BS-ISO-16014-1-2003.pdf
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1、BRITISH STANDARD BS ISO 16014-1:2003 Incorporating corrigendum no. 1 Plastics Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography Part 1: General principles ICS 83.080.01 ? Licensed Copy: London South Bank University, London South B
2、ank University, Mon May 07 12:05:07 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS ISO 16014-1:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 12 May 2003 BSI 2007 ISBN 0 580 41832 4 National foreword This British Standard was published b
3、y BSI. It is the UK implementation of ISO 16014-1:2003, incorporating corrigendum September 2005. The UK participation in its preparation was entrusted to Technical Committee PRI/21, Plastics test methods. A list of organizations represented on PRI/21 can be obtained on request to its secretary. Thi
4、s publication does not purport to include 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. Amendments issued since publication Amd. No. DateComments 17071 Corrigendum No. 1
5、 30 April 2007Correction to Subclause 6.5.3 and Figure 4a) Licensed Copy: London South Bank University, London South Bank University, Mon May 07 12:05:07 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Reference number ISO 16014-1:2003(E) INTERNATIONAL ADNATSDR ISO 141061- tide tsriFino -300251-30 Plasti
6、cs Determination of average molecular mass and molecular mass distribution of polymers using size- exclusion chromatography Part 1: General principles Plastiques Dtermination de la masse molculaire moyenne et de la rpartition des masses molculaires des polymres par chromatographie dexclusion strique
7、 Partie 1: Principes gnraux Referecne unbmer OSI -4106102:1)E(30 INTERNATIONAL STANDARD ISO 16014-1 First edition 2003-03-15 scitsalP eteDtanimroifo n avegare celomussam ral elom dnassam raluc birtsiduitp fo noolyisu sremgn size- isulcxec nohortamargophy :1 traP reneGairp lnlpicse salPtiuqse D retma
8、nitoied n al samse molcualrie yomnnete e ed al rraptition sed samses omlcualrise sed poylmres apr crhotamorghpaei xedclsuios ntrqi eu raPti:1 e rPicnipse ngruax BS ISO 160141:2003 Licensed Copy: London South Bank University, London South Bank University, Mon May 07 12:05:07 GMT+00:00 2007, Uncontrol
9、led Copy, (c) BSI IS-41061 O1:(3002E) ii Licensed Copy: London South Bank University, London South Bank University, Mon May 07 12:05:07 GMT+00:00 2007, Uncontrolled Copy, (c) BSI IS-41061 O1:(3002E) iii Contents Page Forewordiv 1 Scope1 2 Normative references .1 3 Terms and definitions.1 4 Principle
10、.2 5 Reagents3 6 Apparatus.4 7 Procedure.8 8 Data acquisition and processing.8 9 Expression of results10 10 Precision13 11 Test report13 Annex A (informative) Supplementary information.15 Annex B (informative) Narrow molecular mass distribution standards16 BS ISO 160141:2003 Licensed Copy: London So
11、uth Bank University, London South Bank University, Mon May 07 12:05:07 GMT+00:00 2007, Uncontrolled Copy, (c) BSI IS-41061 O1:(3002E) iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing
12、 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 non-governmental, in liais
13、on 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, Part 2. The main task of te
14、chnical 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 a vote. Attention is dr
15、awn 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 16014-1 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 5, Physical- chemical propertie
16、s. ISO 16014 consists of the following parts, under the general title Plastics Determination of average molecular mass and molecular mass distribution of polymers using size-exclusion chromatography: Part 1: General principles Part 2: Universal calibration method Part 3: Low-temperature method Part
17、4: High-temperature method BS ISO 160141:2003 Licensed Copy: London South Bank University, London South Bank University, Mon May 07 12:05:07 GMT+00:00 2007, Uncontrolled Copy, (c) BSI INTENRATIONAL TSANDADR IS-41061 O1:(3002E) 1 Plastics Determination of average molecular mass and molecular mass dis
18、tribution of polymers using size-exclusion chromatography Part 1: General principles 1 Scope This part of ISO 16014 specifies a general method for determining the average molecular mass and the molecular mass distribution of polymers using size-exclusion chromatography (SEC). The average molecular m
19、ass and the molecular mass distribution are calculated from a calibration curve constructed using polymer standards. Therefore this method is classified as a relative method (see Clause A.1 in Annex A). 2 Normative references The following referenced documents are indispensable for the application o
20、f 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 472, Plastics Vocabulary 3 Terms and definitions For the purposes of this document, the terms and definitions given in
21、ISO 472 and the following apply. 3.1 size-exclusion chromatography SEC a liquid chromatographic technique in which the separation is based on the hydrodynamic volume of molecules eluting in a column packed with porous non-adsorbing material having pore dimensions that are similar in size to the mole
22、cules being separated NOTE The term gel permeation chromatography (GPC) should only be used where the porous non-adsorbing packing material is a gel; however, the term size-exclusion chromatography (SEC) is preferred. 3.2 molecular mass M sum of the masses of the atoms making up a molecule NOTE Mole
23、cular weight is also used for molecular mass. BS ISO 160141:2003 Licensed Copy: London South Bank University, London South Bank University, Mon May 07 12:05:07 GMT+00:00 2007, Uncontrolled Copy, (c) BSI IS-41061 O1:(3002E) 2 3.3 Average molecular mass Four types of average molecular mass are defined
24、 by the following equations, where Ni is the number of molecules of species i of molecular mass Mi and a is the exponent of the Mark-Houwink-Sakurada equation. 3.3.1 number-average molecular mass Mn 1 n 1 () ii i i i NM M N = = = (1) 3.3.2 mass-average molecular mass Mw 2 1 w 1 () () ii i ii i NM M
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