1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-22248-2 SANS 53121-2:2009Edition 1EN 13121-2:2003Edition 1SOUTH AFRICAN NATIONAL STANDARD GRP tanks and vessels for use above ground Part
4、2: Composite materials Chemical resistance This national standard is the identical implementation of EN 13121-2:2003 and is adopted with the permission of CEN, rue de Stassart 36, B-1050 Brussels. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +2
5、7 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 53121-2:2009 Edition 1 EN 13121-2:2003 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS TC 1015, Fibre-reinforced plastics products, in accordance with pr
6、ocedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in July 2009. EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 13121-2October 2003ICS 23.020.10English versionGRP tanks and vessels for use above ground - Part 2:Composite
7、materials - Chemical resistanceRservoirs et rcipients en PRV pour utilisation hors sol -Partie 2: Matriaux composites - Rsistance chimiqueOberirdische GFK-Tanks und -Behlter - Teil 2:Verbundwerkstoffe - Chemische WiderstandsfhigkeitThis European Standard was approved by CEN on 26 June 2003.CEN membe
8、rs 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 bibliographical references concerning such nationalstandards may be obtained on application
9、to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same statu
10、s as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN C
11、OMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2003 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13121-2:2003 EEN 13121-2:2003 (E)2Con
12、tentsPageForeword3Introduction .41 Scope 52 Normative references 53 Definitions.54 Protective layers 65 Determination of partial design factor, A2.7Annex A (normative) Determination of partial design factor, A2, in accordance with media lists12Annex B (normative) Determination of partial design fact
13、or, A2, by service experience.21Annex C (informative) Evaluation of partial design factor, A2, by testing in situ or by laboratory testing 22Annex Z (informative) Relationship between this European Standard .31Annex ZA and the Essential requirements of EU Directive 97/23/EC (PED)31EN 13121-2:2003 (E
14、)3ForewordThis document (EN 13121-2:2003) has been prepared by Technical Committee CEN/TC 210 “GRP tanks andvessels”, 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 orby endorsement, at the l
15、atest by April 2004, and conflicting national standards shall be withdrawn at the latest byApril 2004.This European Standard has been prepared under a mandate given to CEN by the European Commission and theEuropean Free Trade Association and supports essential requirements of EU Directive 97/23/EC.F
16、or relationship with this European Directive see informative Annex ZA, which is an integral part of this standard.This standard is Part 2 of EN 13121 which in total covers materials, design, manufacture, inspection, delivery,installation and maintenance of GRP tanks and vessels for use above ground.
17、 This Part 2 specifies requirementsfor chemical resistance of composite materials used for GRP tanks and vessels for the storage or processing offluids, for use above ground. The tanks and vessels may be factory made or site built, with or without lining.Annexes A and B are normative. Annex C is inf
18、ormative.This document includes a bibliography.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland
19、, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.EN 13121-2:2003 (E)4IntroductionEuropean Standard EN 13121 consists of the following parts under the general title “GRP tanks and vessels for useabove ground“:Part 1 Raw mat
20、erials Specification conditions and acceptance conditionsPart 2 Composite materials - Chemical resistancePart 3 Design and workmanshipPart 4 Delivery, installation and maintenanceThese four parts together define the responsibilities of the tank or vessel manufacturer, the materials manufacturersor s
21、uppliers and the purchaser.The design and manufacture of GRP tanks and vessels involve a number of different materials such as resins,thermoplastics and reinforcing fibres and a number of different manufacturing methods. It is implicit that tanks andvessels conforming to this Standard should be made
22、 only by manufacturers who are competent and suitably equippedto fulfil all requirements, using materials manufactured by competent and experienced material manufacturers.EN 13121-1 gives the requirements necessary to establish that the GRP material and any thermoplastic lining willhave the required
23、 chemical and thermal resistance to the service conditions. EN 13121-1 specifies the requirementsfor the specification conditions and acceptance conditions for GRP and thermoplastic materials, which are necessaryin order to establish the chemical resistance properties of these materials in accordanc
24、e with this Part of the standard.EN 13121-2 gives the requirements necessary to establish that the GRP material and any thermoplastic lining willlhave sufficient chemical and thermal resistance to service conditions. Part 2 defines the requirements for theprotective layer and the structural laminate
25、 as well as defining methods for proof of suitability to meet thechemical/thermal effects caused by the fluids and of determination of the partial design factor, A2, as required fordesign in accordance with prEN 13121-3. Five methods are described use of Media Lists, use of resinmanufacturers data,
26、use of thermoplastics manufacturers data, service experience and sample testing. Themanufacturer of the tank or vessel may choose any one of these methods subject to here being sufficient dataavailable in that method for the particular application.Together with the requirements and acceptance condit
27、ions for the raw materials determined in EN 13121-1, thedesign and workmanship requirements as determined in prEN 13121-3 and the delivery, handling, installation andmaintenance recommendations given in EN 13121-4, EN 13121-2 completes the total standards requirements.EN 13121-2:2003 (E)51 ScopeThis
28、 European Standard gives requirements for chemical resistance of composite materials used for GRP tanks andvessels for storage or processing of fluids, for use above ground. The tanks or vessels may be factory made or sitebuilt, with or without lining.2 Normative referencesThis European Standard inc
