ISO INTERNATIONAL STANDARD 16063-42 Firstedition 2014-07-15 Methods for the calibration of vibration and shock transducers - Part 42: Calibration of seismometers with high accuracy using acceleration of gravity Methodes pour I'étalonnage des transducteurs de vibrations et de chocs Partie 42: Etalonnage des diomometres de haute exactitude utilisant I'acceleration duea lapesanteur Referencenumber IS016063-42:2014(E) LSO Copyright International Organization for Standardization @IS02014 cense from IHS Not for Resale IS016063-42:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO 2014 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 Casepostale 56.CH-1211Geneva20 Tel. +4122 749 0111 Fax +4122749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland @ IS0 2014 - All rights reserved No reproduction or r networking permited without license from IHS Not for Resale IS016063-42:2014(E) Contents Page Foreword ..iv 1 Scope ..1 2 Normative references 3 Traceability of measurement 4 Determination of local gravity .2 4.1 Method using absolute gravimeter. .2 4.2 Method using gravitational acceleration standardization network and relativegravimeter. .2 4.3 Method using gravitational acceleration standardization network 2 Requirementsforapparatus and environmental conditions .2 5.1 Calibration environment .2 5.2 Base and vibration environment (seismic block for calibration apparatus) .2 5.3 Voltage-measuringinstrumentation .2 5.4 Tuneable low-pass filter .3 5.5 Powersupply .3 5.6 Tilttable.. .3 6 Method .3 6.1 Calibration principle .3 6.2 Calibration procedure .5 7 Expressionofresults .6 AnnexA (normative)Expression ofuncertaintyofmeasurement in calibration .7 AnnexB(informative)Traceabilityofcalibrationmeasurementofseismometer ..8 Bibliography 9 orStanda iii icense from IHS Not for Resale