1、Plastics - Determination of thermal conductivity and thermal diffusivityPart 4: Laser flash methodBS EN ISO 22007-4:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 22007-4 August 2017 ICS 83.080.01 Supersed
2、es EN ISO 22007-4:2012English Version Plastics - Determination of thermal conductivity and thermal diffusivity - Part 4: Laser flash method (ISO 22007-4:2017) Plastiques - Dtermination de la conductivit thermique et de la diffusivit thermique - Partie 4: Mthode flash laser (ISO 22007-4:2017) Kunstst
3、offe - Bestimmung der Wrmeleitfhigkeit und der Temperaturleitfhigkeit - Teil 4: Laserblitzverfahren (ISO 22007-4:2017) This European Standard was approved by CEN on 17 June 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
4、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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official ver
5、sions (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 CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria
6、, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain,
7、Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide fo
8、r CEN national Members. Ref. No. EN ISO 22007-4:2017 ENational forewordThis British Standard is the UK implementation of EN ISO 22007-4:2017. It is identical to ISO 22007-4:2017. It supersedes BS EN ISO 22007-4:2012, which is withdrawn.The UK participation in its preparation was entrusted to Technic
9、al Committee PRI/21, Testing of plastics.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 Standards
10、 Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 93277 9ICS 83.080.01Compliance 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 30 September 2017.Am
11、endments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 22007-4:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 22007-4 August 2017 ICS 83.080.01 Supersedes EN ISO 22007-4:2012English Version Plastics - Determination of thermal conductivity and thermal di
12、ffusivity - Part 4: Laser flash method (ISO 22007-4:2017) Plastiques - Dtermination de la conductivit thermique et de la diffusivit thermique - Partie 4: Mthode flash laser (ISO 22007-4:2017) Kunststoffe - Bestimmung der Wrmeleitfhigkeit und der Temperaturleitfhigkeit - Teil 4: Laserblitzverfahren (
13、ISO 22007-4:2017) This European Standard was approved by CEN on 17 June 2017. 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 bibl
14、iographical 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 any other language made by translation under the respon
15、sibility 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 Republic, Denmark, Estonia, Finland, Former Yugoslav Repu
16、blic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN
17、DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 22007-4:2017 EBS EN ISO 22007-4:2017EN ISO 22007-4:2017 (E) 3
18、 European foreword This document (EN ISO 22007-4:2017) 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, eithe
19、r by publication of an identical text or by endorsement, at the latest by February 2018, and conflicting national standards shall be withdrawn at the latest by February 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN sha
20、ll not be held responsible for identifying any or all such patent rights. This document supersedes EN 22007-4:2012. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulg
21、aria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzer
22、land, Turkey and the United Kingdom. Endorsement notice The text of ISO 22007-4:2017 has been approved by CEN as EN ISO 22007-4:2017 without any modification. ISO 22007-4:2017(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Principle 25 Apparatus . 26 Test specimen 56.1
23、Shape and dimension of the specimen . 56.2 Preparation and conditioning of test specimen . 56.3 Coating the specimen 57 Calibration and verification 67.1 Calibration of apparatus . 67.2 Verification of apparatus 68 Procedure. 69 Data analysis . 810 Uncertainty . 911 Test report . 9Annex A (informati
24、ve) Correction for finite pulse duration .11Annex B (informative) Alternative methods of calculating thermal diffusivity .12Annex C (normative) Samples and test specimen preparation for injection mouldable thermoplastics and thermosets .13Bibliography .17 ISO 2017 All rights reserved iiiContents Pag
25、eBS EN ISO 22007-4:2017ISO 22007-4:2017(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Principle 25 Apparatus . 26 Test specimen 56.1 Shape and dimension of the specimen . 56.2 Preparation and conditioning of test specimen . 56.3 Coating the specimen 57 Calibration and
26、verification 67.1 Calibration of apparatus . 67.2 Verification of apparatus 68 Procedure. 69 Data analysis . 810 Uncertainty . 911 Test report . 9Annex A (informative) Correction for finite pulse duration .11Annex B (informative) Alternative methods of calculating thermal diffusivity .12Annex C (nor
