BS EN 12061-1999 塑料管道系统.热塑配件.耐冲击的试验方法.pdf

| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 120611999 BS 2782-11 1108D1999 The European Standard EN 120611999 has the status of a British Standard ICS 23.040.45 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Plastics piping systems Thermoplastics fittings Test for impact resistance This British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 July 1999  BSI 07-1999 ISBN 0 580 32545 8 BS EN 120611999 Amendments issued since publication Amd. No.DateComments National foreword This British Standard is the English language version of EN 120611999. The UK participation in its preparation 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 ined; 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 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. A British Standard does not purport to include 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 title page, pages 2 to 4, an inside back cover and a back cover. CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat rue de Stassart 36, B-1050 Brussels  1999 CEN All rights of exploitation in any and by any means reserved worldwide for CEN national Members. Ref. No. EN 120611999 E EUROPEAN STANDARDEN 12061 NORME EUROPE ENNE EUROPA ISCHE NORM January 1999 ICS 23.040.45 Descriptors plastic tubes, pipe fittings, thermoplastic resins, impact tests, shock resistance English version Plastics piping systems Thermoplastics fittings Test for impact resistance Syste mes de canalisation en plastique Raccords en thermoplastique Me thode dessai de re sistance au choc Kunststoff-Rohrleitungssysteme stu cke aus Thermoplasten Pru fverfahren der Schalgza higkeit This European Standard was approved by CEN on 30 November 1998. 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 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 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Page 2 EN 120611999  BSI 07-1999 Foreword This European Standard has been prepared by Technical Committee CEN/TC 155, Plastics piping systems and ducting systems, the Secretariat of which is held by NNI. 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 July 1999, and conflicting national standards shall be withdrawn at the latest by July 1999. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. This standard is based on the test described in 6.2.1 of ISO 44351991, Unplasticized polyvinyl chloride PVC-U pipes and fittings for buried drainage and sewerage systems Specifications, prepared by the International Organization for Standardization ISO. It is a modification of ISO 44351991 for reasons of applicability to other plastics materials and/or other test conditions and alignment with texts of other standards on test s. The modifications are editorial changes have been introduced; the possibility of specifying the position from which the fitting shall be dropped is introduced; assessment of the effect of the test impact on watertightness is introduced. The material-dependent parameters and/or perance requirements are incorporated in the System Standards concerned. This standard is one of a series of standards on test s that support System Standards for plastics piping systems and ducting systems. Contents Page Foreword2 1Scope3 2Principle3 3Apparatus3 4Test pieces3 5Conditioning3 6Procedure3 7Expression of results4 8Test report4 Page 3 EN 120611999  BSI 07-1999 1 Scope This standard specifies a for testing the impact resistance of fittings by dropping them onto a rigid surface. For a fitting with seal retaining components, such as seal retaining caps or rings, the includes assessment of the watertightness of the fittings when the fixing elements show disturbance as a result of the test. This standard is applicable to fittings made from thermoplastics materials intended to be used for buried and above ground applications. 2 Principle The impact resistance of a fitting is tested by dropping the fitting onto a rigid surface. After impact, the fitting is inspected for any cracks visible without magnification. In the case of fittings with separate fixing elements, e.g. for seal retention, these elements are inspected for any permanent disturbance that could cause loss of watertightness. NOTEIt is assumed that the following test parameters are set by the standard making reference to this standard a test temperature see clause 3; b sampling procedure and frequency see clause4; c conditioning time and temperature as applicable see clause 5; d the height through which the test piece is to be dropped see clause 6; e the point of impact that is to hit the test base when dropped see clause 6; f test conditions for assessment of watertightness see clauses 6 and 7. 3 Apparatus 3.1 Refrigerator or liquid bath, capable of maintaining the conditioning temperature within2 8C. 3.2 Temperature-controlled environment, capable of maintaining the test temperature within2 8C. 3.3 Test base, comprising a solid floor made of concrete or stone at least 100 mm thick or alternatively a slab of concrete with a minimum thickness of 100 mm and a mass at least 20 times that of the test piece. The surface shall be rigid, flat, smooth and horizontal. 4 Test pieces 4.1 Test piece The test piece shall comprise a sample fitting complete, where applicable, with the sealing element and any associated means of fixing elements in place. 4.2 Sampling The sampling procedure and frequency shall be as specified in the referring standard. 4.3 Number Unless otherwise specified in the referring standard, the number of test pieces shall be five for sizes up to and including 200 mm and three for sizes greater than 200 mm. 5 Conditioning Determine and measure the maximum wall thickness, e, of the sample fitting. Place the test piece in the refrigerator, liquid bath or temperature-controlled environment 3.1 and 3.2 at the specified test temperature for at least the applicable minimum period given in Table 1, unless otherwise specified in the referring standard. Table 1 Minimum conditioning period Wall thickness eMinimum conditioning period mmh e 3 3 e 8 8 e 16 16 e 1 3 6 16 6 Procedure 6.1 For each test piece in turn, remove the fitting from the conditioning environment and drop it on the test base in accordance with 6.2 within the applicable time limits given in Table 2. Table 2 Maximum period between conditioning and testing Conditions for testing in accordance with 6.2 Maximum time limit s Without temperature control coning to 3.2 for dn 630 60 Temperature controlled environment 3.2 with refrigerator or liquid bath in the same environment 60 6.2 Release the fitting from the specified drop height in such an attitude that the specified point of impact hits the test base. NOTEThe position from which the fitting shall be dropped in order to hit the specified impact point, may be decided by preliminary testing with each specific fitting type. 6.3 Inspect each fitting for and record the presence and positions of any cracks or splits visible without magnification. Disregard any surface scratches, scuffing or chipping of edges which may occur during the test. Assess the condition and/or assembly of the test piece for watertightness as necessary using the applicable test s as specified by the referring standard to express the result in accordance with clause 7. Page 4 EN 120611999  BSI 07-1999 7 Expression of results 7.1 Unless otherwise specified in the referring standard, if the fitting shows no cracks through the wall and the condition in 7.2 is coned to, express the result as No damage. 7.2 If during the test the fixing element jumps off the fitting body and the element can be restored manually to its correct position, e.g. to give a watertight joint, and the condition in 7.1 is coned to, express the result as No damage. 7.3 If the fitting shows cracks through the wall or if the fixing element has jumped off the fitting without the possibility of restoring it in such a way that watertight jointing is achieved, then express the result as Damage. 8 Test report The test report shall include the following ination a a reference to this standard and to the referring standard; b complete identification of the fitting under test; c the test temperature; d the height from which the fittings was were dropped; e the point of impact; f for each test piece, the results of the test and any associated ination; g any factors which may have affected the results, such as any incidents or any operating details not specified in this standard; h the date of the test. blank BS EN 120611999 BS 2782-11 1108D1999 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. 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