1、BS ISO 1437:2017Rubber compoundingingredients Carbon black Determination of sieve residueBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 1437:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 1437:2017. It supersedes B
2、S ISO 1437:2007 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/50, Raw materials (including latex) for use in the rubber industry.A list of organizations represented on this committee can be obtained on request to its secretary.This publication d
3、oes not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017.Published by BSI Standards Limited 2017ISBN 978 0 580 92847 5 ICS 83.040.20 Compliance with a British Standard cannot confer immunity from
4、legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2017.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 1437:2017 ISO 2017Rubber compounding ingredients Carbon black Determination of
5、sieve residueIngrdients de mlange du caoutchouc Noir de carbone Dtermination du refus sur tamisINTERNATIONAL STANDARDISO1437Fifth edition2017-01Reference numberISO 1437:2017(E)BS ISO 1437:2017ISO 1437:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in Switzerla
6、ndAll rights reserved. Unless otherwise specified, no part of this publication 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 request
7、ed from either ISO at the address below or ISOs member body in the country of 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 1437:2017ISO 1437:2017(E)Foreword iv1 Scope . 12 No
8、rmative references 13 Terms and definitions . 14 Principle 15 Apparatus . 16 Procedure. 36.1 Precautions 36.2 Determination . 37 Expression of results 48 Precision and bias . 49 Test report . 4Annex A (informative) Precision and bias 5Bibliography 7 ISO 2017 All rights reserved iiiContents PageBS IS
9、O 1437:2017ISO 1437:2017(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 committees. Each member body interested
10、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 the International Electrotechnical Commi
11、ssion (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 the different types of ISO documents sh
12、ould 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 rights. ISO shall not be held responsible for i
13、dentifying 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 this document is information given for the conv
14、enience of users and does not constitute an endorsement.For an explanation on the 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
15、the following URL: www.iso.org/iso/foreword.html.This document was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 3, Raw materials (including latex) for use in the rubber industry.This fifth edition cancels and replaces the fourth edition (ISO 1437:2007), whic
16、h has been technically revised. The main changes compared to the previous edition are as follows: in the list of apparatus (see Clause 5), a rubber hose has been added in 5.1.6; Figure 1 has been revised to include a rubber hose; precision data have been moved in Annex A.iv ISO 2017 All rights reser
17、vedBS ISO 1437:2017INTERNATIONAL STANDARD ISO 1437:2017(E)Rubber compounding ingredients Carbon black Determination of sieve residueWARNING Persons using this document should be familiar with normal laboratory practice. This document does not purport to address all of the safety problems, if any, as
18、sociated 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 document specifies a method for determining the water-wash sieve residue from regular, untreated carbon black
19、for the rubber industry. It may not be applicable to oil-treated blacks because the oil could prevent proper wetting of the black by water.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this docume
20、nt. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 565, Test sieves Metal wire cloth, perforated metal plate and electroformed sheet Nominal sizes of openings3 Terms and definitionsNo
21、terms and definitions are listed in this document.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp4 PrincipleA known mass of
22、 carbon black is washed through a test sieve by a controlled flow of water, and the residue dried and weighed. The test sieve aperture is chosen from the range given in the appropriate material specification.5 Apparatus5.1 Sieving apparatus (Figure 1), comprising the following main items.5.1.1 Test
23、sieve, on which the residue is retained. Test sieves shall be of phosphor bronze or stainless steel, according to the characteristics given in ISO 565. Typical nominal apertures are 500 m, 125 m and 45 m.NOTE By mutual agreement between the interested parties, it is permissible to use sieves with a
24、different aperture size.5.1.2 Funnel or container, into the bottom of which the test sieve fits. ISO 2017 All rights reserved 1BS ISO 1437:2017ISO 1437:2017(E)5.1.3 Nozzle, fed with clean water under controlled pressure by which the carbon black is washed through the sieve.5.1.4 Water pressure regul
25、ating device.5.1.5 Filter, in the water supply line, incorporating a wire screen at least as fine as that in the test sieve.The tubing downstream of the filter shall not be liable to corrosion by tap water (use copper or stainless steel, for example).5.1.6 Rubber hose, to supply water to wash down t
26、he funnel or container sides.An example is given in Figure 1.12367811101213549Key1 valve A 8 pressure gauge2 valve B 9 nozzle3 filter 10 nozzle tip4 valve C 11 funnel5 rubber hose 12 sieve6 water pressure control valve 13 carbon black7 valve D Figure 1 Schematic diagram of sieving apparatus1)5.2 Bal
27、ance, with an accuracy of 0,1 g.5.3 Analytical balance, with an accuracy of 0,1 mg.1) Suitable apparatus includes the Gallie-Porrit type of apparatus and the one described in ASTM D1514-15. This information is given for the convenience of users of this document and does not constitute an endorsement
28、 by ISO of these products.2 ISO 2017 All rights reservedBS ISO 1437:2017ISO 1437:2017(E)5.4 Weighing dishes.5.5 Oven, gravity-convection type, capable of temperature regulation within 1 C at 125 C and temperature uniformity of 5 C.6 Procedure6.1 Precautions6.1.1 Keep the apparatus clean at all times
29、 to prevent contamination.6.1.2 Examine the sieve each time it is used to make sure no cracks or holes develop.6.1.3 Examine the wire screen in the filter periodically to ascertain if the filter screen is in good condition.6.2 Determination6.2.1 Clean the filter used in the water line before startin
