ISO INTERNATIONAL STANDARD 16814 Fist edition 2008-10-15 Building environment design Indoor air quality Methods of expressing the quality of indoor air for human occupancy Conception de I'environnement des batiments - Qualite de I'air interieur- Methodes d'expression de la qualite de I'air interieur pour une occupation humaine Reference number ISO 16814:2008(E) @ ISO 2008 ISO 16814:2008(E) Contents Page Foreword. iv Introductior 1 Scope 2 Normative references . 3 Terms and definitions 4 Methods of expressing indoor air quality (IAQ) 4.1 General..... 4.2 Method based on health... 4.3 Method basedonperceivedairquality 4.4 Method based on the ventilation rate . 5 Conformance 6 Design process .8 7 Designbriefparametersandassumptions 9 7.1 Objectives... 7.2 Constraints. .9 7.3 Determination of the basis of the IAQ target level 13 AnnexA(informative)Sourcesandcontrolofindoorairpollution... 17 Annex B (informative) Methods of expressing IAQ .. 22 Annex C (informative) Examples of WHO air quality guidelines . Annex D (informative) Emissions from building materials . Annex E (informative) Air cleaning devices . Annex F (informative) HVAC equipment as a source of pollution Annex G (informative) Ventilation effectiveness 48 Bibliography... @Is02008-All rights reserved ii ISO 16814:2008(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work of preparing International Standards is normally carried out through IsO technical committees. Each member body interested in a subject for which a technical committee has been International Standards are drafted in accordance with the rules given in the ISO/lEc Directives, Part 2 The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 16814 was prepared by Technical Committee ISO/TC 205, Building environment design. iv @Iso2008-Allrightsreserved