1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1393 : 1997 BS 2782
2、 Part 12 : Methods 1210 A to 1210 C : 1997 Incorporating Amendment No. 1 The European Standard EN 1393 : 1996 has the status of a British Standard ICS 23.040.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Plastics piping systems Glass-reinforced thermosetting plastics (GRP
3、) pipes Determination of initial longitudinal tensile propertiesBS EN 1393 : 1997 Issue 2, March 1998 This British Standard, having been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15
4、April 1997 BSI 1998 The following BSI references relate to the work on this standard: Committee reference PRI/61 Draft for comment 94/340632 DC ISBN 0 580 27069 6 Amendments issued since publication Amd. No. Date Text affected 9904 March 1998 Indicated by a sideline Committees responsible for this B
5、ritish Standard The preparation of this British Standard was entrusted to Technical Committee PRI/61, Plastics piping and components, upon which the following bodies were represented: British Gas plc British Plastics Federation British Plumbing Fittings Manufacturers Association British Valve and Ac
6、tuator Manufacturers Association Chartered Institution of Water and Environmental Management Department of the Environment (British Board of Agre ment) Department of the Environment (Building Research Establishment) Department of the Environment (Property and Buildings Directorate) Department of Tra
7、nsport Electricity Association Federation of Civil Engineering Contractors Health and Safety Executive Institute of Building Control Institute of Materials Institution of Civil Engineers Institution of Gas Engineers National Association of Plumbing, Heating and Mechanical Services Contractors Pipeli
8、ne Industries Guild Plastics Land Drainage Manufacturers Association Society of British Gas Industries Society of British Water Industries Water Companies Association Water Services Association of England and Wales The following bodies were also represented in the drafting of the standard, through s
9、ubcommittees and panels: Association of Consulting Engineers Engineering Equipment and Materials Users Association Institution of Mechanical Engineers RAPRA Technology Ltd.Issue 1, March 1998 BS EN 1393 : 1997 BSI 1998 a Summary of pages The following table identifies the current issue of each page.
10、 Issue 1 indicates that a page has been introduced for the first time by amendment. Subsequent issue numbers indicate an updated page. Vertical sidelining on replacement pages indicates the most recent changes (amendment, addition, deletion). Page Issue Page Issue Front cover Inside front cover a b
11、i ii EN title page 2 3 4 2 2 1 blank original 2 2 original original original 5 6 7 8 9 10 11 12 Inside back cover Back cover 2 2 original original 2 original original blank original 2b blankBS EN 1393 : 1997 BSI 1997 i Contents Page Committees responsible Inside front cover National foreword ii Fore
12、word 2 Method 1 Scope 3 2 Definitions 3 3 Principle 3 4 Apparatus 3 5 Test pieces 5 6 Conditioning 8 7 Test temperature 8 8 Procedure (methods A, B and C) 8 9 Calculation 8 10 Test report 11 Figures 1 Typical pipe grips for a pipe section test piece (method B) 4 2 Shaped test piece dimensions (metho
13、d A) 5 3 Parallel-sided strip test piece dimensions (method A) 6 4 Plate test piece (method C) 7 5 Resin application to the plate test piece 7 6 Determination of the modulus of elasticity 9 7 Detail of neck of the plate test piece 10ii BSI 1998 BS EN 1393 : 1997 Issue 2, March 1998 | | | | National
14、foreword This British Standard has been prepared by Technical Committee PRI/61 and is the English language version of EN 1393 : 1996 Plastics piping systems Glass-reinforced thermosetting plastics (GRP) pipes Determination of initial longitudinal tensile properties, published by the European Committ
15、ee for Standardization (CEN). It is incorporated into BS 2782 Methods of testing plastics: Part 12: Reinforced plastics pipes, fittings and valves, as Methods 1210A to 1210C : 1997, for association with related test methods for plastics materials and plastics piping components, where: Method 1210A c
16、orresponds to method A of EN 1393 (strip test); Method 1210B corresponds to method B of EN 1393 (pipe sections); Method 1210C corresponds to method C of EN 1393 (plates). NOTE. To eliminate ambiguity in sub-clause 9.3.3 the denominator of the equation should be read as either 3D e3e b+2 r ( 1- 1 cos