27、mative) Samples and test specimen preparation for injection mouldable thermoplastics and thermosets .13Bibliography .17 ISO 2017 All rights reserved iiiContents PageBS EN ISO 22007-4:2017ISO 22007-4:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of
28、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 technical committee has been established has the right to be represented on that committee. Inte
29、rnational 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 electrotechnical standardization.The procedures used to develop this document and those int
30、ended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see ww
31、w .iso .org/ directives).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. Details of any patent rights identified during the development of the docume
32、nt will be in the Introduction and/or on the ISO list of patent declarations received (see www .iso .org/ patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, th
33、e meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This document was prepared
34、 by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 5, Physical-chemical properties.This second edition cancels and replaces the first edition (ISO 22007-4:2008), Annex C of which has been technically revised.A list of all parts in the ISO 22007 series can be found on the ISO website.iv ISO
35、 2017 All rights reservedBS EN ISO 22007-4:2017ISO 22007-4:2017(E)ForewordISO (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 c
36、ommittees. 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 closely with t
37、he International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for
38、the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent right
39、s. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www .iso .org/ patents).Any trade name used in th
40、is document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World T
41、rade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 5, Physical-chemical properties.This second edition cancels and replaces the fi
42、rst edition (ISO 22007-4:2008), Annex C of which has been technically revised.A list of all parts in the ISO 22007 series can be found on the ISO website.iv ISO 2017 All rights reserved INTERNATIONAL STANDARD ISO 22007-4:2017(E)Plastics Determination of thermal conductivity and thermal diffusivity P
43、art 4: Laser flash method1 ScopeThis document specifies a method for the determination of the thermal diffusivity of a thin solid disc of plastics in the thickness direction by the laser flash method. This method is based upon the measurement of the temperature rise at the rear face of the thin-disc
44、 specimen produced by a short energy pulse on the front face.The method can be used for homogeneous solid plastics as well as composites having an isotropic or orthotropic structure. In general, it covers materials having a thermal diffusivity, , in the range 1 107m2s1m1 0,27: F(m1) = 0,085 48 0,314
45、 (0,548 6 m1) + 0,500 (0,548 6 m1)2,63(5)For m1 0,44: F(m1) = 0,081 9 + 0,305 m1(6)NOTE 2 Values of m1less than 0,27 do not have any physical significance.8 ISO 2017 All rights reservedBS EN ISO 22007-4:2017ISO 22007-4:2017(E)9 Data analysisThe analysis of the rear-face temperature curve and the cal
46、culation of the thermal diffusivity shall be carried out as follows.a) If the half-rise time, t1/2, is shorter than 100 times the pulse width, correct the time scale for the finite pulse time effect (for guidance, see Annex A).b) Determine the baseline and the maximum of the curve to calculate the m
47、aximum temperature rise, Tmax. If the baseline shows a drift, correct the thermogram by subtracting the extrapolated baseline.c) Normalize the rear-face temperature rise curve by dividing all temperature rise values by Tmax.d) Calculate the thermal diffusivity from the normalized thermogram, using t
48、he partial time moments method5described below, or any other suitable method, as well as the thickness, d, corrected for thermal expansion.The “partial time moments” method recommended in this document has a low sensitivity to measurement noise. It uses only the rising part of the thermogram, which
49、is highly sensitive to thermal diffusivity. Other methods may be used as long as their uncertainties are calculated. Annex B gives examples of such methods of calculation.NOTE 1 Additional information on calculation methods, data analysis and sources of error can be found in ISO 187551. Since ISO 18755 refers to ceramics, not all the details presented therein are necessarily relevant to the testing of plastics.In the partial time moments method, the thermal diffusivity is given by Formula (2): =dFmm
