1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 1133-2:2011Plastics Determination of themelt mass-flow rate (MFR) andmelt volume-flow rate (MVR)of thermoplasticsPart 2: Method for materials sensitive totime-temperatu
2、re history and/or moisture(ISO 1133-2:2011)Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 1133-2:2011 BRITISH STANDARDNational forewordThis British Standard is the UK
3、implementation of EN ISO1133-2:2011. Together with BS EN ISO 1133-1:2011, it supersedes BSEN ISO 1133:2005 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/21, Testing of plastics.A list of organizations represented on this committee can beobtained o
4、n request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012ISBN 978 0 580 63355 3ICS 83.080.20Compliance with a British Standard cannot confer immunity from
5、legal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 January 2012.Amendments issued since publicationDate T e x t a f f e c t e dCopyright European Committee for Standardization Provided by IHS under license with CENNot for Res
6、aleNo reproduction or networking permitted without license from IHS-,-,-EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1133-2 December 2011 ICS 83.080.20 Supersedes EN ISO 1133:2005English Version Plastics - Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of
7、thermoplastics - Part 2: Method for materials sensitive to time-temperature history and/or moisture (ISO 1133-2:2011) Plastiques - Dtermination de lindice de fluidit chaud des thermoplastiques, en masse (MFR) et en volume (MVR) - Partie 2: Mthode pour les matriaux sensibles lhistorique temps-temprat
8、ure et/ou lhumidit (ISO 1133-2:2011) Kunststoffe - Bestimmung der Schmelze-Masseflierate (MFR) und der Schmelze-Volumenflierate (MVR) von Thermoplasten - Teil 2: Verfahren fr Materialien, die empfindlich gegen eine zeit- bzw. temperaturabhngige Vorgeschichte und/oder Feuchte sind (ISO 1133-2:2011) T
9、his European Standard was approved by CEN on 30 November 2011. 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 bibliographical ref
10、erences concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre 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 C
11、EN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, I
12、celand, 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 Management Centre: Ave
13、nue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 1133-2:2011: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networkin
14、g permitted without license from IHS-,-,-BS EN ISO 1133-2:2011EN ISO 1133-2:2011 (E) 3 Foreword This document (EN ISO 1133-2:2011) 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 NBN. Th
15、is 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 June 2012, and conflicting national standards shall be withdrawn at the latest by June 2012. Attention is drawn to the possibility that some of the el
16、ements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 1133:2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the follo
17、wing countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slova
18、kia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 1133-2:2011 has been approved by CEN as a EN ISO 1133-2:2011 without any modification. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduc
19、tion or networking permitted without license from IHS-,-,-BS EN ISO 1133-2:2011ISO 1133-2:2011(E) ISO 2011 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope 12 Normative references .23 Terms and definitions .24 Principle .25 Apparatus 25.1 Extrusion plastometer 25.2 Accessory equi
20、pment 36 Test sample .46.1 Sample form 46.2 Sample pre-treatment and storage .47 Temperature verification, cleaning and maintenance of the apparatus .57.1 Verification of the temperature-control system 57.2 Cleaning the apparatus 57.3 Vertical alignment of the instrument 58 Procedural set-up 58.1 Ge
21、neral .58.2 Selection of temperature and load .68.3 Cleaning .68.4 Selection of sample mass and charging the cylinder .69 Procedure 79.1 Selection of temperature and load .79.2 Minimum piston displacement distance .79.3 Timer device 79.4 Preparation for the test 79.5 Measurement 79.6 Expression of r
22、esults .810 Flow rate ratio (FRR) .811 Precision 812 Test report .9Annex A (informative) Verification of temperature in the cylinder 10Annex B (informative) Repeated MVR determinations on different materials carried out in line with this part of ISO 1133 14Bibliography .16Copyright European Committe
23、e for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 1133-2:2011ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodi
24、es). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and
25、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 electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Pa
26、rt 2.The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting
27、 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 held responsible for identifying any or all such patent rights.ISO 1133-2 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 5, Physica
28、l-chemical properties.ISO 1133 consists of the following parts, under the general title Plastics Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics: Part 1: Standard method Part 2: Method for materials sensitive to time-temperature history and/or moistur
29、eISO 1133-2:2011(E)iv ISO 2011 All rights reservedCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 1133-2:2011IntroductionThis part of ISO 1133 provides a method that is