29、orporates, by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listed hereafter. For datedreferences, subsequent amendments to or revisions of any of these publications apply to this Eur
30、opean Standard onlywhen incorporated in it by amendment or revision. For undated references, the latest edition of the publicationreferred to applies.EN 59, Glass reinforced plastics Measurement of hardness by means of a Barcol impressor.EN 590, Automotive fuels Diesel - Requirements and test method
31、sEN 13121-1:2003, GRP tanks and vessels for use above ground Part 1: Raw materials Specificationconditions and acceptance conditions.prEN 13121-3, GRP tanks and vessels for use above ground Part 3: Design and workmanship.EN 13121-4, GRP tanks and vessels for use above ground Part 4: Delivery, instal
32、lation and maintenance.EN ISO 4599, Plastics Determination of resistance to environmental stress cracking (ESC) Bent strip method(ISO 4599:1986).EN ISO 6252, Plastics Determination of Environmental Stress Cracking (ESC) Constant-tensile-stressmethod (ISO 6252:1992).EN ISO 14125:1998, Fibre-reinforce
33、d plastic composites Determination of flexural properties (ISO 14125:1998).ISO 1172, Textile-glass-reinforced plastics. Prepregs, moulding compounds and laminates Determination of thetextile-glass and mineral-filler content Calcination methods.ISO 4433-1, Thermoplastics pipes Resistance to liquid ch
34、emicals Classification Part 1: Immersion testmethod.ISO 4433-2, Thermoplastics pipes Resistance to liquid chemicals Classification Part 2: Polyolefin pipes.ISO 4433-3, Thermoplastics pipes Resistance to liquid chemicals Classification Part 3: Unplasticizedpoly(vinyl chloride) (PVC-U), high-impact po
35、ly(vinyl chloride) (PVC-HI) and chlorinated poly(vinyl chloride) (PVC-C)pipes.ISO 4433-4, Thermoplastics pipes Resistance to liquid chemicals Classification Part 4: Poly(vinylidenefluoride) (PVDF) pipes.3 DefinitionsFor the purposes of this standard in addition to the definitions given in EN 13121-1
36、:2003, the following definitionsapply:3.1resin layer (RL)a layer of resin with or without additives in accordance with clause 7 of EN 13121-1:2003, but without nonwovensor any other fibreEN 13121-2:2003 (E)63.2veil layer (VL)a layer of resin with or without additives in accordance with clause 7 of E
37、N 13121-1:2003, with one or two surfacenonwovens3.3single protective layer (SPL)a protective layer of resin with or without surface nonwovens to meet slight or less significant effects caused byservice conditions3.4chemical resistant layer (CRL)a protective layer of resin with or without surface non
38、wovens to meet more significant or major effects caused byservice conditions.3.5thermoplastic lining (TPL)a protective using thermoplastic materials as a lining to meet effects caused by service conditions3.6samplea piece of laminate or thermoplastic sheet for purposes of testing3.7specimena piece o
39、f a sample prepared for purposes of testing3.8test piecea piece of a specimen for purposes of mechanical testing only3.9maximum temperature Tmtemperature given by the resin manufacturer or the thermoplastics manufacturer referring to a specified fluid3.10maximum design temperature Tdmaximum temperat
40、ure for determination of the partial design factor, A2, by different methods of this standard.4 Protective layers4.1 General requirementsThe inner surface of all laminates shall consist of a protective layer. The protective layer shall be either a singleprotective layer (SPL) or a chemical resistant
41、 layer (CRL) or a thermoplastic lining (TPL).The type of protective layer shall be selected on the basis of the ability to prevent, or limit to an acceptable level,chemical attack on the laminate. In order to do this, it shall be chemically resistant to the service conditions, allowlimited diffusion
42、 of service fluids and shall not suffer environmental stress cracking. The TPL may require stressrelief to prevent environmental stress cracking, see prEN 13121-3.The required thickness of the protective layer shall be in accordance with Table 1.When required, flammability and/or electrical conducti
43、vity shall be taken into account and/or the protective layershall be selected on the basis of its ability to maintain the purity of the service fluids.The requirements for workmanship of the protective layer are defined in prEN 13121-3.For application in contact with foodstuffs the relevant regulati
44、ons shall be considered.EN 13121-2:2003 (E)7Table 1 Required thicknesses of protective layersProtective layer Required thicknessmmSPL 0,4 to 0,6CRL 2,5 to 4,0PVC-U 3,0 to 4,5PP-H, -B, -R 3,0 to 6,0PVDF 2,4 to 4,0E-CTFE, FEP, PFA 1,7 to 4,04.2 Single protective layer (SPL)The single protective layer
45、SPL) shall be either a veil layer (VL) or a resin layer (RL).4.3 Chemical resistant layer (CRL)The chemical resistant layer (CRL) shall be a single or double veil layer (VL) followed by a layer or layers of eitherchopped strand mat or sprayed fibres with a total mass per unit area greater than or eq
46、ual to 900 g/m2. The fibrecontent shall be between 25 % and 35 % by mass.Following the veil layer (VL), the subsequent chopped strand mats or sprayed fibres shall be applied before cure.4.4 Thermoplastic lining (TPL)All parts of the lining shall be manufactured from the same or compatible grade of m
47、aterial.Linings of PVC-U are to be treated initially using a solvent based primer or the initial contact layer shall be appliedusing a specific bonding resin. Linings of PP, PVDF, E-CTFE, FEP or PFA shall have a glass or synthetic fibrefabric backing branches up to 100 mm diameter may use chemically
48、 etched E-CTFE or PVDF linings.The initial contact layer applied directly to the thermoplastic lining shall be reinforced with chopped strand mat with300 g/m2to 450 g/m2. The minimum bond strength of the reinforcement to the lining shall be in accordance withprEN 13121-3.Subsequent to any forming or
49、 machining, the specified thickness shall be maintained. This may require initial use ofa thicker lining material.5 Determination of partial design factor, A25.1 GeneralThis clause defines the methods for determining the partial design factor, A2, used for establishing the design factor Kand the design factor F in accordance with prEN 13121-3.Five methods are described and are summarised in Table 2; together with the maximum design temperature, Td,applicable to each particular method.The methods listed provi
