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1、BRITISH STANDARD BS EN ISO 2535:2002 Plastics Unsaturated polyester resins Measurement of gel time at ambient temperature The European Standard EN ISO 2535:2002 has the status of a British Standard ICS 83.080.10 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:38:36 GMT+00:00 2006, Uncont
2、rolled Copy, (c) BSI BS EN ISO 2535:2002 This British Standard, having been prepared under the direction of the Materials and Chemicals Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 22 November 2002 BSI 22 November 2002 ISBN
3、 0 580 40782 9 National foreword This British Standard is the official English language version of EN ISO 2535:2002. It is identical with ISO 2535:2001. It supersedes BS EN ISO 2535:1998 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/42, Fibre re
4、inforced thermosetting plastics and prepregs, which has the responsibility to: 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
5、 may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Use
6、rs are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change
7、, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to
8、9, the Annex ZA page, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:38:36 GMT+00:00 2006, Uncont
9、rolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2535 November 2002 ICS 83.080.10Supersedes EN ISO 2535:1998 English version Plastics - Unsaturated polyester resins - Measurement of gel time at ambient temperature (ISO 2535:2001) Plastiques - Rsines de polyesters non sat
10、urs - Mesurage du temps de gel temprature ambiante (ISO 2535:2001) Kunststoffe - Ungesttigte Polyesterharze - Bestimmung der Gel-Zeit bei Umgebungstemperatur (ISO 2535:2001) This European Standard was approved by CEN on 23 September 2002. CEN members are bound to comply with the CEN/CENELEC Internal
11、 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 Management Centre or to any CEN member. Thi
12、s 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 Management Centre has the same status as the official versions. CEN members are the
13、national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EU
14、ROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2002 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 2535:2002 E Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:38:36 GMT+00:00 2006,
15、 Uncontrolled Copy, (c) BSI Foreword The text of ISO 2535:2001 has been prepared by Technical Committee ISO/TC 61 “Plastics“ of the International Organization for Standardization (ISO) and has been taken over as EN ISO 2535:2002 by Technical Committee CEN/TC 249 “Plastics“, the secretariat of which
16、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 May 2003, and conflicting national standards shall be withdrawn at the latest by May 2003. This document supersedes EN ISO 2535:1998
17、. 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, Malta, Netherlands, No
18、rway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 2535:2001 has been approved by CEN as EN ISO 2535:2002 without any modifications. NOTE Normative references to International Standards are listed in Annex ZA (normative). EN ISO 2535:2002 Licensed C
19、opy: sheffieldun sheffieldun, na, Mon Nov 20 02:38:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 2535:2001(E) INTERNATIONAL STANDARD ISO 2535 Third edition 2001-07-15 Plastics Unsaturated-polyester resins Measurement of gel time at ambient temperature Plastiques Rsines de polyes
20、ters non saturs Mesurage du temps de gel temprature ambiante EN ISO 2535:2002 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:38:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI DPF dlcsiremia ihTs PDF file mya ctnoain emdeddeb tyfepcaes. In ccacnadroe with Aebods licnesign lopic,y tihs file
21、mya eb irpntde ro ivwede tub slahl ton eb idetde lnuess teh tyfepacse wihch era emdeddeb era licnesde to dna itsnlalde no teh cmouptre frepromign teh idetign. In wodlnidaogn tihs f,eli trapies accept tniereh teh sersnoptilibiy of ton nifrgnigni Asebod licsnegni ilopcy. ehT ISO tneClar Secteraairt ac
22、cepts no lilibaity ni this .aera Aebod is a tedarmkra fo Aebod Stsyems Icntaropro.de teDials fo teh sfotwera cudorpts sude to crtaee tihs PFD file cna eb fdnuo in teh Glarene Ifno lertaiev to the fil;e teh Pc-FDaertino arapmteres wree tpoimizde fro irptnign. Evyre cera sah neeb tkane to neseru taht
23、teh file is siutlbae fro sue yb ISO memebr idob.se In teh lnuikley tneve ttah a lborpem leratign to it is f,dnuo lpsaee ifnrom teh tneClar Sceteriraat at teh sserdda igvne lebwo. ISO 1002 All rhgits rsevre.de elnUss towrehise scepfidei, on trap of tihs cilbuptanoi mya eb cudorperde ro utzilide ni yn
24、a form ro yb yna snaem, eelctinorc ro mceinahcla, inclidugn tohpociypogn dna micrfoilm, wittuoh repmissino in writign form eitreh ISO ta teh erddass lebwo ro ISOs memreb ydob in teh ctnuoyr of teh tseuqer.re ISO cirypothg fofice saCe tsopale 65 ? 1121-HC aveneG 02 leT. + 41 22 947 10 11 xaF + 14 22
25、947 90 74 E-mial cirypothgis.och eWb www.iso.ch ii EN ISO 2535:2002 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:38:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iii ContentsPage Foreword.iv 1Scope 1 2Normative references1 3Terms and definitions .1 4Principle1 5Reagents.2 6Apparatus.2 7
26、Procedure.3 8Expression of results 4 9Precision.4 10Test report4 Annex A (normative) Automatic-release apparatus 5 Annex B (normative) Continuous-measurement apparatus.7 EN ISO 2535:2002 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:38:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv For
27、eword 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 subject for which a tech
