BS-EN-12118-1998 BS-2782-11-METHOD-1103C-1998.pdf
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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12118 : 1998 BS 278
2、2 : Part 11 : Method 1103C : 1998 The European Standard EN 12118 : 1997 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 Determination of moisture content in thermoplastics by coulometry Licensed Copy: s
3、heffieldun sheffieldun, na, Sat Oct 28 15:02:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 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 March 1998
4、BSI 1998 ISBN 0 580 29105 7 BS EN 12118 : 1998 Amendments issued since publication Amd. No.DateText affected National foreword This British Standard is the English language version of EN 12118 : 1997, published by the European Committee for Standardization (CEN). This standard has the secondary iden
5、tifier BS 2782 : Part 11 : Method 1103C, so that it is cross-referenced within the existing series of British Standards which cover related test methods for plastics materials and plastics piping components. The UK participation in its preparation was entrusted to Technical Committee PRI/61, Plastic
6、s 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 informed; monitor related international and European developme
7、nts and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. The test method supports other standards that are in preparation by CEN for the specification of plastics piping and ducting systems and components. It may be used fo
8、r the revision or amendment of other national standards, 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 revised to make reference to this method. Cross
9、-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 Cat
10、alogue. WARNING. This British Standard, which is identical with EN 12118 : 1997, does not necessarily detail all the precautions necessary to meet the requirements of the Health and Safety at Work etc. Act 1974. Attention should be paid to any appropriate safety precautions and the method should be
11、operated only by trained personnel. 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. Licensed Copy: shef
12、fieldun sheffieldun, na, Sat Oct 28 15:02:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 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 1997 CEN All rights of exploitation in any
13、form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12118 : 1997 E EUROPEAN STANDARDEN 12118 NORME EUROPE ENNE EUROPA ISCHE NORM August 1997 ICS 83.080.20; 83.140.30 Descriptors: Plastic tubes, plastics, chemical analysis, determination of content, water, coulometric metho
14、ds English version Plastics piping systems Determination of moisture content in thermoplastics by coulometry Syste mes de canalisations en plastiques De termination par coulome trie de la teneur en eau dans les matie res thermoplastiques Kunststoff-Rohrleitungssysteme Bestimmung des Feuchtegehaltes
15、in Thermoplasten mittels Coulometrie This European Standard was approved by CEN on 1997-05-28. 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-da
16、te 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
17、 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, Luxembour
18、g, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 15:02:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 12118 : 1997 BSI 1998 Foreword This European Standard has been prepared by Technical Committee CEN/TC
19、155, Plastics piping systems and ducting systems, the secretariat of which is held by NNI. The material-dependent parameters and/or performance requirements are incorporated in the system standard(s) concerned. This standard is one of a series of standards on test methods which support system standa
20、rds for plastics piping systems and ducting systems. 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 February 1998, and conflicting national standards shall be withdrawn at the latest by February
21、1998. 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, Norwa
22、y, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 15:02:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 12118 : 1997 BSI 1998 1)ppm = parts per million. 1 Scope This standard specifies a method for the determination of mois
23、ture content in thermoplastics. This method is only applicable to thermoplastics for which the melting point is below 160 8C. The method is suitable for measuring the moisture content down to 0,005 %. This method determines the total moisture content in the test piece and includes surface moisture a
24、nd moisture contained within the test piece. Because the test piece is converted to a molten state, it is assumed that all moisture is expelled. 2 Principle After calibration of a moisture analyser (see 4.1 and 6.2), a test piece is heated to (1655) 8C for 10 min. The oven cell and the measuring cel
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- BS-EN-12118-1998 BS-2782-11-METHOD-1103C-1998 BS EN 12118 1998 2782 11 METHOD 1103
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