1、BS EN ISO1628-1:2009ICS 83.080.01NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDPlastics Determination of theviscosity of polymersin dilute solution usingcapillary viscometersPart 1: General principles (ISO1628-1:2009)BS EN ISO 1628-1:2009 +A1:2012This British
2、Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July2009 BSI 2009ISBN 978 0 580 64902 8Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 1628-1:2009National forewordThis British Standard is the UK implementationofENISO 1628-1:2009.It
3、supersedes BS EN ISO 1628-1:1998 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PRI/21, Testing of plastics.A list of organizations represented on this committee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
4、all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN ISO 1628-1:2009+A1:2012ISBN 978 0 580 74406 8Amendments/corrigenda issued since publicationDate Comments31 July 2012 Im
5、plementation of ISO amendment 1:2012 with CEN endorsement A1:2012: Subclause 9.1, paragraph four amendedThis British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2009 The British Standards Institution 2012. Published by BSI Standards Limited 20
6、12National forewordThis British Standard is the UK implementation of EN ISO 1628-1:2009+A1:2012. It supersedes BS EN ISO 1628-1:2009 which is withdrawn.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 1628-1February 2009ICS 83.080.01 Supersedes EN ISO 1628-1:1998 English VersionPlastics - Deter
7、mination of the viscosity of polymers in dilutesolution using capillary viscometers - Part 1: General principles(ISO 1628-1:2009)Plastiques - Dtermination de la viscosit des polymresen solution dilue laide de viscosimtres capillaires -Partie 1: Principes gnraux (ISO 1628-1:2009)Kunststoffe - Bestimm
8、ung der Viskositt von Polymeren inverdnnter Lsung durch ein Kapillarviskosimeter - Teil 1:Allgemeine Grundlagen (ISO 1628-1:2009)This European Standard was approved by CEN on 12 January 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
9、giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official ve
10、rsions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium,
11、 Bulgaria, 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 United Kingdom.EUROPEAN COMMITTEE FORSTANDAR
12、DIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FRNORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 1628-1:2009: EEN ISO 1628-1:2009+A1July 2012BS EN ISO 16
13、28-1:2009EN ISO 1628-1:2009 (E)3 Foreword This document (EN ISO 1628-1:2009) has been prepared by Technical Committee ISO/TC 61 “Plastics“in collaboration with Technical Committee CEN/TC249 “Plastics” the secretariat of which is held by NBN.This European Standard shall be given the status of a natio
14、nal standard, either by publication of an identical textorbyendorsement, at the latestbyAugust 2009, and conflicting national standards shall be withdrawn at the latestbyAugust 2009.Attention is drawn to the possibilitythat some ofthe elements of this document maybethe subject of patent rights.CEN a
15、nd/or CENELEC shallnot be held responsible foridentifying anyorall such patent rights. This document supersedes EN ISO1628-1:1998.According to the CEN/CENELEC InternalRegulations, the national standardsorganizations of the followingcountriesare bound to implement this European Standard: Austria,Belg
16、ium,Bulgaria, Cyprus, CzechRepublic, 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 noticeThe t
17、extofISO 1628-1:2009 has been approved by CEN as a EN ISO 1628-1:2009 without any modification. EN ISO 1628-1:2009/A1:2012 (E) 3 Foreword This document (EN ISO 1628-1:2009/A1:2012) has been prepared by Technical Committee ISO/TC 61 “Plastics“ in collaboration with Technical Committee CEN/TC 249 “Pla
18、stics” 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 identical text or by endorsement, at the latest by January 2013, and conflicting national standards shall be withdrawn at the latest by January 2013. A
19、ttention 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 responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations
20、 of the following countries are bound to implement this European Standard: Austria, 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, N
