ISO/TR TECHNICAL REPORT 19815 First edition 2018-07 Information and documentation Management of the environmental conditions for archive and library collections Informationetdocumentation-Gestion desconditions environnementales pour les documents d'archive et de bibliotheque Reference number ISO/TR 19815:2018(E) @ IS0 2018 It license from IHS Not for Resale, 07/10/2018 08:51:47 MDT IS0/TR 19815:2018(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2018 All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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 CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122 749 0111 Fax: +41 22 749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland @ IS0 2018 - All rights reserved Not for Resale, 07/10/2018 08:51:47 MDT IS0/TR 19815:2018(E) Contents Page Foreword ..V Introduction. ...vi 1 Scope. ..1 2 Normative references ..1 3 Terms and definitions 4 General. ..6 5 Management of environment for optimization of preservation and sustainability 6 Temperature ..10 7 Relative humidity ..11 8 Climate and its consequences for collections. ..13 8.1 General ..13 8.2 Seasonal climates. .15 9 Insects and other pests ..15 10 Pollution ..15 11 Light ..16 12 Setting a temperature and relative humidity specification ..18 13 Psychrometrics. .22 14 Good practices for sustainability .27 14.1 General 27 14.2 Arnamagnaean Institute archive, Copenhagen, Denmark 28 14.3 Territorial archives, St Martin, West Indies 28 14.4 Japanese Imperial Archives, Tokyo. 28 14.5 Jersey Archive, Jersey, Channel Islands. 28 14.6 Norwegian National Library, Mo i Rana 29 14.7 Central State Archive of Saxony, Dresden, Germany 29 14.8 National Library of Singapore 29 14.9 Archives départmentales du Nord, Lille, France. 29 14.10 School library, Gando, Burkina Faso. 29 15 Educational and assessment tools .29 15.1 General .29 15.1.1 Overview. 29 15.1.2 Isoperm 30 15.1.3 Preservation index (PI) and time weighted preservation index (TWPI) .30 15.2 Environmental management tools and assessments 15.2.1 General. 31 15.2.2 Fundamental microclimate concepts 31 15.2.3 Air exchange between an enclosure and its surroundings 31 15.2.4 Calculatorfor atmospheric moisture 32 15.2.5 Calculator for energy use in museums. .32 15.2.6 Calculator for conservation heating. .32 15.2.7 Calculator for dehumidification energy load. .32 Annex A (informative) Energy economy Annex B (informative) Impact of temperature ..38 Annex C (informative) Impact of relative humidity .40 Annex D (informative) Material damage associated with temperature and relative humidity ....43 iii ler license with ANS rout license from IHS Not for Resale, 07/10/2018 08:51:47 MDT