ISO INTERNATIONAL STANDARD 11093-3 First edition 1994-12-15 Paper and board - Testing of cores Part 3: Determination of moisture content using the oven drying method Papier et carton - Essais des mandrins - Partie 3: Détermination de la teneur en eau par séchage a I'étuve ISO Numéro de référence ISO11093-3:1994(E) No reproduction or networking permitted without license from IHS Not for Resale ISO 11093-3:1994(E) Foreword IsO (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 in a subject for which and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (lEC)onallmattersofelectrotechnicalstandardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International a vote. International Standard iSO 11093-3 was prepared by Technical Committee ISO/TC 6, Paper, board and pulps, Subcommittee SC 3, Dimensions and grammage of paper, board and pulp products. IsO 11093 consists of the following parts, under the general title Paper and board Testing of cores: —Part1:Sampling Part 2: Conditioning of test samples - Part 3: Determination of moisture content using the oven drying method - Part 4:Dimensional measurements Part 5: Determination of characteristics of concentric rotation Part 8: Machine test for dynamic cleavage Part9:Determinationof flatcrushresistance @ISO1994 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56 · CH-1211 Geneve 20 · Switzerland Printed in Switzerland ii Copyright International Organization for Standardization No reproduction or networking permitted without license from IHS Not for Resale ISO11093-3:1994(E) INTERNATIONALSTANDARD ISO Paper and board - Testing of cores - Part 3: Determination of moisture content using the oven drying method 1 Scope 3.2 dry weight, mo: Mass of the test piece after drying to constant mass. This part of IsO 11093 specifies an oven method for determiningthemoisturecontentof woundpaperand 3.3 constant mass: Constant mass is deemed to board coresatthetimethe sampleistaken. have been reached when two successive weighings show a difference of no more than 0,1 % of the This method can be taken for all types of core from specimen mass mu. whichwateristhemainvolatilecomponenttoescape atthe specifieddryingtemperature. The time between successive weighings shall be at least 7 hours for each 4 mm of wall thickness. 2 Normative reference 4 Principle The following standard contains provisions which, Weighing of the test piece at the time of sampling. throughreference inthistext,constituteprovisionsof andagainafterdryingtoconstantmass. this part of IsO 11093. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this 5 Apparatus part of IsO 11093 are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. Members of IEC and ISO 5.1 Balance,having an accuracy of 0,05% of the mass to be weighed, or better. maintain registers of currently valid International Standards. 5.2 Test piece containers, for the transport and ISO 11093-1:1994, Paper and board Testing of weighing of test pieces, which shall be water-vapour proof and made in a light-weight construction from a cores Part 1: Sampling. material notsubjectto change underthe conditions of test. 3 Definitions 5.3 0ven, capable of being maintained at 105 °C ± 2 °℃. For the purposes of this part of IsO 11093, the following definitions apply. 6 Sampling 3.1 moisture con