1、BSI Standards PublicationBS ISO 289-3:2015Rubber, unvulcanized Determinations using ashearing-disc viscometerPart 3: Determination of the Delta Mooneyvalue for non-pigmented, oil-extendedemulsion-polymerized SBRBS ISO 289-3:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implem
2、entation of ISO 289-3:2015. Itsupersedes BS 903-A58.1:2001 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/22, Testing and analysis of rubber.A list of organizations represented on this committee can beobtained on request to its secretary.This publi
3、cation does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 89164 9ICS 83.060Compliance with a British Standard cannot confer immunity from
4、legal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 December 2015.Amendments issued since publicationDate Text affectedBS ISO 289-3:2015 ISO 2015Rubber, unvulcanized Determinations using a shearing-disc viscometer Part 3: Dete
5、rmination of the Delta Mooney value for non-pigmented, oil-extended emulsion-polymerized SBRCaoutchouc non vulcanis Dterminations utilisant un consistomtre disque de cisaillement Partie 3: Dtermination de la valeur Delta Mooney pour le caoutchouc styrne-butadine polymris en mulsion, tendu lhuile, no
6、n pigmentINTERNATIONAL STANDARDISO289-3Second edition2015-10-15Reference numberISO 289-3:2015(E)BS ISO 289-3:2015ISO 289-3:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication
7、 may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of
8、the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 289-3:2015ISO 289-3:2015(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Principles .
9、25 Apparatus . 26 Calibration 27 Preparation of test piece 28 Test temperature 39 Procedure. 310 Calculation and expression of results . 311 Test report . 3 ISO 2015 All rights reserved iiiContents PageBS ISO 289-3:2015ISO 289-3:2015(E)ForewordISO (the International Organization for Standardization)
10、 is a worldwide federation of 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 repre
11、sented on that committee. International 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 devel
12、op 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 the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/
13、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 rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during th
14、e 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 this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning o
15、f ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information.The committee responsible for this document is ISO/TC45, Rubbe
16、r and rubber products, Subcommittee SC 2, Testing and analysis.This second edition cancels and replaces the first edition (ISO 289-3:1999), which has been technically revised to update normative references and to provide a reference to the latest calibration information.ISO 289 consists of the follo
17、wing parts, under the general title Rubber, unvulcanized Determinations using a shearing-disc viscometer: Part 1: Determination of Mooney viscosity Part 2: Determination of pre-vulcanization characteristics Part 3: Determination of the Delta Mooney value for non-pigmented, oil-extended emulsion-poly
18、merized SBR Part 4: Determination of the Mooney stress-relaxation rateiv ISO 2015 All rights reservedBS ISO 289-3:2015ISO 289-3:2015(E)IntroductionThe Delta Mooney value provides a means of predicting the behaviour or processibility of rubber during the primary stages of mixing, extruding, and calen
19、dering. It is usually associated with non-pigmented, oil-extended emulsion styrene-butadiene rubber, but it can be of use in providing information about the behaviour of other types. In the latter case, however, the conditions of test specified in this part of ISO 289 might not be suitable. ISO 2015
20、 All rights reserved vBS ISO 289-3:2015BS ISO 289-3:2015Rubber, unvulcanized Determinations using a shearing-disc viscometer Part 3: Determination of the Delta Mooney value for non-pigmented, oil-extended emulsion-polymerized SBRWARNING Persons using this part of ISO 289 should be familiar with norm
21、al laboratory practice. This part of ISO 289 does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions.1 ScopeThis
22、 part of ISO 289 specifies a method for determining the Delta Mooney value of non-pigmented, oil-extended emulsion-polymerized styrene-butadiene rubber.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its applic