21、etherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 1628-1:2009/Amd 1:2012 has been approved by CEN as a EN ISO 1628-1:2009/A1:2012 without any modification. BS EN ISO 1628-1:2009+A1:2012EN I
22、SO 1628-1:2009+A1:2012 (E)iiForeword to amendment A1BS EN ISO 1628-1:2009ISO 1628-1:2009(E) ISO 2009 All rightsreserved iiiContents PageForeword iv1Scope12Normative references13Definitions 14Principle55Apparatus.56Solutions.87Temperature of measurement98Procedure.99Expression of results1010 Test rep
23、ort11AnnexA (normative) Cleaning of apparatus12AnnexB(normative) Notes on sources of error13Bibliography16BS EN ISO 1628-1:2009+A1:2012EN ISO 1628-1:2009+A1:2012 (E)BS EN ISO 1628-1:2009ISO 1628-1:2009(E)iv ISO 2009 All rightsreservedForeword ISO (the International Organizationfor Standardization) i
24、s a worldwide federation of national standards bodies (ISO member bodies). The workofpreparing International Standards is normallycarriedout through ISO technical committees. Each member bodyinterestedin a subject forwhich a technical committee has beenestablished hasthe right to be represented on t
25、hat committee. International organizations, governmental and non-governmental, in liaison with ISO,also take part in the work. ISO collaborates closelywith the International Electrotechnical Commission (IEC) on all mattersofelectrotechnical standardization. International Standards aredrafted in acco
26、rdance with the rules given in the ISO/IEC Directives, Part2.The main task of technical committees is to prepare International Standards. Draft International Standardsadopted by the technical committees are circulated to the member bodies forvoting. Publication as an International Standard requiresa
27、pproval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibilitythat some ofthe elements of this document maybethe subject of patent rights.ISO shall not be held responsible for identifying anyorall such patent rights. ISO 1628-1 was prepared by Technical Committee
28、 ISO/TC61, Plastics, Subcommittee SC 5, Physical-chemical properties. This third edition cancels and replaces the second edition (ISO 1628-1:1998),ofwhich it constitutes a minorrevision intended primarilyto correct an errorin Subclause 9.1, paragraph 4 (starting:“The intrinsicviscosityshall be calcu
29、latedfrom”), where, in line 2, “intrinsic-viscosity values”has been replaced by“inherent-viscosity”values. ISO 1628 consists of the following parts, under the general title Plastics Determination of the viscosity ofpolymers in dilute solutionusing capillaryviscometers: Part1:General principles Part2
30、:Poly(vinylchloride) resins Part3:Polyethylenesand polypropylenes Part4:Polycarbonate (PC) moulding and extrusion materials Part5:Thermoplastic polyester (TP)homopolymersand copolymers Part6:Methylmethacrylate polymersBS EN ISO 1628-1:2009+A1:2012EN ISO 1628-1:2009+A1:2012 (E)BS EN ISO 1628-1:2009IN
31、TERNATIONAL STANDARD ISO 1628-1:2009(E) ISO 2009 All rightsreserved 1Plastics Determination of theviscosity ofpolymers in dilute solutionusing capillaryviscometers Part 1: General principles 1 Scope This part of ISO 1628 defines the general conditions forthe determination of the reduced viscosity, i
32、ntrinsic viscosity and K-value of organic polymers in dilute solution. It defines the standardparametersthat are applied to viscosity measurement, and can be used to develop standards formeasuring the viscosities insolutionofindividual typesofpolymer. It canalsobe used to measure and report the visc
33、osities of polymers in solution forwhich no separate standards exist. 2 NormativereferencesThe following referenced documents are indispensable forthe application of this document. Fordatedreferences, onlythe edition cited applies.For undated references, the latestedition of the referenceddocument (
34、including any amendments)applies.ISO 3105:1994, Glass capillary kinematic viscometers Specifications and operating instructionsISO 3205, Preferred testtemperaturesISO 80000-1, Quantities and units Part1: General1)ISO 80000-4, Quantities and units Part4: Mechanics3 Definitions 3.1Dimensions and units
35、 The dimensions of properties defined in this part of ISO1628 are expressed in terms of L forlength, Mformass and Tfor time in accordance with ISO80000-1, while the units appropriate to the properties are given in ISO 80000-1 and ISO 80000-4. 3.2Definitions applicableto any liquid 3.2.1 viscosityvis
