ISO INTERNATIONAL STANDARD 6556 Second edition 2012-10-01 Laboratory glassware Filter flasks VerreriedelaboratoireFiolesafiltrer Reference number ISO 6556:2012(E) ISO @ISO2012 y IHS under lic or networking permitted without license from IHS Not for Resale ISO 6556:2012(E) COPYRIGHTPROTECTEDDOCUMENT ISO 2012 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 · CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ISO 2012-All rights reserved No reproduction r networking permited without license from IHS Not for Resale ISO 6556:2012(E) Contents Page Foreword .iv 1 Scope 2 Normative references 3 Series and capacities 4 Material. 5 Construction. 5.1 Pressure strength 5.2 Shape...... 5.3 Radius of curvature of base 5.4 Wall thickness 5.5 Neck 5.6 Protectivecoating 6 Series Afilter flasks 6.1 Vacuum connection (side-arm) 6.2 Dimensions.. 7 Series B filter flasks. 7.1 Vacuumconnection (side-arm), 7.2 Dimensions. 5 8 Thermal shock endurance. 5 9 Inscriptions 5 Annex A (normative)Type testfor pressure strength Bibliography ili e with I license from IHS Not for Resale