23、ation. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 289-1, Rubber, unvulcanised Determinations using a shearing-disc viscometer Part 1: Determination of Mooney viscosityISO 1795, Rub
24、ber, raw natural and raw synthetic Sampling and further preparative procedures3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1Delta Mooney A valuesNOTE A “massed test sample” is referred to as a “homogenized test sample” in ISO 1795. Similarly,
25、an “unmassed test sample” can be described as an “unhomogenized test sample”.3.1.1A1 valuedifference between the Mooney viscosities of an unmassed test sample recorded at 15 min and 1 min, i.e. ML(1+15) ML(1+1)3.1.2A2 valuedifference between the Mooney viscosities of an unmassed test sample recorded
26、 at 7 min and 1 min, i.e. ML(1+7) ML(1+1)3.1.3A3 valuedifference between the Mooney viscosities of a massed test sample recorded at 15 min and 1,5 min, i.e. ML(1+15) ML(1+1,5)INTERNATIONAL STANDARD ISO 289-3:2015(E) ISO 2015 All rights reserved 1BS ISO 289-3:2015ISO 289-3:2015(E)3.2Delta Mooney B va
27、luedifference between the minimum Mooney viscosity soon after starting the rotor and the subsequent maximum Mooney viscosity for an unmassed test sampleNote 1 to entry: The values are complementary and any combination may be used to assist in distinguishing those rubbers that are easy to process fro
28、m those that process with significantly greater difficulty.4 PrinciplesThe test consists of determining the difference between the Mooney viscosity values at two specified times (Delta Mooney A) or at two specified points on the curve of Mooney viscosity against time (Delta Mooney B), see Figure 1.K
29、eyX time, minY Mooney viscosityaRotor started.Figure 1 Mooney viscosity plot5 ApparatusThe test apparatus shall be as specified in ISO 289-1.6 CalibrationThe test apparatus shall be calibrated according to ISO 289-1.7 Preparation of test pieceEnsure that the unmassed test sample is free from entrapp
30、ed air and that the surface is smooth and regular, thereby avoiding air entrapment between the test piece and the rotor or die surfaces. This may be achieved by compacting the test sample in a mould for 5 min at 23 C 2 C, followed by a relaxation period of 15 min.The massed (“homogenized”) test samp
31、le shall be prepared according to ISO 1795.2 ISO 2015 All rights reservedBS ISO 289-3:2015ISO 289-3:2015(E)The test piece shall be prepared from the test sample according to ISO 289-1.8 Test temperatureThe test temperature shall be 100 C 0,5 C, this being the temperature of the closed dies with the
32、rotor in place and the cavity empty.9 ProcedureThe test shall be conducted according to the procedure described in ISO 289-1, using the large rotor, a preheating time of 1 min and a running time of either 7 min or 15 min.If the viscosity has not been recorded continuously, plot the observed Mooney v
33、iscosity values as specified in ISO 289-1.NOTE An automatic recorder is strongly recommended.10 Calculation and expression of resultsThe Delta Mooney A1 value shall be determined as the difference between the Mooney viscosities recorded at running times of 15 min and 1 min.The Delta Mooney A2 value
34、shall be determined as the difference between the Mooney viscosities recorded at running times of 7 min and 1 min.The Delta Mooney A3 value shall be determined as the difference between the Mooney viscosities recorded at running times of 15 min and 1,5 min.The Delta Mooney B value shall be determine
35、d as the difference between the minimum and maximum Mooney viscosities (see Figure 1).NOTE For Delta Mooney A, lower (in most cases, more negative) values are indicative of easier-processing rubbers. For Delta Mooney B, lower values also indicate easier processing.11 Test reportThe test report shall
36、 include the following information:a) all details necessary for complete identification of the rubber tested, including whether the test sample was compacted or not;b) full reference to the test method used, reference to this part of ISO 289 (i.e. ISO 2893);c) test detail:1) model of viscometer used
37、 and name of the manufacturer;2) details of any procedures not specified in this part of ISO 289;3) details of any procedure not included in this part of ISO 289, as well as any operation regarded as optional;d) test results:1) Delta Mooney A1, A2, A3 and/or B value;e) date(s) of the test. ISO 2015
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