36、cosity of a fluid sheared between two parallel plates, one of which moves relative to the other in uniformrectilinear motion in its ownplane, definedbythe Newton equation 1) To be published. (Revision of ISO 31-0:1992) BS EN ISO 1628-1:2009+A1:2012EN ISO 1628-1:2009+A1:2012 (E)BS EN ISO 1628-1:2009I
37、SO 1628-1:2009(E)2 ISO 2009 All rightsreserved=(1)where t is theshear stress; is theviscosity; is the velocitygradient or rate of shear, given byddzVwhere V is thevelocityofone plane relativeto the other and z the coordinate perpendicular to the two planesNOTE 1The dimensionsof viscosity are ML-1T-1
38、. NOTE 2The unitsof viscosity are Pa.s.NOTE 3For practical use, the sub-multiple 10-3Pa.s ismore convenient. NOTE 4Viscosity is usually taken to mean “Newtonian viscosity”, in which case the ratio of shearing stress to velocitygradient isconstant. In non-Newtonian behaviour, which isthe usual case w
39、ith high-polymersolutions, the ratio varieswith the shear rate. Suchratios are often called “apparent viscosities” at the correspondingshear rate. 3.2.2 viscosity/densityratiokinematic viscosityvratio defined by the equation v= (2)where r is the densityofthe fluid at the temperature at which the vis
40、cosityismeasured NOTE 1The dimensionsof kinematicviscosity are L2T-1. NOTE 2The unitsof kinematic viscosityare m2.s-1. NOTE 3For practical use, the sub-multiple 10-6m2.s-1, i.e. mm2.s-1,is more convenient. 3.3Definitions applicableto polymer solutions 3.3.1 relativeviscosityhrratio of the viscosity
41、of the polymer solution (ofstated concentration) and the viscosity of the pure solvent 0, at the same temperature: r0= (3)NOTE 1Also known as viscosity ratio.NOTE 2The ratio has no dimensions. BS EN ISO 1628-1:2009+A1:2012EN ISO 1628-1:2009+A1:2012 (E)BS EN ISO 1628-1:2009ISO 1628-1:2009(E) ISO 2009
42、 All rightsreserved 33.3.2 relativeviscosityincrementviscosity ratio minus one: 0001 =(4)NOTE 1Also known as viscosity ratio increment and specificviscosity.NOTE 2The increment has no dimensions. 3.3.3 reduced viscosityIratio of the viscosity ratio increment to the polymerconcentration c inthe solut
43、ion: 00c = (5)NOTE 1Also known as viscosity number. NOTE 2The dimensionsof reduced viscosity are L3M-1. NOTE 3The unitsof reduced viscosity are m3/kg.NOTE 4For practical use, the sub-multiple 10-3m3/kg, i.e. cm3/g, is more convenient and thecommonlyquotednumerical values for reduced viscosity (visco
44、sity number) usethese practical units. NOTE 5The reduced viscosity is usually determined at low concentration (less than 5 kg/m3, i.e. 0,005 g/cm3), exceptin the case of polymersoflow molar mass, for which higher concentrationsmay be necessary.3.3.4 inherent viscosityratio of the natural logarithmof
45、the viscosity ratio to the polymerconcentration in the solution: 0lnc(6)NOTE 1Also known as logarithmic viscosity number. NOTE 2The dimensionsand unitsare the same asthose given in 3.3.3. NOTE 3The inherent viscosity is usuallydetermined at low concentration (less than 5 kg/m3,i.e. 0,005 g/cm3), exc
46、ept in the case of polymersoflow molar mass, for which higher concentrationsmay be necessary.BS EN ISO 1628-1:2009+A1:2012EN ISO 1628-1:2009+A1:2012 (E)BS EN ISO 1628-1:2009ISO 1628-1:2009(E)4 ISO 2009 All rightsreserved3.3.5 intrinsic viscosityh limiting value of the reduced viscosity or of the inh
47、erent viscosity at infinite dilution: 000lim0lnlim0cccc =(7)NOTE 1Also known as limiting viscosity number. NOTE 2The dimensionsand unitsare the same asthose given in 3.3.3. NOTE 3The effectof the shear rate on the functions defined in 3.3.1 to 3.3.5 has been neglected, since thiseffectisusually negl
48、igible for values of the reduced viscosity, inherent viscosity and intrinsic viscosity less than 0,5 m3/kg,i.e. 500 cm3/g. Strictly speaking, allthese functions should be defined at the limiting (preferably infinitely small) value ofthe shear rate. 3.3.6 K-valueconstant, independent of the concentra
49、tion of the polymer solution and peculiarto the polymersample, which is a measure of the average degree of polymerization:K-value = 1 000k (8)NOTE 1According to H. Fikentscher2, k is calculated as follows: 2r75lg 1001150kkckc = +and therefore rrr21, 5lg1121, 5lg1,5lg150 300ckc+ +=+(9) where r0= = the viscosity ratio (see 3.3.1); c is the concentration, in 103kg/m3, i.e. g/cm3. NOTE 2Alimitingviscosity number kcan be calculated f