30、g a test.6.2.2 Regulate the water pressure to the recommended pressure of (0,2 0,04) MPa. Attach a sieve (5.1.1) of the specified aperture to the funnel or container (5.1.2) and allow water to flow through it for 3 min. Examine the sieve for particles. If none are observed, the apparatus is ready fo
31、r use.6.2.3 Weigh, to the nearest 0,1 g, a test portion of carbon black of at least 100 g.6.2.4 Start the water flow. Carefully add carbon black to the funnel or container, taking care to prevent plugging of the sieve.A wetting agent may be used before starting the water flow.6.2.5 Wash down the car
32、bon black from the funnel or container sides with water from the rubber hose (5.1.6). Continue to wash the residue on the sieve until the wash water coming through the sieve is clear.6.2.6 Remove the sieve and rub the residue lightly with the finger to break up any agglomerates of carbon black which
33、 have not been thoroughly wetted by the water. Do not exert so much pressure with the finger that the sieve mesh is distorted.6.2.7 Replace the sieve and wash for an additional 2 min.6.2.8 Remove the sieve and dry in the oven (5.5) at 125 C for 1 h.6.2.9 Transfer the dried residue to a piece of smoo
34、th, white bond paper and rub gently to remove any carbon black remaining in the residue. Rub until the white paper no longer shows any smears.6.2.10 Transfer the residue to a tared weighing dish (5.4) and weigh to the nearest 0,1 mg. ISO 2017 All rights reserved 3BS ISO 1437:2017ISO 1437:2017(E)7 Ex
35、pression of resultsEither calculate the sieve residue, R, expressed in mg/kg (parts per million) using Formula (1):Rmm=10610 (1)Or calculate the sieve residue, R, expressed as a percentage (%) using Formula (2):Rmm=10100 (2)wherem0is the mass of the test portion, in grams (g);m1is the mass of the re
36、sidue retained on the sieve, in grams (g).8 Precision and biasSee Annex A.9 Test reportThe test report shall include the following information:a) a reference to this document, i.e. ISO 1437;b) all details necessary for the identification of the sample;c) the nominal values of the sieve apertures;d)
37、the type of apparatus used and the water pressure;e) the results and the units in which the results were expressed;f) the date of the test.4 ISO 2017 All rights reservedBS ISO 1437:2017ISO 1437:2017(E)Annex A (informative) Precision and biasA.1 PrecisionA.1.1 The precision of this test method was de
38、termined in accordance with ISO/TR 9272:2005, level 2 method. Refer to ISO/TR 9272 for terminology and other statistical details.A.1.2 The precision results give an estimate of the precision to be expected. The precision parameters are not intended to be used for acceptance/rejection testing of any
39、group of materials without documentation that they are applicable to those particular materials and the specific testing protocols that include this test method.A.1.3 A type 1 precision interlaboratory-trials programme was conducted. Both the repeatability and the reproducibility determined represen
40、t short-term testing conditions. 16 laboratories tested two carbon blacks, twice on each of two different days: one with a considerable level and one with a very high level of sieve residue. Therefore, p = 16, q = 2 and n = 4. A test result is the value obtained from a single determination. Acceptab
41、le difference values were not measured.A.1.4 The results of the precision calculations are given in Table A.1, with the materials arranged in descending order of mean sieve residue. Outliers have been removed. The number of laboratories remaining after outlier deletion is given in Table A.1.Table A.
42、1 Precision calculationsMaterialNumber of laboratoriesMean sieve residue mg/kg (ppm)Within-laboratory Between laboratoriessrr (r) sRR (R)A 13 98,6 10,14 28,69 29,09 30,10 89,85 91,11B 15 362,0 55,88 158,04 43,66 194,37 572,02 158,01Average 14 230,3Pooled values 40,16 113,58 37,10 139,08 409,44 128,9
43、7sris the within-laboratory standard deviation;r is the repeatability (in measurement units);(r) is the repeatability (in percent);sRis the between-laboratory standard deviation;R is the reproducibility (in measurement units);(R) is the reproducibility (in percent).A.1.5 The precision for the pooled
44、 values of the sieve residue may be expressed as follows.a) Repeatability: the repeatability (r) for the sieve residue has been established as 37,1 %. Two single test results (or determinations) that differ by more than 37,1 %, should be considered suspect and dictate that some appropriate investiga
45、tive action be taken.b) Reproducibility: the reproducibility (R) for the sieve residue has been established as 129,0 %. Two single test results (or determinations), produced in separate laboratories, that differ by ISO 2017 All rights reserved 5BS ISO 1437:2017ISO 1437:2017(E)more than 129,0 %, shou
46、ld be considered suspect and dictate that some appropriate investigative action be taken.A.2 BiasIn test method terminology, bias is the difference between an average test value and a reference (true) test property value. Reference values do not exist for this test method since the value of the test
47、 property is exclusively defined by the test method. Bias, therefore, cannot be determined.6 ISO 2017 All rights reservedBS ISO 1437:2017ISO 1437:2017(E)Bibliography1 ISO/TR 9272:2005, Rubber and rubber products Determination of precision for test method standards2 ASTM D 1514-15, Standard Test Meth
48、od for Carbon Black Sieve Residue ISO 2017 All rights reserved 7BS ISO 1437:2017ISO 1437:2017(E) ISO 2017 All rights reservedICS 83.040.20Price based on 7 pagesThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publicatio
49、ns, information and services.BSI is incorporated by Royal Charter. British Standards and other standardization products are published by BSI Standards Limited.British Standards Institution (BSI)About usWe bring together business, industry, government, consumers, innovators and others to shape their combined experience and expertise into standards -based solutions.The knowledge embodied in our standards has been carefully assembled in a dependable format and refined through our open consult
