《BS-EN-ISO-1269-2006.pdf》由会员分享，可在线阅读，更多相关《BS-EN-ISO-1269-2006.pdf（12页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS EN ISO 1269:2006 Plastics Homopolymer and copolymer resins of vinyl chloride Determination of volatile matter (including water) The European Standard EN ISO 1269:2006 has the status of a British Standard ICS 83.080.20 ? Licensed Copy: London South Bank University, London South Ba
2、nk University, Sat Dec 30 06:31:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 1269:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 December 2006 BSI 2006 ISBN 0 580 49816 6 National foreword This British Standard was publish
3、ed by BSI. It is the UK implementation of EN ISO 1269:2006. It supersedes BS 2782-4:Method 454D:1978 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/82, Thermoplastic materials. A list of organizations represented on PRI/82 can be obtained on requ
4、est to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComment
5、s Licensed Copy: London South Bank University, London South Bank University, Sat Dec 30 06:31:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1269 November 2006 ICS 83.080.20 English Version Plastics - Homopolymer and copolymer resins of vinyl c
6、hloride - Determination of volatile matter (including water) (ISO 1269:2006) Plastiques - Rsines dhomopolymres et de copolymres de chlorure de vinyle - Dtermination des matires volatiles (y compris leau) (ISO 1269:2006) Kunststoffe - Vinylchlorid-Homo- und Copolymerisate - Bestimmung der flchtigen B
7、estandteile (einschlielich Wasser) (ISO 1269:2006) This European Standard was approved by CEN on 11 November 2006. 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
8、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 t
9、ranslation 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greec
10、e, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Managemen
11、t Centre: rue de Stassart, 36 B-1050 Brussels 2006 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 1269:2006: E Licensed Copy: London South Bank University, London South Bank University, Sat Dec 30 06:31:05 GMT+00:00 2006, Uncon
12、trolled Copy, (c) BSI Foreword This document (EN ISO 1269:2006) has been prepared by Technical Committee ISO/TC 61 “Plastics“ in collaboration with Technical Committee CEN/TC 249 “Plastics“, the secretariat of which is held by IBN. This European Standard shall be given the status of a national stand
13、ard, either by publication of an identical text or by endorsement, at the latest by May 2007, and conflicting national standards shall be withdrawn at the latest by May 2007. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound
14、to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland an
15、d United Kingdom. Endorsement notice The text of ISO 1269:2006 has been approved by CEN as EN ISO 1269:2006 without any modifications. EN ISO 1269:2006 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 30 06:31:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIO
16、NAL STANDARD ISO 1269 Third edition 2006-11-15 Reference number ISO 1269:2006(E) Plastics Homopolymer and copolymer resins of vinyl chloride Determination of volatile matter (including water) Plastiques Rsines dhomopolymres et de copolymres de chlorure de vinyle Dtermination des matires volatiles (y
17、 compris leau) EN ISO 1269:2006 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 30 06:31:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii Licensed Copy: London South Bank University, London South Bank University, Sat Dec 30 06:31:05 GMT+00:00 2006, Uncontrolled Cop
18、y, (c) BSI iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subjec
19、t for which a technical committee has been established 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. ISO collaborates closely with the International Electrotechnical Commission (IEC)
20、 on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committee
21、s are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be he
22、ld responsible for identifying any or all such patent rights. ISO 1269 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 9, Thermoplastic materials. This third edition cancels and replaces the second edition (ISO 1269:1980), which has been technically revised. The revision inc
23、ludes an additional method, method B, that uses an automatic thermobalance to determine the volatile-matter content. EN ISO 1269:2006 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 30 06:31:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: London
24、South Bank University, London South Bank University, Sat Dec 30 06:31:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 1 Plastics Homopolymer and copolymer resins of vinyl chloride Determination of volatile matter (including water) 1Scope This International Standard specifies two methods for determinin
25、g the volatile matter (including water) in homopolymer and copolymer resins of vinyl chloride. 2Principle A test portion of resin, spread out in a weighing dish of specified dimensions, is heated at an appropriate temperature to constant mass. 3Apparatus 3.1Method A (using an oven and balance) 3.1.1
26、Oven, capable of being controlled at , with slight natural draught or equipped with a low- speed circulation fan. 3.1.2Weighing dish, shallow, about in diameter and more than in height, made of glass, aluminium or, preferably, stainless steel, with a lid. 3.1.3Balance, capable of weighing to . 3.1.4
27、Desiccator, containing a suitable desiccant. 3.2Method B (using an automatic thermobalance) 3.2.1Oven, capable of being controlled at . 3.2.2Automatic thermobalance, consisting of a precision balance and an IR or halogen oven. The thermobalance automatically evaporates the volatile matter to constan
