16C.1 Scope 16C.2 Testing procedure . 16C.3 Instrumentation . 16C.3.1 Sensors. 16C.3.2 Acquisition and evaluation system . 16C.4 Testing 16C.4.1 Test instruction 16C.4.2 Safety precaut
16、ions 17C.5 Sensor location 17C.5.1 Above ground tanks 17C.5.2 Underground or mounded tanks . 17C.5.3 Pressurisation 19C.6 Data evaluation and analysis . 19C.6.1 Evaluation criteria . 19C.6.2 Real time control and stop criteria 21C.6.3 Post test analysis 21C.6.4 Tank grading 21C.7 Data storage and re
17、porting. 22Annex D (informative) Ultrasonic thickness test . 23D.1 General . 23D.2 Apparatus setting 23D.3 Control measurement . 23D.4 Shell thickness measurements 23D.5 End thickness measurements 23D.6 Interpretation . 23D.7 Rejection criteria . 24Annex E (informative) Monitoring cathodic protectio
18、n with sacrificial anodes for underground tanks . 25E.1 General . 25E.2 Records 25E.3 Procedure . 25E.4 Measurement of the galvanic current 25E.5 Measurement of the potential difference of the tank to the reference electrode 25E.6 Results 26Annex F (informative) Monitoring cathodic protection by imp
19、ressed current for underground tanks . 27F.1 General . 27F.2 Apparatus . 27F.3 Conditions 27F.4 Isolation resistance of the coating 27F.4.1 Procedure . 27F.4.2 Calculation . 28F.5 Results 28F.6 Checking intervals . 28Annex G (informative) Example of a test report . 29Annex H (informative) A-deviatio
20、ns 30Bibliography 31BS EN 12819:2009EN 12819:2009 (E) 4 Foreword This document (EN 12819:2009) has been prepared by Technical Committee CEN/TC 286 “Liquefied petroleum gas equipment and accessories”, the secretariat of which is held by NSAI. This document supersedes EN 12819:2002 and EN 12820:2002.
21、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 June 2010, and conflicting national standards shall be withdrawn at the latest by June 2010. Attention is drawn to the possibility that some of the
22、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. Users of this EN, prepared in the field of application of Article 118A of the EC Treaty, should be aware that standards have no formal legal
23、relationship with Directives that may have been made under Article 118A of the Treaty. In addition, national legislation in the Member states may contain more stringent requirements than the minimum requirements of a Directive based on Article 118A. Information on the relationship between the nation
24、al legislation implementing Directives based on Article 118A and this EN may be given in a national foreword of the national standard implementing this EN. The main modifications concern the following: merging of two European Standards: EN 12819:2002 and EN 12820:2002; improvement of Annex C which b
25、ecomes normative; a new clause: normative references. 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, Franc
26、e, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 12819:2009EN 12819:2009 (E) 5 Introduction Periodic and routine inspection and requ
27、alification regimes for LPG tanks greater than 13 m3have developed in various countries in different ways that range from defined to variable inspection periods with requalification regimes achieved by various methods. This European Standard for periodic and routine inspection and requalification is
28、 based on European countries legislation and codes of practice and industries codes of practice. In addition, use of LPG in different applications has encouraged the industry to approach the requirements for routine and periodic inspection and requalification in different ways for each application.
