BS-EN-ISO-1264-1997 BS-2782-4-METHOD-454C-1997.pdf
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1、BRITISH STANDARD BS EN ISO 1264:1997 BS 2782-4: Method 454C:1997 Plastics Homopolymer and copolymer resins of vinyl chloride Determination of pH of aqueous extract The European Standard EN ISO 1264:1997 has the status of a British Standard ICS 83.080.20 Licensed Copy: sheffieldun sheffieldun, na, Mo
2、n Nov 20 02:16:33 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 1264:1997 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 September 1997 BSI 09
3、-1999 ISBN 0 580 28504 9 National foreword This British Standard is the English language version of EN ISO 1264:1997. It is identical with ISO 1264:1980. It supersedes BS 2782-4:Method 454C:1978 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/34,
4、Vinyl chloride, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments
5、 and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications w
6、ith their corresponding or European publications. 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” fa
7、cility 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 obli
8、gations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN ISO title page, page 2, the ISO title page, pages ii to iv, pages 1 and 2 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. Thi
9、s will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:16:33 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 1264:1997 BSI 09-1999i Contents Page National forewordIn
10、side front cover Foreword2 Forewordiii Text of ISO 12641 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:16:33 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:16:33 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NO
11、RME EUROPENNE EUROPISCHE NORM EN ISO 1264 July 1997 ICS Descriptors: See ISO document English version Plastics Homopolymer and copolymer resins of vinyl chloride Determination of pH of aqueous extract (ISO 1264:1980) Plastiques Rsines dhomopolymres et de copolymres de chlorure de vinyle Dtermination
12、 du pH de lextrait aqueux (ISO 1264:1980) Kunststoffe Vinylchlorid-Homo- und Copolymerisate Bestimmung des pH-Wertes des wrigen Extraktes (ISO 1264:1980) This European Standard was approved by CEN on 1997-06-13. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulat
13、e 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. The European Standards exist
14、 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 bodie
15、s of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normun
16、g Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 1264:1997 E Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:16:33 GMT+00:00 2006, Uncontrolled Copy, (c)
17、BSI EN ISO 1264:1997 BSI 09-1999 2 Foreword The text of the International Standard from Technical Committee ISO/TC 61 “Plastics” of the International Organization for Standardization (ISO) has been taken over as an European Standard by Technical Committee CEN/TC 249 “Plastics”, the secretariat of wh
18、ich is held by IBN. 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 month of January 1998, and conflicting national standards shall be withdrawn at the latest by January 1998. According to the CEN
19、/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
20、, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard ISO 1264:1980 has been approved by CEN as a European Standard without any modification. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:16:33 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed
21、Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:16:33 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 1264:1997 ii BSI 09-1999 Contents Page Forewordiii 1Scope and field of application1 2Principle1 3Reagent1 4Apparatus1 5Procedure1 6Expression of results1 7Test report1 Annex Recommended method fo
22、r the de-activation of glassware2 Descriptors: Plastics, homopolymers, copolymers, vinyl chloride, resins, tests, determination, pH. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:16:33 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 1264:1997 BSI 09-1999iii Foreword ISO (the Internatio
23、nal Organization for Standardization) is a worldwide federation of national standards institutes (ISO member bodies). The work of developing International Standards is carried out through ISO technical committees. Every member body interested in a subject for which a technical committee has been set
24、 up has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acce
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