28、t mass by checking the mass readings. 3.2.3Weighing dish, about in diameter and more than in height, made of aluminium. 3.2.4Balance, capable of weighing to . 3.2.5Desiccator, containing a suitable desiccant. 4Procedure 4.1Method A Bring the oven (3.1.1) to . Heat the dish (3.1.2), with its lid, in
29、the oven for about . Remove and allow to cool in the desiccator (3.1.4) to room temperature. Weigh the dish and lid to the nearest . 110 C 2 C 80 mm5 mm 0,001 g 110 C 2 C 100 mm5 mm 0,001 g 110 C 2 C 1 h 0,005 g EN ISO 1269:2006 Licensed Copy: London South Bank University, London South Bank Universi
30、ty, Sat Dec 30 06:31:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 Spread about of the test sample evenly over the bottom of the dish. Replace the lid and weigh to the nearest . Place the assembly in the oven at . Remove the lid but leave it in the oven and continue heating for about . Remove the
31、assembly from the oven. Replace the lid on the dish. Allow to cool in the desiccator and weigh to the nearest . Following the same procedure, heat in the oven for further periods of until the difference between two successive weighings does not exceed . NOTEProlonged heating at may result in the the
32、rmal degradation of some resins. In such circumstances, it is recommended that the evaporation procedure be conducted at . Carry out two determinations on each test sample. 4.2Method B Bring the oven (3.2.1) to . Heat the aluminium dish (3.2.3) for about . Remove and allow to cool in the desiccator
33、(3.2.5) to room temperature. Place the dish in the automatic thermobalance (3.2.2) and tare it. Spread to , depending on the type of resin, of the test sample evenly over the bottom of the dish and weigh it to the nearest . Set the thermobalance test temperature to the value appropriate to the resin
34、. Switch on the thermobalance heating system and heat until the mass loss per second over a period of is less than . NOTEThese operating conditions have been selected to minimize the effect of thermal degradation. Carry out two determinations on each test sample. 5Expression of results 5.1Method A F
35、or each determination, calculate the percentage of volatile matter (including water) to two decimal places from the formula: where is the mass, in grams, of the empty dish and lid (after heating and cooling); is the mass, in grams, of the dish, lid and test portion before heating; is the mass, in gr
36、ams, of the dish, lid and test portion after heating. If the values of the percentage volatile matter obtained in the two determinations on the test sample differ by less than (absolute), use these values to calculate the mean percentage volatile matter of the test sample, expressing the mean to the
37、 nearest (absolute). 5 g 0,005 g 110 C 2 C 1 h 0,005 g 30 min 0,005 g 110 C 2 C 105 C 2 C 110 C 2 C 1 h 5 g15 g 0,005 g 2 min 0,02 mg m2 m3 m2 m1 100 m1 m2 m3 0,10 % 0,01 % EN ISO 1269:2006 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 30 06:31:05 GMT+00:00 2006,
38、 Uncontrolled Copy, (c) BSI 3 If this is not the case, carry out further determinations until two values satisfying this requirement are obtained. However, if the two values obtained for the percentage volatile matter are each less than , use these values to calculate the mean value for the test sam
39、ple irrespective of the absolute difference between them. NOTEFor many purposes, for example the designation of a resin, the expression of the mean value of the percentage volatile matter to one decimal place is sufficient. 5.2Method B For each determination, the result is calculated automatically b
40、y the automatic thermobalance. It is expressed as a percentage to two decimal places. If the values of the percentage volatile matter obtained in the two determinations on the test sample differ by less than (absolute), use these values to calculate the mean percentage volatile matter of the test sa
41、mple, expressing the mean to the nearest (absolute). If this is not the case, carry out further determinations until two values satisfying this requirement are obtained. However, if the two values obtained for the percentage volatile matter are each less than , use these values to calculate the mean
42、 value for the test sample irrespective of the absolute difference between them. NOTEFor many purposes, for example the designation of a resin, the expression of the mean value of the percentage volatile matter to one decimal place is sufficient. 6Precision Method A: An interlaboratory test programm
43、e has given a reproducibility of (absolute). Method B: An interlaboratory test programme, carried out within one company, has given a reproducibility of (absolute). 7Test report The test report shall include the following particulars: a)a reference to this International Standard; b)all details neces
44、sary for complete identification of the product tested; c)the method used, i.e. method A or method B; d)the temperature used to heat the test portion in method A; e)the mass of the test portion, the temperature and the test duration in method B; f)the result, expressed in accordance with 5.1 or 5.2;
45、 g)details of any circumstances which may have affected the result. 0,30 % 0,10 % 0,01 % 0,30 % 0,10 % 0,10 % EN ISO 1269:2006 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 30 06:31:05 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 1269:2006 BSI 389 Chiswic
46、k High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by
47、 amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Stand
48、ard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive
49、the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: ordersbsi-. Standards are also available from the BSI website at http:/www.bsi-. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been p