30、 appropriate to those materials that exhibit a high rheological sensitivity to the time-temperature history experienced by the sample during the test and/or moisture. For such materials, ISO 1133-1, which has less-tightly specified testing conditions than this part of ISO 1133, is considered to be u
31、nsuitable for obtaining data of an acceptable level of precision (i.e. at least equivalent to that obtained by ISO 1133-1 for stable materials). This part of ISO 1133 is considered to be particularly relevant for moisture sensitive materials.The primary difference between this part of ISO 1133 and I
32、SO 1133-1 is that this part of ISO 1133 specifies tighter tolerances on the temperature, time line, sample amount and pre-treatment, resulting in more reproducible and accurate measurements.The accuracy of MVR determination of thermoplastic materials whose rheological behaviour is affected by phenom
33、ena such as hydrolysis and condensation is often significantly influenced by: moisture content and sample conditioning; sample handling; a small difference in temperature, i.e. the temperature variation in the cylinder with position and/or time; the total time that the material is exposed to the tes
34、t temperature; the sample volume; sample form (shape and size pellets, powder, flake, etc.); cleaning of the apparatus.In order to obtain accurate repeatable and reproducible results, not only does the equipment need to meet the requirements specified in this part of ISO 1133, but also the material
35、handling and test procedure need to be followed precisely and consistently, particularly with respect to those details mentioned above to which the results are sensitive. Minor deviations from the equipment requirements, procedure and/or sample handling can result in considerable loss of repeatabili
36、ty, reproducibility and accuracy of the measurement.In general, the test conditions for determination of MVR and MFR values are specified in the material standard and shall be referred to prior to conducting tests. Test conditions for the determination of MVR and MFR of materials whose rheological b
37、ehaviour is affected by hydrolysis, condensation or cross-linking during the measurement are in many cases not yet mentioned in the materials standards. Standards for these materials are likely to be revised or developed in the future. Where no relevant material standard exists or where no test cond
38、itions are specified, then the drying and test conditions should be agreed between the interested parties.NOTE At the time of publication, there is no evidence to suggest that the use of this part of ISO 1133 for stable materials results in better precision in comparison with the use of ISO 1133-1.I
39、SO 1133-2:2011(E) ISO 2011 All rights reserved vCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 1133-2:2011Copyright European Committee for Standardization Provided by
40、IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 1133-2:2011INTERNATIONAL STANDARD ISO 1133-2:2011(E)Plastics Determination of the melt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics Part 2: Method for mate
41、rials sensitive to time-temperature history and/or moistureWARNING Persons using this document should be familiar with normal laboratory practice, if applicable. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the use
42、r to establish appropriate safety and health practices and to ensure compliance with any regulatory requirements.IMPORTANT The equipment shall meet the requirements specified in this document and the measurements shall be carried out under specified conditions of temperature and load with special at
43、tention being paid to sample pre-treatment, strictly following the procedure prescribed in this document and in any applicable material standard.1 ScopeThis part of ISO 1133 specifies a procedure for the determination of the melt volume-flow rate (MVR) and melt mass-flow rate (MFR) of thermoplastic
44、materials that exhibit a high rheological sensitivity to the time-temperature history experienced by the sample during the test and/or to moisture.NOTE 1 Some grades of materials affected by hydrolysis are of, for example, poly(ethylene terephthalate) (PET), poly(butylene terephthalate) (PBT), poly(
45、ethylene naphthalate) (PEN), other polyester types and polyamides; and by cross-linking are of, for example, thermoplastic elastomers (TPE) and thermoplastic vulcanizates (TPV). It is possible that this method will also be suitable for use with other materials.It is possible that this method will no
46、t be appropriate for materials whose rheological behaviour is extremely affected during testing (see Note 2).NOTE 2 For materials where the coefficient of variation of the MFR or MVR results is found to be higher than the precision mentioned in ISO 1133-1, the viscosity number in dilute solution (IS
47、O 307, ISO 1628) can be more appropriate for characterization purposes.NOTE 3 Minor deviations from the equipment requirements, procedure and/or sample handling can result in considerable loss of reproducibility, repeatability and accuracy of the measurement. MVR results determined on different mate
48、rials, indicating the repeatability of the test method of this part of ISO 1133 when measured under ideal measurement conditions, are reported in Annex B.MFR values can be determined by calculation from MVR measurements provided the melt density at the test temperature and pressure is known, or by m
49、easurement using a cutting device provided that the accuracy of the measurement is at least the same as that of the MVR measurement.NOTE 4 The density of the melt is required at the test temperature and pressure. In practice, the pressure is low and values obtained at the test temperature and ambient pr