28、nical 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) on all matters of
29、 electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requ
30、ires 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 International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Stand
31、ard ISO 2535 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 12, Thermosetting materials. This third edition cancels and replaces the second edition (ISO 2535:1997), which has been revised to include four variants of the original method, calibration procedures for the device
32、 used to determine the gel time (see clauses A.2 and B.2) and precision data. Annexes A and B form a normative part of this International Standard. EN ISO 2535:2002 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:38:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTENRATIONAL TSANDADRISO 53
33、52:(1002)E Plastics Unsaturated-polyester resins Measurement of gel time at ambient temperature 1Scope This International Standard specifies methods of measuring, under defined conditions, the gel time at ambient temperature (i.e. within the range 18 C to 30 C) of unsaturated-polyester resins. The r
34、eferee temperature, if needed, is 25 C. 2Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications d
35、o not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Me
36、mbers of ISO and IEC maintain registers of currently valid International Standards. ISO 472:1999, Plastics Vocabulary. ISO 4619:1998, Driers for paints and varnishes. ISO 15038:1999,Plastics Organic-perestercrosslinkingagentsforunsaturated-polyesterthermosetting materials Determination of active-oxy
37、gen content. 3Terms and definitions For the purposes of this International Standard, the terms and definitions given in ISO 472 apply, together with the following term and definition. 3.1 gel time at ambient temperature the time which elapses between the end of the addition of an initiator to a resi
38、n and the moment when the viscosity reaches 50 Pa?s 4Principle The time required for a defined formula (resin, accelerator, initiator) at ambient temperature (within the range 18 C to 30 C) to reach a viscosity of 50 Pa?s (the viscosity conventionally accepted as corresponding to the gel state) is m
39、easured. 1 EN ISO 2535:2002 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:38:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 5352:(1002)E 2 ISO 1002 All rights rsedevre Four methods are specified: Method A1 uses an automatic-release device (see annex A) in which a glass rod rotates in
40、a resin mixture contained in a test tube, and rotation of the glass rod is stopped automatically when a viscosity of 50 Pa?s is reached. Method A2 also uses an automatic-release device, but the resin mixture is contained in a beaker. Method B1 uses a continuous-measurement device (see annex B) in wh
41、ich a glass rod executes a horizontal oscillatory motion in a resin mixture contained in a test tube. The viscosity is measured continuously to obtain a plot of viscosity against time. Method B2 also uses a continuous-measurement device, but the resin mixture is contained in a beaker. 5Reagents Use
42、only reagents of recognized analytical grade. 5.1Toluene. 5.2Reference accelerator: cobalt octoate solution containing 0,6 % by mass of Co. This solution may, for example, be prepared as follows: Pipette 5 ml of a stock solution of cobalt octoate, containing 6 % by mass of Co, in an inert solvent (f
43、or example an aliphatic ester) into a volumetric flask fitted with a ground-glass stopper. Dilute to 50 ml with toluene (5.1) and mix well by shaking. 1 ml of this solution corresponds to 0,100 g of the stock solution of cobalt octoate containing 6 % by mass of Co. If it is necessary to determine th
44、e Co content of any solutions, this shall be done in accordance with ISO 4619. 5.3Reference initiator: 50 % by mass solution of methyl ethyl ketone peroxide in dimethyl phthalate, the solution assaying 9 % of active oxygen. Check the active-oxygen content using the method specified in ISO 15038. It
45、is desirable to store the peroxide solution at low temperature (5 C), e.g. in a refrigerator. In this case, the solution shall be maintained at room temperature for 24 h prior to use. WARNING Never mix the methyl ethyl ketone peroxide with the cobalt octoate solution, as an explosive mixture is form
46、ed. Mix each separately into the unsaturated-polyester resin. 6Apparatus 6.1Measurement vessel, capable of containing the quantity of mixture required for the determination: ?for methods A1 and B1, borosilicate-glass test tube, minimum length 150 mm, internal diameter 18 mm; ?for methods A2 and B2,
47、polypropylene beaker, capacity 50 ml. 2 EN ISO 2535:2002 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 20 02:38:36 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 5352:(1002)E ISO 1002 All rights rsedevre3 6.2Viscosity-measurement device: any device which can be calibrated and is capable of mea
48、suring a viscosity of 50 Pa?s (?2 Pa?s) with the least possible effect on the viscosimetric properties of the mixture; the shear rate shall be negligible. NOTEExamples of suitable automatic-release and continuous-measurement devices are described in annexes A and B, respectively. 6.3Water bath, ther
49、mostatically controlled to within?0,5 C of the test temperature (which will be within the range 18 C to 30 C) and protected from light. 6.4Glass beaker, capacity 100 ml, for preparing the resin mixture. 6.5Two graduated pipettes, capacity 1 ml, with 0,01 ml graduations, or two precision microburettes, of at least equivalent accuracy. IMPORTANT The pipettes (or microburettes) shall be clearly identified (accelerator, initiator) to