17、u ) or 3D e3e b+ 2 r ( 1- 1 cosu ) This standard has been prepared for reference by other standards under preparation by CEN for specification of reinforced plastics piping systems and components. It has been implemented to enable experience of the methods to be gained and for use for other fresh ap
18、plications. It is also for use for the revision or amendment of other national standards as practicable, but it should not be presumed to apply to any existing standard or specification which contains or makes reference to a different test method until that standard/specification has been amended or
19、 revised to make reference to this method and any requirements adjusted as appropriate. Warning. This British Standard, which is identical with EN 1393 : 1996, does not necessarily detail all the precautions necessary to meet the requirements of the Health and Safety at Work etc. Act 1974. Attention
20、 should be paid to any appropriate safety precautions and the method should only be operated by trained personnel. Compliance with a British Standard does not of itself confer immunity from legal obligations.CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches K
21、omitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1996 All rights of reproduction and communication in any form and by any means reserved in all countries to CEN and its members. Ref. No. EN 1393 : 1996 E EUROPEAN STANDARD EN 1393 NORME EUROPE ENNE EUROPA ISCHE NORM Septem
22、ber 1996 ICS 23.040.20 Incorporates corrigendum November 1997 Descriptors: Pipelines, plastic tubes, thermoplastic resins, reinforced plastics, glass, tests, determination, tensile strength, elongation at break, modulus of elasticity, computation English version Plastics piping systems Glass-reinfor
23、ced thermosetting plastics (GRP) pipes Determination of initial longitudinal tensile properties Syste mes de canalisations en plastiques Tubes en plastiques thermodurcissables renforcee s de verre (PRV) De termination des proprie te s initiales en traction longitudinale Kunststoff-Rohrleitungssystem
24、e Rohre aus glasfaserversta rkten duroplastischen kunststoffen (GFK) Bestimmung der Anfangs-Zugeigenschaften in La ngsrichtung This European Standard was approved by CEN on 1996-05-09. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving
25、 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 Central Secretariat or to any CEN member. This European Standard exists in three official version
26、s (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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Den
27、mark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 1393 : 1996 BSI 1997 Foreword This European Standard has been prepared by Technical Committee CEN/TC 155, Plastics piping systems and du
28、cting systems, the Secretariat of which is held by NNI. This standard is based on the draft international standard ISO/DIS 8513 Pipes made of glass-reinforced thermosetting plastics (GRP) Initial longitudinal tensile properties Test methods using a strip test piece and a pipe test piece, prepared by
29、 the International Organization for Standardization (ISO). It is a modification of ISO/DIS 8513 for reasons of alignment with texts of other standards on test methods. The modifications are: test parameters (pressure, time, temperature) are not specified; material-dependent or performance requiremen
30、ts are not given; editorial changes have been introduced. The material-dependent and performance requirements are incorporated in the referring standard. This standard is one of a series of standards on test methods which support System Standards for plastics piping systems and ducting systems. This
31、 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 March 1997, and conflicting national standards shall be withdrawn at the latest by March 1997. According to the CEN/CENELEC Internal Regulations, the na
32、tional standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.Page 3 EN 1393 :
33、 1996 BSI 1997 1 Scope This standard specifies three test methods for determining the longitudinal tensile properties of pipes of glass-reinforced thermosetting plastics (GRP). The properties which can be determined are: the longitudinal tensile strength; the percentage ultimate elongation; the long
34、itudinal modulus of elasticity. Method A uses for the test piece(s) a longitudinal strip cut from a pipe. Method B uses a specified length of the full cross-section of the pipe. Method C uses a notched plate cut from a pipe wall section. Method A is applicable to pipes with a nominal size DN 50 or g
