1、Determination of the resistance to cryogenic spillage of insulation materialsPart 1: Liquid phases (ISO 20088-1:2016)BS EN ISO 20088-1:2016BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of EN ISO 20088-
2、1:2016.The UK participation in its preparation was entrusted by TechnicalCommittee PSE/17, Materials and equipment for petroleum, petrochemicaland natural gas industries, to Panel PSE/17/-/9, Liquefied Natural Gas (LNG)installations and equipment.A list of organizations represented on this committee
3、 can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 89893 8ICS 75.200Complia
4、nce with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 October 2016. Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 20088-1:2016EUR
5、OPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 20088-1 October 2016 ICS 75.200 English Version Determination of the resistance to cryogenic spillage of insulation materials - Part 1: Liquid phases (ISO 20088-1:2016) Dtermination de la rsistance des matriaux disolation thermique suite un refro
6、idissement cryognique - Partie 1: Phase liquide (ISO 20088-1:2016) Bestimmung der Bestndigkeit von Isoliermaterialien bei kryogenem Auslaufen - Teil 1: Flssigkeit (ISO 20088-1:2016) This European Standard was approved by CEN on 5 August 2016. CEN members are bound to comply with the CEN/CENELEC Inte
7、rnal 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-CENELEC Management Centre or to any
8、 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 same status as the official ve
9、rsions. CEN members are the national standards bodies of 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
10、, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploit
11、ation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 20088-1:2016 EBS EN ISO 20088-1:2016EN ISO 20088-1:2016 (E) 2 Contents Page European foreword . 3 BS EN ISO 20088-1:2016EN ISO 20088-1:2016 (E) 3 European foreword This document (EN ISO 20088-1:2016) has
12、been prepared by Technical Committee ISO/TC 67 “Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries“ in collaboration with Technical Committee CEN/TC 282 “Installation and equipment for LNG” the secretariat of which is held by AFNOR. This European Sta
13、ndard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2017, and conflicting national standards shall be withdrawn at the latest by April 2017. Attention is drawn to the possibility that some of the elements of thi
14、s 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. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Stan
15、dard: 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, Sp
16、ain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 20088-1:2016 has been approved by CEN as EN ISO 20088-1:2016 without any modification. BS EN ISO 20088-1:2016ISO 20088-1:2016(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definiti
17、ons . 24 Test configurations . 24.1 General . 24.2 Sample holder 25 Construction of the test items and substrates . 35.1 General . 35.2 Material . 35.3 Release tank . 35.4 Specimen support . 45.5 Sample holder 65.6 Test method . 66 Cryogenic spillage protection materials 76.1 General . 76.2 Wet appl
18、ied coating systems . 76.3 Pre-formed system testing 77 Instrumentation 77.1 General . 77.2 Thermocouple location 78 Test apparatus and conditions . 88.1 Injection point and position 88.1.1 General 88.1.2 Injection point position 88.2 Test environment 89 Test procedure 910 Repeatability and reproduc
19、ibility .1011 Uncertainty of measurement 1012 Test report 1013 Practical applications of test results .1113.1 General 1113.2 Performance criteria . 1113.2.1 General. 1113.2.2 Coatings and spray-applied materials 1113.2.3 Systems and assemblies . 1113.3 Factors affecting the validity of the test . 12
20、13.3.1 General. 1213.3.2 Leakage of the release tank . 1213.3.3 Failure of thermocouples . 1213.3.4 Loss of sample integrity/loss of containment .12Annex A (normative) Methods of fixing thermocouples .13Annex B (normative) Complete set-up 15Annex C (normative) Thermocouple positioning inside the sam
21、ple holder .17Annex D (informative) Classification 19 ISO 2016 All rights reserved iiiContents PageBS EN ISO 20088-1:2016ISO 20088-1:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of prepari
22、ng International Standards is normally carried out through ISO technical committees. Each member body interested in 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 lia
23、ison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (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 Dir
24、ectives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should 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 s
25、ome of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying 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 decla
26、rations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience 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 ab
27、out ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.The committee responsible for this document is ISO/TC 67, Materials, equipment and offshore structure for petroleum, petrochemical and nat
28、ural gas industries, Subcommittee SC 9, Liquefied natural gas installations and equipment.iv ISO 2016 All rights reservedBS EN ISO 20088-1:2016ISO 20088-1:2016(E)IntroductionThe test described in the procedure in this document is one in which some of the properties of cryogenic spillage protection m
29、aterials can be determined. This test is designed to give an indication of how cryogenic spillage protection materials will perform in a sudden exposure to cryogenic liquid.The dimensions of the test specimen can be smaller than typical items of structure and plant and the release of liquid can be s
30、ubstantially less than that which might occur in a credible event. However, individual thermal and mechanical loads imparted to the cryogenic spillage protection materials, from the cryogenic spillage defined in the procedure described in this document, have been shown to be similar to those by larg
31、e-scale cryogenic spillage.Further parts of ISO 20088 are planned for future publication: Part 2 : Vapour phase; Part 3: High pressure jet release. ISO 2016 All rights reserved vBS EN ISO 20088-1:2016Determination of the resistance to cryogenic spillage of insulation materials Part 1: Liquid phaseCA
32、UTION The attention of all persons concerned with managing and carrying out cryogenic spillage testing is drawn to the fact that liquid nitrogen testing can be hazardous and that there is a danger of receiving a “cold burn” and/or the possibility that harmful gases (risk of anoxia) can be evolved du
33、ring the test. Mechanical and operational hazards can also arise during the construction of the test elements or structures, their testing and disposal of test residues. An assessment of all potential hazards and risks to health shall be made and safety precautions shall be identified and provided.
