1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 1133-1:2011Plastics Determination of themelt mass-flow rate (MFR) andmelt volume-flow rate (MVR)of thermoplasticsPart 1: Standard method (ISO 1133-1:2011)BS EN ISO 1133
2、-1:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 1133-1:2011. Together with BS EN ISO 1133-2:2011, it supersedes BS EN ISO 1133:2005, which is withdrawn.The UK participation in its preparation was entrusted to T e c h n i c a l C o m m i t t e e P R I
3、 / 2 1 , T e s t i n g o f p l a s t i c s .A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standa
4、rds Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 63354 6 ICS 83.080.20 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2012.Ame
5、ndments issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1133-1 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 thermoplasti
6、cs - Part 1: Standard method (ISO 1133-1:2011) Plastiques - Dtermination de lindice de fluidit chaud des thermoplastiques, en masse (MFR) et en volume (MVR) - Partie 1: Mthode normale (ISO 1133-1:2011) Kunststoffe - Bestimmung der Schmelze-Masseflierate (MFR) und der Schmelze-Volumenflierate (MVR) v
7、on Thermoplasten - Teil 1: Allgemeines Prfverfahren (ISO 1133-1:2011) This 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 st
8、andard without any alteration. Up-to-date lists and bibliographical references 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
9、 any other language made by translation under the responsibility of a CEN 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 R
10、epublic, Denmark, Estonia, Finland, France, Germany, Greece, 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
11、 DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue 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 1133-1:2011: EBS EN ISO 1133-1:2011 EN ISO 1133-1:2011 (E) 3 Foreword Th
12、is document (EN ISO 1133-1:2011) 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. This European Standard shall be given the status of a national standard, either by publication of an
13、 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 elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held
14、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 following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
15、 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 and the United Kingdom. Endorsement notice The text of I
16、SO 1133-1:2011 has been approved by CEN as a EN ISO 1133-1:2011 without any modification. BS EN ISO 1133-1:2011ISO 1133-1:2011(E) ISO 2011 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope 12 Normative references .13 Terms and definitions .14 Principle .25 Apparatus 35.1 Extrusion
17、 plastometer 35.2 Accessory equipment 76 Test sample .86.1 Sample form 86.2 Conditioning .87 Temperature verification, cleaning and maintenance of the apparatus .97.1 Verification of the temperature control system .97.2 Cleaning the apparatus 107.3 Vertical alignment of the instrument 108 Procedure
18、A: mass-measurement method .108.1 Selection of temperature and load .108.2 Cleaning .108.3 Selection of sample mass and charging the cylinder .108.4 Measurements 118.5 Expression of results .129 Procedure B: displacement-measurement method .139.1 Selection of temperature and load .139.2 Cleaning .13
19、9.3 Minimum piston displacement distance .139.4 Selection of sample mass and charging the cylinder .139.5 Measurements 139.6 Expression of results .1410 Flow rate ratio .1511 Precision 1612 Test report .16Annex A (normative) Test conditions for MFR and MVR determinations 18Annex B (informative) Cond
20、itions specified in International Standards for the determination of the melt flow rate of thermoplastic materials .19Annex C (informative) Device and procedure for preforming a compacted charge of material by compression .20Annex D (informative) Precision data for polypropylene obtained from an int
21、ercomparison of MFR and MVR testing .23Bibliography .24BS EN ISO 1133-1:2011ForewordISO (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 t
22、echnical 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 non-governmental, in liaison with ISO, also take part in the work. ISO collaborates clos
23、ely 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, Part 2.The main task of technical committees is to prepare International Standards. Draft
24、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 a vote.Attention is drawn to the possibility that some of the elements of this document
25、 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 1133-1 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 5, Physical-chemical properties.This first edition of ISO 1133-1 cancels and replaces ISO 1133:200
26、5. It also incorporates the Technical Corrigendum, ISO 1133:2005/Cor.1:2006.In this part of ISO 1133, changes have been made to accommodate ISO 1133-2. In addition: Clause 3 includes further definitions relevant to both parts of ISO 1133; 5.1.3 specifies the lower edge of the piston head; 5.1.4 upda
27、tes temperature tolerances; 5.2.1.7 on a preforming device has been added; 5.2.2.2 includes revised cut-off timing accuracy; 8.3 provides cut-off time intervals that are consistent with other specifications in this part of ISO 1133; 8.5.3 and 9.6.3 have been included on expression of half die result
28、s; 9.3 provides minimum piston displacements that are consistent with other specifications in this part of ISO 1133; Annex B has been simplified to avoid inconsistencies between this and the materials specification standards; Annex C, has been added for the preparation of charges of material that is
29、 particularly suited to testing flake or other large aspect ratio particles; Annex D has been added to provide precision data from an intercomparison on a high MVR/MFR material.This part of ISO 1133 applies to melt flow rate testing broadly equivalent to that of ISO 1133:2005. ISO 1133-2 applies to
