ISO INTERNATIONAL STANDARD 4797 Third edition 2015-12-15 Laboratory glassware Boiling flasks with conical ground joints Verrerie de laboratoire - Fioles coniques et ballons a joint conique rodé Reference number ISO 4797:2015(E) ISO @ ISO 2015 IS0 4797:2015(E) COPYRIGHT PROTECTED DOCUMENT @ IS0 2015, Published in Switzerland All rights reserved. Unless otherwise specified, no part of 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 of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +4122 749 09 47 [email protected] www.iso.org @ IS0 2015 - All rights reserved IS0 4797:2015(E) Contents Page Foreword .iv 1 Scope. ..1 2 Normative references ..1 3 Types. ..1 4 Series of capacities .1 5 Material. ..1 6 Dimensions ..1 7 Ground glass joints .2 8 Thermal shock endurance 2 9 Marking ii