ISO INTERNATIONAL STANDARD 11093-1 First edition 1994-12-15 Paper and board - Testing of cores - Part 1: Sampling PapieretcartonEssaisdesmandrins- Partie 1: Echantillonnage ISO Reference number ISO 11093-1:1994(E) ISO11093-1:1994(E) Foreword IsO (the International Organization for Standardization) is a worldwide preparing International Standards is normally carried out through isO technical committees. Each member body interested in a subject for which atechnical 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 of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IsO 11093-1 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 -Part2:Conditioningoftestsamples - Part 3: Determination of moisture content using the oven drying method -Part4:Dimensionalmeasurements -Part5:Determinationofcharacteristicsof concentricrotation Part 8: Machine test for dynamic cleavage Part 9: Determination of flat crush resistance ISO1994 All rights reserved.Unless otherwise specified, no part of this publication maybe reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. InternationalOrganizationforStandardization Casepostale56·CH-1211Geneve20·Switzerland Printed in Switzerland ii ISO 11093-1:1994(E) INTERNATIONALSTANDARD ISO Paper and board Testing of cores . Part 1: Sampling 1 Scope 4 Procedure This part of ISO 11093, based on isO 186:1994, Paper Take the specimens at random, their number as given and board - Sampling to determine average quality, in table 1. specifies a method for obtaining a representative sample of a lot of cores for test purposes. Table 1-Number of specimens NOTE1 If less than 50 % of the lot is available for Number of cores Number of specimens sampling, then sampling will be invalid in the absence of up to 99 5 agreement to the contrary. 100 to 499 10 500 and more Definitions 20 2 For the purposes of this part of ISO 11093, the following definitions apply. 5 Additional requirements 2.1 lot: Aggregate of cores., of asingle kind 5.1 Precautions possessing specified characteristics. Specimens and test pieces shall be protected from A lot may comprise one or more identical packaged harmful influences, forexample direct sunlight, units. considerable climatic fluctuations, liquids, etc. 2.2 specimen: Completeundamaged coretaken from a packaged unit. 5.2 Marking Specimens and test pieces shall be provided with 2.3 sample: Aggregate of all specimens. markings adequate to ensure that each specimen and test piece can be identified beyond all doubt. These 2.4 test piece: Complete core or a core section on identification markings shall be indelible. They may be which testing is carried out in accordance with the limited to the number of the sampling report and the stipulations of the method of test. sampler's signature. 2.5 seiected at random: Taken in such a manner that each part of the lot has an equal chance of being 5.3 Re-sampling selected. If, as a result of an accident during sampling or testing, re-sampling is necessary, a new sample shall 3Principle be taken in accordance with the aforementioned specifications. Unless otherwise specified, samples A selection of cores is taken at random from may be taken from the same packaged units as p