35、reater with circumferentially wound filaments, with or without chopped glass and/or woven rovings and/or fillers, and to centrifugally cast pipes. It is applicable to those pipes with helically wound filaments with a nominal size DN 200 or greater. Method B is applicable to all types of GRP pipes. I
36、t is usually used for pipes with a nominal size up to DN 300. Method C is primarily intended for use for helically wound pipes with a winding angle other than approximately 90. This method may also be used for other types of pipe. Results from one method are not necessarily equal to the results deri
37、ved from any of the alternative methods. However, all methods have equal validity. 2 Definitions For the purposes of this standard, the following definitions apply: 2.1 initial longitudinal tensile strength (s 1A * , s 1B * , s 1C * ) The maximum tensile force in the longitudinal direction per unit
38、mean circumference (see 2.6)a t failure (the upper-case subscripts denote the method of test used). It is expressed in newtons per millimetre of circumference. 2.2 ultimate longitudinal tensile stress (s 1 ) The maximum longitudinal tensile force per unit cross-sectional area at failure. It is expre
39、ssed in newtons per square millimetre. 2.3 ultimate elongation (e 1 ) The elongation coincident with the ultimate longitudinal tensile stress (see 2.2). It is expressed as a percentage of an initial gauge length or free length of a test piece. 2.4 longitudinal modulus of elasticity (E 1 ) The longit
40、udinal tensile force per unit cross-sectional area divided by the strain. It is expressed in newtons per square millimetre. 2.5 mean diameter (d m ) The diameter of the circle corresponding with the middle of the pipe wall cross-section. It is given by any of the following: a) the average of the ext
41、ernal diameter of the pipe minus the average of the wall thickness; b) the external circumference of the pipe divided by p (p 3,1416) minus the average of the wall thickness; c) the average of the internal diameter of the pipe plus the average of the wall thickness. It is expressed in millimetres. 2
42、.6 mean circumference The circumference corresponding to the mean diameter (see 2.5) multiplied by p (p 3,1416). It is expressed in millimetres. 3 Principle Test pieces comprising either strips cut longitudinally from a pipe wall segment (method A), a specified length of pipe (method B) or a notched
43、 plate cut from a pipe wall section (method C) are subjected to extension in the longitudinal direction at a constant speed such that fracture occurs within a specified time. The tensile properties are determined using the initial dimensions of the test piece, the tensile force and the elongation. N
44、OTE. It is assumed that the following test parameters are set by the standard making reference to this standard: a) the method to be used, i.e. method A, method B or method C; b) the number of test pieces (see 5.5); c) if applicable, the requirements for conditioning, e.g. temperature, humidity, tim
45、e and associated tolerances (see clause 6); d) the test temperature and its tolerance (see clause 7). e) the properties to be measured (see clause 8); 4 Apparatus 4.1 Tensile testing machine, of the constant rate of cross-head movement type, incorporating the following features: a) a fixed part, fit
46、ted with a grip to hold one end of the test piece without permitting any longitudinal movement thereof, and a moveable part, incorporating a grip to hold the other end of the test piece during extension. The fixed and moving parts and their associated grips (see 4.2) shall enable the test piece to b
47、e aligned when a force is applied so that its longitudinal axis coincides with the direction of this force; b) a drive mechanism, capable of imparting a constant speed of 1 mm/min to the moving part; c) force indicator, capable of measuring the force applied to a test piece which is held in the grip
48、s. The mechanism shall be free from significant inertia lag at the necessary speed of testing and shall indicate or record force, or consequent stress, with an accuracy of within 1 % of the value to be measured.Page 4 EN 1393 : 1996 BSI 1997 Figure 1. Typical grips for a pipe section test piece (met
49、hod B) 4.2 Grips, for holding a test piece. Each of two grips shall be capable of holding one end of the test piece without slip or crushing to an extent that will affect the results obtained. (Grips which tighten automatically may be suitable.) Typical grips for a pipe section test piece (see 5.3) are shown in figure 1. 4.3 Dimension measurement devices, capable of measuring the necessary dimensions of the test piece (e.g. length, width, wall thickness) to an accuracy of half the accura
