BS ISO 2190-2016 Granulated cork Determination of moisture content《软木屑 水分含量的测定》.pdf

1、BS ISO 2190:2016Granulated cork Determination of moisturecontentBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 2190:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 2190:2016.The UK participation in its preparation w

2、as entrusted to Technical Committee PRI/81, Cork.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 S

3、tandards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 91830 8 ICS 79.100 Compliance 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 2

4、016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 2190:2016 ISO 2016Granulated cork Determination of moisture contentGranuls de lige Dtermination de lhumiditINTERNATIONAL STANDARDISO2190Fourth edition2016-10-01Reference numberISO 2190:2016(E)BS ISO 2190:2016ISO 219

5、0:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll 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, o

6、r 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 the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax

7、+41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 2190:2016ISO 2190:2016(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Principle 15 Apparatus . 16 Sampling 27 Procedure. 27.1 Test sample . 27.2 Determination . 28 Results . 28.1 Calculation 28.2 Expression of results 29

8、 Test report . 3Bibliography 4 ISO 2016 All rights reserved iiiContents PageBS ISO 2190:2016ISO 2190:2016(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 no

9、rmally 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 liaison with ISO, also take part in

10、 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 intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular t

11、he 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 www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this docu

12、ment 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 document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.or

13、g/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 of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World

14、Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html .The committee responsible for this document is ISO/TC 87, Cork.This fourth edition cancels and replaces the third edition (ISO 2190:1998), of which it constitutes a mino

15、r revision. Minor editorial details have been introduced in this edition (see French title and Clause 3 and 5.3).iv ISO 2016 All rights reservedBS ISO 2190:2016INTERNATIONAL STANDARD ISO 2190:2016(E)Granulated cork Determination of moisture content1 ScopeThis document specifies the reference method

16、for determination of the moisture content of granulated cork.NOTE For the purposes of factory control, the manufacturer can choose another test method and/or different equipment. In this case, it is important to establish the co-relation between that method (current method) and the reference method.

17、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 document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including

18、any amendments) applies.ISO 2067, Granulated cork Sampling3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 633 and the following apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: ISO Online brows

19、ing platform: available at http:/www.iso.org/obp IEC Electropedia: available at http:/www.electropedia.org/3.1moisture contentloss of mass of a test specimen after drying under specific conditions, compared to the initial mass of the test specimen4 PrincipleWeighing, drying and reweighing of a test

20、specimen; the loss of mass calculated is the moisture content.5 ApparatusOrdinary laboratory equipment and, in particular, the following.5.1 Balance, with a resolution of 0,01 g.5.2 Oven, ventilated, and maintained at (103 2) C.5.3 Open containers (dry), of such dimensions that allow the test specim

21、en to be about 50 mm high.To dry the containers, put them in the oven at 103 C for 30 min. Then put the containers in the desiccator for 30 min. ISO 2016 All rights reserved 1BS ISO 2190:2016ISO 2190:2016(E)5.4 Desiccators, of adequate capacity to hold the containers, and containing an efficient des

22、iccant (e.g. silica gel).6 SamplingCarry out the sampling in accordance with the procedure specified in ISO 2067.7 Procedure7.1 Test sampleFrom the laboratory sample (see ISO 2067), take at random three test specimens of about 50 g each.7.2 DeterminationDetermine the mass of each container (5.3) to

23、the nearest 0,1 g (m1).Place each test specimen in a container, distributing it in such a way that its surface is horizontal and the test specimen is about 50 mm high.Determine the mass of each set (m2), to the nearest 0,1 g. Put the sets in the oven (5.2) set at 103 C, for at least 1 h. Then place

24、them in the desiccator and let them cool for at least 30 min. Then determine the mass of each set.Repeat the procedure described above until constant mass (i.e. until two consecutive weighings of each set do not differ by more than 0,5 g) (m3).To accelerate the test, it is advisable that the first d

25、rying be for at least 3 h.8 Results8.1 CalculationThe moisture content of each test specimen referred to in the initial mass (before drying) and expressed as a percentage, rounded off to the nearest integer, is given by the formula:mmmm2321100 wherem1is the mass, in grams, rounded off to the nearest

26、 0,1 of the container;m2is the mass, in grams, rounded off to the nearest 0,1 of the container and test specimen (set) before drying;m3is the mass, in grams, rounded off to the nearest 0,1 of the container and test specimen (set) after drying.8.2 Expression of resultsTake as the moisture content of

27、the granulated cork the average, rounded off to the nearest integer, of the results obtained for each test specimen.2 ISO 2016 All rights reservedBS ISO 2190:2016ISO 2190:2016(E)9 Test reportThe test report shall include the following particulars:a) all details required to identify the sample;b) the

28、 result obtained, in accordance with Clause 8;c) reference to this document;d) all operating details not specified in this document, or regarded as optional;e) details of any incidents which may have influenced the results. ISO 2016 All rights reserved 3BS ISO 2190:2016ISO 2190:2016(E)Bibliography1

29、ISO 633, Cork Vocabulary4 ISO 2016 All rights reservedBS ISO 2190:2016BS ISO 2190:2016ISO 2190:2016(E) ISO 2016 All rights reservedICS 79.100Price based on 4 pagesThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publica

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