© ISO 2016 Granulated cork — Determination of moisture content Granulés de liège — Détermination de l’humidité INTERNATIONAL STANDARD ISO 2190 Fourth edition 2016 10 01 Reference number ISO 2190 2016([.]
INTERNATIONAL STANDARD ISO 2190 Fourth edition 2016-10-01 Granulated cork — Determination of moisture content Granulés de liège — Détermination de l’humidité Reference number ISO 2190:2016(E) © ISO 2016 ISO 2190:2016(E) COPYRIGHT PROTECTED DOCUMENT © ISO 2016, Published in Switzerland All rights reserved Unless otherwise specified, no part o f 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 requested from either ISO at the address below or ISO’s member body in the country o f the requester ISO copyright o ffice Ch de Blandonnet • CP 401 CH-1214 Vernier, Geneva, Switzerland Tel +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org ii © ISO 2016 – All rights reserved ISO 2190:2016(E) Page Contents Foreword iv Scope Normative references Terms and definitions Principle Apparatus Sampling Procedure Results Test report 7.1 7.2 Test sample Determination 8.1 8.2 Calculation Expression of results Bibliography © ISO 2016 – All rights reserved iii ISO 2190:2016(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies) The work o f 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 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 Commission (IEC) on all matters o f electrotechnical standardization The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part In particular the different approval criteria needed for the di fferent types o f ISO documents should be noted This document was dra fted in accordance with the editorial rules of the ISO/IEC Directives, Part (see www.iso.org/directives) Attention is drawn to the possibility that some o f the elements o f this document may be the subject o f patent rights ISO shall not be held responsible for identi fying any or all such patent rights Details o f any patent rights identified during the development o f 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 in formation given for the convenience o f users and does not constitute an endorsement For an explanation on the meaning o f ISO specific terms and expressions related to formity assessment, as well as information about ISO’s adherence to the World 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 minor revision Minor editorial details have been introduced in this edition (see French title and Clause and 5.3) iv © ISO 2016 – All rights reserved INTERNATIONAL STANDARD ISO 2190:2016(E) Granulated cork — Determination of moisture content Scope This c u ment granulated cork NO TE s p e c i fie s the re ference me tho d fo r de te r m i n atio n of the mo i s tu re co nte nt of Fo r the p u r p o s e s o f fac tor y control , the m a nu fac tu rer c a n cho o s e a no ther te s t me tho d a nd/o r d i fferent equipment In this case, it is important to establish the co-relation between that method (current method) and the reference method Normative references T he fol lowi ng c u ments are re ferre d to i n the tex t i n s uch a way th at s ome or a l l o f thei r content s titute s re qu i rements o f th i s c u ment For date d re ference s , on ly the e d ition cite d app l ie s For u ndate d re ference s , the late s t e d ition o f the re ference d c ument (i nclud i ng a ny amend ments) appl ie s ISO 2067, Granulated cork — Sampling Terms and definitions For the pu r p o s e s o f th i s c u ment, the term s and defi nition s given i n I S O 3 and the fol lowi ng apply ISO and IEC maintain terminological databases for use in standardization at the following addresses: — ISO Online browsing platform: available at http://www.iso.org/obp — IEC Electropedia: available at http://www.electropedia.org/ 3.1 moisture content lo s s o f ma s s o f a te s t s p e ci men a fter d r yi ng under s p e c i fic cond ition s , comp are d to the i n iti a l ma s s o f the test specimen Principle Weigh i ng , d r yi ng and reweigh i ng o f a te s t s p e c i men; the lo s s o f mas s c a lc u late d i s the moi s tu re content Apparatus O rd i nar y l ab orator y e quipment and, i n p a r tic u l ar, the fol lowi ng 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) , o f s uch dimens io ns that allo w the tes t s p ecimen to b e ab o ut mm high To d r y the contai ners , put them i n the oven at 103 ° C for 30 © ISO 2016 – All rights reserved for m i n T hen put the contai ners i n the de s icc ator ISO 2190:2016(E) 5.4 Desiccators , o f adequate cap acity to ho ld the co ntainers , and co ntaining an e fficient des iccant (e g silica gel) Sampling C arr y out the s a mpl i ng i n accordance with the pro ce du re s p e ci fie d i n I S O 67 7.1 Procedure Test sample From the l ab orator y s ample (s e e I S O 67 ) , ta ke at random th re e te s t s p e c i men s o f ab out g e ach 7.2 Determination Determine the mass of each container (5.3) to the nearest 0,1 g (m1) Place e ach te s t s p e ci men i n a contai ner, d i s tributi ng it i n s uch a way that its s u r face i s hori z onta l and the test specimen is about 50 mm high Determine the mass of each set (m ), to the nearest 0,1 g Put the sets in the oven (5.2) set at 103 °C, for at least h Then place them in the desiccator and let them cool for at least 30 Then determine the mass of each set Repeat the procedure described above until constant mass (i.e until two consecutive weighings of each ff m ) s e t no t d i er b y more th an , g) ( To accelerate the te s t, it i s advi s able that the fi rs t d r yi ng b e 8.1 for at le as t h Results Calculation T he moi s tu re content o f e ach te s t s p e ci men re ferre d to i n the i n iti a l ma s s ( b e fore d r yi ng) a nd e xpre s s e d as a p ercentage, rou nde d o ff to the ne are s t i nteger, i s given b y the m2 − m3 m − m1 formu l a: × 100 where m1 ff f m is the mass, in grams, rounded off to the nearest 0,1 of the container and test specimen (set) i s the mas s , i n gra m s , rou nde d o to the ne are s t ,1 o the contai ner; b e fore d r yi ng; m is the mass, in grams, rounded off to the nearest 0,1 of the container and test specimen (set) a fter d r yi ng 8.2 Expression of results Take as the moisture content of the granulated cork the average, rounded off to the nearest integer, of the results obtained for each test specimen © ISO 2016 – All rights reserved ISO 2190:2016(E) Test report The test report shall include the following particulars: a) a l l de ta i l s re qui re d to identi fy the s a mp le; b) the result obtained, in accordance with Clause ; c) re ference to th i s c u ment; d) a l l op erati ng de tai l s no t s p e ci fie d i n th i s c u ment, or regarde d a s op tiona l; e) de ta i l s o f a ny i ncidents wh ich may have i n fluence d the re s u lts © ISO 2016 – All rights reserved ISO 2190:2016(E) Bibliography [1] ISO 633, Cork — Vocabulary © ISO 2016 – All rights reserved ISO 90: 01 6(E) ICS 79.1 00 Price based on pages © ISO 2016 – All rights reserved