30、the testing of polymers that are rheologically sensitive to the time-temperature history to which they are subjected during melt flow rate testing.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)
31、 of thermoplastics: Part 1: Standard method Part 2: Method for materials sensitive to time-temperature history and/or moistureISO 1133-1:2011(E)iv ISO 2011 All rights reservedBS EN ISO 1133-1:2011IntroductionFor stable materials that are not rheologically sensitive to the time-temperature history ex
32、perienced during melt flow rate testing, this part of ISO 1133 is recommended.For materials whose rheological behaviour is sensitive to the tests time-temperature history, e.g. materials which degrade during the test, ISO 1133-2 is recommended.NOTE At the time of publication, there is no evidence to
33、 suggest that the use of ISO 1133-2 for stable materials results in better precision in comparison with the use of this part of ISO 1133.ISO 1133-1:2011(E) ISO 2011 All rights reserved vBS EN ISO 1133-1:2011BS EN ISO 1133-1:2011INTERNATIONAL STANDARD ISO 1133-1:2011(E)Plastics Determination of the m
34、elt mass-flow rate (MFR) and melt volume-flow rate (MVR) of thermoplastics Part 1:Standard methodWARNING 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 us
35、e. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any regulatory requirements.1 ScopeThis part of ISO 1133 specifies two procedures for the determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of t
36、hermoplastic materials under specified conditions of temperature and load. Procedure A is a mass-measurement method. Procedure B is a displacement-measurement method. Normally, the test conditions for measurement of melt flow rate are specified in the material standard with a reference to this part
37、of ISO 1133. The test conditions normally used for thermoplastics are listed in Annex A.The MVR is particularly useful when comparing materials of different filler content and when comparing filled with unfilled thermoplastics. The MFR can be determined from MVR measurements, or vice versa, provided
38、 the melt density at the test temperature is known.This part of ISO 1133 is also possibly applicable to thermoplastics for which the rheological behaviour is affected during the measurement by phenomena such as hydrolysis (chain scission), condensation and cross-linking, but only if the effect is li
39、mited in extent and only if the repeatability and reproducibility are within an acceptable range. For materials which show significantly affected rheological behaviour during testing, this part of ISO 1133 is not appropriate. In such cases, ISO 1133-2 applies.NOTE The rates of shear in these methods
40、 are much smaller than those used under normal conditions of processing, and therefore it is possible that data obtained by these methods for various thermoplastics will not always correlate with their behaviour during processing. Both methods are used primarily in quality control.2 Normative refere
41、ncesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 1133-2, Plastics Determination of the melt
42、 mass-flow rate (MFR) and melt volume-rate (MVR) of thermoplastics Part 2: Method for materials sensitive to time-temperature history and/or moistureISO 4287, Geometrical Product Specifications (GPS) Surface texture: Profile method Terms, definitions and surface texture parametersISO 6507-1, Metalli
43、c materials Vickers hardness test Part 1: Test method3 Terms and definitionsFor the purpose of this document, the following terms and definitions apply. ISO 2011 All rights reserved 1BS EN ISO 1133-1:20113.1melt mass-flow rateMFRrate of extrusion of a molten resin through a die of specified length a
44、nd diameter under prescribed conditions of temperature, load and piston position in the cylinder of an extrusion plastometer, the rate being determined as the mass extruded over a specified timeNOTE MFR is expressed in units of grams per 10 min. Alternative units accepted by SI are decigrams per min
45、ute, where 1 g/10 min is equivalent to 1 dg/min.3.2melt volume-flow rateMVRrate of extrusion of a molten resin through a die of specified length and diameter under prescribed conditions of temperature, load and piston position in the cylinder of an extrusion plastometer, the rate being determined as
46、 the volume extruded over a specified timeNOTE MVR is expressed in units of cubic centimetres per 10 min.3.3loadcombined force exerted by the mass of the piston and the added weight, or weights, as specified by the conditions of the testNOTE Load is expressed as the mass, in kilograms, exerting it.3
47、.4preformed compacted chargetest sample prepared as a compressed charge of polymer sampleNOTE In order to introduce samples quickly into the bore of the cylinder and to ensure void-free extrudate, it may be necessary to preform samples originally in the form of, for example, powders or flakes into a
48、 compacted charge.3.5time-temperature historyhistory of the temperature and time to which the sample is exposed during testing including sample preparation3.6standard diedie having a nominal length of 8,000 mm and a nominal bore diameter of 2,095 mm3.7half size diedie having a nominal length of 4,00
49、0 mm and a nominal bore diameter of 1,050 mm3.8moisture-sensitive plasticsplastics having rheological properties that are sensitive to their moisture contentNOTE Plastics which, when containing absorbed water and heated above their glass transition temperatures (for amorphous plastics) or melting point (for semi-crystalline plastics), undergo hydrolysis resulting in a reduction in molar mass and consequently a reduction in melt viscosity and an increase in MFR and MVR.4 PrincipleThe melt mass-flow rate (MFR) and the melt volume-flow rat
