BS-EN-1989-2000 BS-2782-11-METHOD-1112E-2000.pdf
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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1989:2000 BS 2782-1
2、1: Method 1112E:2000 The European Standard EN 1989:2000 has the status of a British Standard ICS 23.040.80 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Thermoplastics piping systems Joints for buried non-pressure sewerage applications Test method for long-term sealing perfo
3、rmance of joints with thermoplastic elastomer (TPE) seals by estimating the sealing pressure Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:50:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Sector Committee for Material
4、s and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 July 2000 BSI 07-2000 ISBN 0 580 36079 2 BS EN 1989:2000 Amendments issued since publication Amd. No.DateComments National foreword This British Standard is the official English language version
5、 of EN 1989:2000. The test method is incorporated into BS 2782-11, Methods of testing plastics Part 11: Thermoplastics pipes, fittings and valves, as Method 1112E:2000, for association with related test methods for plastics materials and plastics piping components. The UK participation in its prepar
6、ation was entrusted to Technical Committee PRI/61, Plastics piping systems and components, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests info
7、rmed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in
8、 this document may be found in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. Warning This British Standard, which is identical with EN 1989:2000, does not necessarily detai
9、l all the precautions necessary to meet the requirements of the Health and Safety at Work etc. Act 1974 and subsequent legislation. Attention should be paid to any appropriate safety precautions and the method should be operated only by trained personnel. A British Standard does not purport to inclu
10、de all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN
11、 title page, pages 2 to 9 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:50:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BSI 07-2000 (8523($1?67$1$5 1250(?(8523e(11( (8523b,
12、6 b) if applicable, any change to the limit(s) between the time of production of the seal and the start up of testing (see 6.1). 4? Apparatus 4.1 A device, capable of measuring the specific radial sealing force exerted by a seal onto a mandrel. The apparatus consists of a steel cylinder, the mandrel
13、, of which a segment can compress the seal in the radial direction (see 7.2.2). The surface width, C, of the segment (see Figure 1) shall have a value lying between 5 % and 10 % of the circumference of the mandrel. The segment is linked to an instrument capable of measuring the compression forces wi
14、th an accuracy to within 5 % of the measured value, and with a means of measuring displacements greater than 10 micrometres (10 m) with an accuracy of 1 m. ? A typical arrangement of the mandrel and segment is shown in Figure 1. The mandrel shall have the minimum specified outside diameter of the pi
15、pe or spigot (tolerance: ? ? ? + mm on the diameter) for which the socket is intended. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:50:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 1989:2000 BSI 07-2000 Key: FS: radial force connected to a force measuring device A: segment M:
16、mandrel S: seal C: surface width of the segment ? Figure 1 Typical arrangement of mandrel and segment 4.2 Sealing width measuring device, capable of measuring the sealing width, to an accuracy to within 0,1 mm. The sealing width comprises the width of the circular contact area formed between the sea
17、ling ring and the pipe or fitting spigot, as shown in Figure 2. This shall include the following: a)?a transparent pipe spigot having an outside diameter equal to the minimum specified outside diameter (tolerance: ? ? + mm on the diameter) of the pipe for which the socket with the sealing ring is de
18、signed, and having a length of at least the depth of the socket; b)?an optical device with a light source for viewing and measuring the sealing width. ?NOTE 1 A typical apparatus for measuring sealing width is shown in Figure 2. This shows a mirror placed in the pipe socket at an angle of (45 0,5) t
19、o the axial direction of the socket such that the image of the seal in contact with the spigot is reflected into a microscope with a graduated scale. ?NOTE 2 If the seal has multiple lips, each individual lip will produce a circular contact area. The total width of the circular contact areas shall b
20、e measured. Key: S: seal T: transparent spigot SW: sealing width ? Figure 2 Typical apparatus for measurement of the sealing width Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:50:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 5 EN 1989:2000 BSI 07-2000 5? Test pieces 5.1? Sampling ?
21、 Unless otherwise specified see clause 3, note a), samples shall be taken at random. 5.2? Preparation ? At least one pair of test pieces is needed, of which one test piece shall be used for measuring the radial specific sealing force and the other test piece for measuring the sealing width. Each tes
22、t piece shall consist of at least a complete socket cut from a pipe or a fitting, together with its TPE seal. 5.3? Number ? Unless otherwise specified see clause 3, note a) one pair of test pieces shall be used. 6? Conditioning 6.1? Time limits ? Unless otherwise specified in the referring standard,
23、 the time between production of the seal and start up of the test shall be between 24 h and 90 days. 6.2? Test temperature ? Tests shall be carried out at (23 2) C in accordance with ISO 471. 7? Procedure 7.1? General ? Carry out the following procedures using the following schedule. ? Carry out the
24、 first measurements of both the radial specific sealing force (see 7.2) and the sealing width (see 7.3) between 30 min and 60 min after assembling the test pieces with the apparatus. ? To enable extrapolation, measure and record the radial specific sealing force and the sealing width at periods whic
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- BS-EN-1989-2000 BS-2782-11-METHOD-1112E-2000 BS EN 1989 2000 2782 11 METHOD 1112
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