29、This European Standard calls for the use of substances and procedures that can be injurious to health if adequate precautions are not taken. It refers only to technical suitability and does not absolve the user from legal obligations relating to health and safety at any stage. It has been assumed in
30、 the drafting of this European Standard that execution of its provisions is entrusted to appropriately qualified and experienced people. BS EN 12819:2009EN 12819:2009 (E) 6 1 Scope This European Standard specifies requirements for: a) routine inspection, periodic inspection and requalification of fi
31、xed LPG storage tanks of sizes greater than 13 m3, and associated fittings; b) marking tanks and/or keeping records, as appropriate, as a result of routine inspection, periodic inspection and requalification. This European Standard excludes refrigerated storage. 2 Normative references The following
32、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 1330-9, Non-destructive testing Terminology Part 9: Terms us
33、ed in acoustic emission testing EN 13477-1, Non-destructive testing Acoustic emission Equipment characterisation Part 1: Equipment description EN 13447-2, Non-destructive testing Acoustic emission Equipment characterisation Part 2: Verification of operating characteristic EN 13554, Non-destructive t
34、esting Acoustic emission General principles EN 14584, Non-destructive testing Acoustic emission Examination of metallic pressure equipment during proof testing Planar location of AE sources 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 peri
35、odic inspection external inspection of the visible parts of a tank and its fittings 3.2 routine inspection external inspection of the visible parts of a tank and its fittings, carried out more frequently than periodic inspections 3.3 requalification inspection/test carried out at intervals, in order
36、 to confirm that a tank is fit for a further period of service 3.4 competent body person or corporate body, defined by a national competent authority, that, by appropriate qualification, training, experience, and resources, is able to make objective judgements related to inspection and testing of pr
37、essure equipment in LPG service BS EN 12819:2009EN 12819:2009 (E) 7 3.5 competent person person who, by qualification, training, experience, and resources, is able to make objective judgements related to inspection and testing of pressure equipment in LPG service 3.6 national competent authority org
38、anization, recognized or appointed by a member state, that oversees safe operation of LPG pressure equipment 3.7 written scheme document, prepared by a competent body, containing inspection information 3.8 commissioning preparation for safe service 3.9 decommissioning removing from service and safe
39、preparation for inspection/test 3.10 Liquefied Petroleum Gas LPG mixture of predominantly butane or propane with traces of other hydrocarbon gases classified in accordance with UN number 1965, hydrocarbon gases mixture, liquefied, NOS or UN number 1075, petroleum gases, liquefied NOTE In some countr
40、ies, UN numbers 1011 and 1978 may also be designated LPG. 4 Safety 4.1 Safety precautions Appropriate safety precautions shall be taken during decommissioning, commissioning and inspection/requalification of a tank and its fittings. 4.2 Unsafe conditions Any unsafe condition observed by a competent
41、person on the site of an LPG storage tank shall be reported to the person responsible for safe operation of the tank/site, as appropriate, and action taken. 4.3 Leaks Any leak discovered from the tank or its fittings shall be reported immediately to the person responsible for safe operation of the t
42、ank. Action to make the tank or its fittings safe shall be taken by a competent person. NOTE Methods for detecting leaks include: visual inspection; smell; BS EN 12819:2009EN 12819:2009 (E) 8 listening; use of gas detectors. 5 Written scheme 5.1 Each tank and its fittings shall be included in a writ
43、ten scheme taking into account the requirements of Clauses 6 to 8. 5.2 If duties are shared between different parties then the written scheme shall clearly identify the respective areas of responsibility. 5.3 Intervals between inspections shall be determined by consideration of the following: the de
44、sign specification of the tank and its equipment; the corrosion protection system on the tank; the system used to ensure that the LPG quality conforms to its specifications/standards, and that it does not contain components damaging to the material of the tank or its fittings; the level of control o
45、ver filling and maintenance of the tank. NOTE The maximum period between requalifications should not normally be greater than 12 years, and if conditions are not satisfactory the period should be reduced. 5.4 The written scheme shall contain the following information: the maximum interval between in
46、spections; the parts to be inspected; the nature of the inspection; the critical parts that, if modified or repaired, must be inspected by a competent person/body before they can be put back into service; the requirements for pressure relief valves (see 7.5.1); the name of the competent body prepari
47、ng the written scheme; the date of the preparation of the written scheme. 6 Tank inspection and requalification 6.1 Routine inspection 6.1.1 Each tank and its fittings shall be routinely inspected at intervals defined in the written scheme. 6.1.2 An inspection or exception test report shall be produ
48、ced if repairs are required. 6.1.3 Routine inspections shall include 7.1, 7.2, 7.3, 7.4, 7.5.2, 7.5.3, 7.7, 7.14 and 7.16. BS EN 12819:2009EN 12819:2009 (E) 9 6.2 Periodic inspection 6.2.1 Each tank and its fittings shall be periodically inspected at intervals defined in the written scheme. 6.2.2 Pe
49、riodic inspections shall include 6.1.3, 7.5.4, 7.6, 7.8, 7.12, 7.13 and 7.15. 6.2.3 A visual inspection of external surface shall be carried out (see Annex A). If tanks are provided with fixed passive fire protection, techniques described in Annex A are unsuitable. The written scheme shall specify alternative