34、Appropriate training and personal protection equipment shall be given to relevant personnel.1 ScopeThis document describes a method for determining the resistance to liquid cryogenic spillage on cryogenic spillage protection (CSP) systems. It is applicable where CSP systems are installed on carbon s
35、teel and will be in contact with cryogenic fluids.Liquid nitrogen is used as the cryogenic medium since it has a lower boiling point than liquid natural gas or liquid oxygen and it is not flammable. Additionally, it can be safely used for experiment.Future parts of the standard will cover vapour pha
36、se and jet exposure conditions.The test laboratory is responsible to conduct an appropriate risk assessment according to local regulation in order to consider the impact of liquid and gaseous nitrogen exposure to equipment and personnel.2 Normative referencesThe following documents are referred to i
37、n the text in such a way that some or all of their content constitutes requirements 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. ISO 630-1, Structural steels Part 1: G
38、eneral technical delivery conditions for hot-rolled productsISO 845, Cellular plastics and rubbers Determination of apparent densityISO 8301, Thermal insulation Determination of steady-state thermal resistance and related properties Heat flow meter apparatusISO 16903, Petroleum and natural gas indus
39、tries Characteristics of LNG, influencing the design, and material selectionISO 22899-1, Determination of the resistance to jet fires of passive fire protection materials Part 1: General requirementsEN 10029, Tolerances on dimensions, shape and mass for hot rolled steel plates 3mm thick or aboveINTE
40、RNATIONAL STANDARD ISO 20088-1:2016(E) ISO 2016 All rights reserved 1BS EN ISO 20088-1:2016ISO 20088-1:2016(E)3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological databases for use in standardization at the following
41、addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp3.1floating liquid natural gasFLNGfloating liquid natural gas facilities such as floating production storage and offloading (LNG-FPSO), floating storage and re-gasifi
42、cation unit (LNG-FSRU)3.2cryogenic spillunintended exposure to cryogenic liquid (CL) at 196C3.3cryogenic spill protectionCSPcoating or cladding arrangement, or free-standing system which, in the event of a cryogenic spill, will provide thermal protection to restrict the heat transfer rate of the sub
43、strate3.4limiting temperatureminimum temperature that the equipment, assembly or structure to be protected may be allowed to reach3.5release pointassembly from which the cryogenic fluid flows out3.6sponsorperson or organization who/which requests a test3.7specimen ownerperson or company that holds/p
44、roduces a material to test4 Test configurations4.1 GeneralThere is one basic configuration under which the test can be conducted. This is a liquid configuration where the material to be tested is rapidly exposed to liquid nitrogen in a pool at a temperature of 196 C. For reasons of clarity, flexible
45、 hoses used for fume extraction are not shown in Figures 1 to 4 below.4.2 Sample holderSamples will be tested in a sample holder with exact dimension as specified in ISO 22899-1:2007, Figure 11.2 ISO 2016 All rights reservedBS EN ISO 20088-1:2016ISO 20088-1:2016(E)5 Construction of the test items an
46、d substrates5.1 GeneralThe key items required for the test are: a liquid nitrogen injection point; a sample holder; the insulation part.It is important to reduce vapour generation during the liquid nitrogen dumping. Flexible hoses are to be used without forced ventilation.5.2 MaterialThe material no
47、rmally used is a 10 mm thick steel plate complying with ISO 630-1, Grade Fe 430. An all welded construction shall be used and all welds shall be 5 mm fillet and continuous unless otherwise stated. All dimensions are in millimetres and, unless otherwise stated, the following tolerances shall be used:
48、 whole number 1,0 mm; decimal to point, 0 mm 0,4 mm; decimal to point, 00 mm 0,2 mm; angles 0 30”; radius 0,4 mm.5.3 Release tankThe liquid nitrogen is contained within a tank of a constant surface area either a square base of 750 mm or circular base of 846 mm diameter. The release orifice shall be
49、100 mm in diameter.When there is 250 l of stable non-bubbling liquid nitrogen within the tank, the test is ready to start. The release tank shall be constructed of cryogenic resistant stainless steel and externally insulated for personnel protection. ISO 2016 All rights reserved 3BS EN ISO 20088-1:2016ISO 20088-1:2016(E)F FDE8040410001010106022uni230012Section view F-FScale 1:10Detail DScale 1:2Top viewScale 1:10Detail EScale 1:2uni230012uni230098uni2300100uni2300140750Figure 1 Layout of a square rel
