BS-EN-ISO-9396-1996 BS-2782-8-METHODS-835F----G.pdf
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1、BRITISH STANDARD BS EN ISO 9396:1996 BS 2782-8: Methods 835 F and G:1996 Plastics Phenolic resins Determination of the gel time at a given temperature using automatic apparatus The European Standard EN ISO 9396:1995 has the status of a British Standard ICS 83.080.10 Licensed Copy: sheffieldun sheffi
2、eldun, na, Mon Nov 20 02:14:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 9396:1996 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 January
3、1996 BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference PRI/21 Draft for comment 88/37709 DC ISBN 0 580 25102 0 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee PRI/21, Testin
4、g of plastics, upon which the following bodies were represented: The British Apparel and Textile Confederation British Plastics Federation Department of the Environment (Building Research Establishment) Department of Trade and Industry (National Physical Laboratory) Electrical and Electronic Insulat
5、ion Association (BEAMA Ltd.) GAMBICA (BEAMA Ltd.) Institute of Materials Ministry of Defence Packaging and Industrial Films Association Pira International RAPRA Technology Ltd. Royal Society of Chemistry Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun,
6、 na, Mon Nov 20 02:14:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 9396:1996 BSI 12-1999i Contents Page Committees responsibleInside front cover National forewordii Foreword2 1Scope3 2Preparation of test portions3 3Method A: apparatus with rotary stirrer3 4Method B: apparatus with vertica
7、lly reciprocating stirrer4 Figure 1 Rotating-stirrer apparatus for determining gel time4 Figure 2 Reciprocating-plunger apparatus for determining gel time5 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:14:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN ISO 9396:1996 ii BSI 12-1999 Na
8、tional foreword This British Standard has been prepared by Technical Committee PRI/21 and is the English language version of EN ISO 9396:1995 Plastics Phenolic resins Determination of the gel time at a given temperature using automatic apparatus published by the European Committee for Standardizatio
9、n (CEN). It is identical with ISO 9396:1989 published by the International Organization for Standardization (ISO). EN ISO 9396 was produced as a result of international discussions in which the United Kingdom took an active part. This standard is related to methods 835A and 835C of BS 2782. A Britis
10、h 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
11、cover, an inside front cover, pages i and ii, the EN ISO title page, pages 2 to 5 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffi
12、eldun, na, Mon Nov 20 02:14:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9396 July 1995 ICS 83.080.10 Descriptors: Plastics, phenoplasts, resins, tests, determination, gelation English version Plastics Phenolic resins Determination of the gel
13、 time at a given temperature using automatic apparatus (ISO 9396:1989) Plastiques Rsines phnoliques Dtermination de la dure de glification une temprature donne sur appareils automatiques (ISO 9396:1989) Kunststoffe Phenolharze Bestimmung der Gelierzeit mit einem Automaten bei vorgegebener Temperatur
14、 (ISO 9396:1989) This European Standard was approved by CEN on 1994-12-14. 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 bibliog
15、raphical 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
16、 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, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Sp
17、ain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1995 All rights of reproduction and communication in any form and by any means reserved in al
18、l countries to CEN and its members. Ref. No. EN ISO 9396:1995 E Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:14:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 9396:1995 BSI 12-1999 2 Foreword The text of the International Standard from ISO/TC 61, Plastics, of the International Org
19、anization for Standardization (ISO) has been taken over as a European Standard by the Technical Committee CEN/TC 249, Plastics. 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 January 1996, and co
20、nflicting national standards shall be withdrawn at the latest by January 1996. According to CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Nethe
21、rlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:14:11 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 9396:1995 BSI 12-19993 1 Scope This International Standard specifies two methods for determining the gel time
22、 of phenolic resins at a given temperature, using automatic apparatus under specified conditions. The test temperatures are 100 C, 130 C and 150 C. The two methods specified, which utilize different kinds of automatic apparatus, are: a) method A (clause 3), which employs a glass rod driven to carry
23、out a rotary (spinning) motion; b) method B (clause 4), which employs a plunger driven to carry out a reciprocating vertical motion. These methods apply to the following types of phenolic resin: liquid resols (methods A and B); novolak solutions containing hexamethylenetetramine (HMTA); the boiling
24、point of the solvent must be higher than the test temperature (method A); solid resols with low melting points (method B). Powdered resins with a short gel time, such as mixtures of novolak and HMTA, do not lend themselves to this type of determination. Such resins crosslink as soon as fusion starts
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