ISO INTERNATIONAL STANDARD 7870-5 First edition 2014-01-15 Control charts - Part 5: Specialized control charts Cartes de controle - Partie 5: Cartes de controle particulieres Reference number IS0 7870-5:2014(E) ISO @IS02014 No reproduction or networking permitted without license from IHS Not for Resale IS0 7870-5:2014(E) COPYRIGHT PROTECTED DOCUMENT @ISO2014 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form 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 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 @ IS0 2014 - All rights reserved No reproduction or networking permited without license from IHS Not for Resale IS0 7870-5:2014(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ...1 2 Normative references 3 Terms and definitions 4 Symbols and abbreviated terms 4.1 Symbols .4 4.2 Abbreviated terms ..5 5 Specialized control charts. .5 6 Moving average and moving range control charts .5 6.1 Control limits .6 6.2 Interpretation 6.3 Advantages ..6 6.4 Limitations 6.5 Example. .6 7 z- chart. .9 7.1 Control limits 7.2 Advantages .10 7.3 Limitations. .10 7.4 Example. ..10 8 Group control chart .10 8.1 Control limits ..12 8.2 Advantages. ..12 8.3 Limitations. .13 8.4 Example. ..13 9 High-low control chart ..16 9.1 Control limits .16 9.2 Interpretation .17 9.3 Advantages .17 9.4 Limitations ..17 9.5 Example. ..17 10 Trend control chart .19 10.1 Control limits 20 10.2 Advantages .20 10.3 Limitations. 21 10.4 Example. .21 11 Control chart for coefficient of variation .24 11.1 Control limits 24 11.2 Advantage. .24 11.3 Limitation. .24 11.4 Example. .25 12 Control chart for non-normal data .26 12.1 Control limits 27 12.2 Example. ..28 13 Standardized p- chart .32 13.1 Control limits .34 13.2 Advantages and limitations. .34 13.3 Example 34 Copyritnteatinal rganizason t? Sanadizah rights reserved iii ded by IHS under license with ISt ed without license from IHS Not for Resale