INTERNATIONAL ISO STANDARD 9008 First edition 1991-12-15 Glass bottles --. Verticality --- Test method Bouteilles en verre --- Verticalite -- Methode d'essai Reference number ISO 9008:1991(E) ISO 9008:1991(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 normalty 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, govern- mental and non-governmentai, 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 technicaf committees are circulated to the member bodies for voting. Publication as an Inter- national Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard 1so 9008 was prepared by Technical Committee isO/TC 63, Glass containers, Sub-Committee SC 2, Test methods. C 1SO1991 All rights reserved. No part of this publicatfon may be reproduced or utllzed in any form or by any means, electronic or mechanical, including photocopylng and microfilm, without permisslon in writing from the publisher. International Organization for Standardization Case Postale 56:CH-1211 Geneve 20Swiltzerland Printed in Switzerland ISO 9008:1991(E) INTERNATIONAL STANDARD Glass bottles - Verticality --- Test method 3.2 verticallty tolerance: The limits outside which Scope 1 the verticality shail not deviate when the bottle is placed on a flat horizontal surface. This International Standard specifies a test method for determination of the verticality of glass bottles. Apparatus 4 NOTE 1 Deviation from the vertical axis may cause dif- ficulties on fast-filling lines. 4.1 The apparatus shalt be capable of maintaining This test method determines not only the deviation the base of the bottte horizontal and of measuring of the whole body from the verticai, but also the the deviation of the finish from the vertical to an ac- combined effect of various deformations which may curacy of 0,1 mm. also be present, e.g. the deviation of the neck from Various types of apparatus exist: for example, vertical, offset finish and ovality of the finish (ring). measurements can be made a) by comparison with a horizontal scale; Normative reference b) by using a dial gauge, and The following standard contains provisions which. through reference in this text,constitute provisions c) byprojecting a magnified shadow on a scale. of this International Standard. At the time of publi- In all cases, the measurements are carried out on cation, the edition indicated was valid. All standards the outside of the ring (finish). are subject to revision, and parties to agreements based on this International Standard are encour- aged to investigate the possibifity of applying the 4.2 For round bottles, the simplest form of appar- most recent edition of the standard indicated below. atus is a verticality gauge which comprises Members of EC and IsO maintain registers of cur- baseplate fitted with a V-biock, or a rotatable plate rentiy valid International Standards. with a three- or four-jaw self-centring chuck, and a vertica! pillar carrying a horizonta! scribe or dial Iso 7348:1991, Glass containers - Manufacture gauge which is adjustable with regard to height and Vocabulary. length. A non-touching tight-scanning apparatus may also be used. Definitions 4.3 For non-round bottles, a device should be used 3 which enables the bottle to be held in the centre of For the purposes of this International Standard, the a rotatable plate. definitions given in Iso 7348 and the following defi- nitions apply. 4.4 Apparatus other than that specified in this clause may be used provide