ISO INTERNATIONAL STANDARD 4157-3 First edition 1998-12-01 Construction drawings Designation systems - Part 3: Room identifiers Dessins debatiment Systemes de désignation- Partie 3: Ildentificateurs de pieces TSO Reference number ISO 4157-3:1998(E) IHSunder Not for Resale ISO 4157-3:1998(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 established has liaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnical Commission(lEC)onallmattersofelectrotechnicalstandardization. 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. International Standard ISO 4751-3 was prepared by Technical Committee ISO/TC 10, Technical drawings, product definition and related documentation, Subcommittee SC 8, Construction documentation. IsO 4157 consists of the following parts, under the general title Construction drawings —Designation systems: Part 1: Buildings and parts of buildings Part 2: Room names and numbers Part 3: Room identifiers @ISO1998 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic nternationalOrganizationforStandardization Casepostale56·CH-1211Geneve20·Switzerland Internet [email protected] Printed in Switzerland ional Organization for Standardizatior INTERNATIONAL STANDARD ISO ISO 4157-3:1998(E) Construction drawings Designation systems - Part 3: Room identifiers 1 Scope This part of isO 4157 establishes requirements for designation systems for rooms, areas, spaces, and voids in throughout its life cycle, i.e. the conception, programming, planning, erection, maintenance, remodelling and demolition phases. 2 Normative references The following standards contain provisions, which through reference in this text, constitute provisions of this part of IsO 4157. At the time of publication, the editions indicated were valid. All standards are subject to revision, and most recent editions of the standards indicated below. Members of IEC and IsO maintain registers of currently valid International Standards. IsO 4157-1:1998, Construction drawings — Designation systems — Part 1: Buildings and parts of buildings. Iso 4157-2:1998, Construction drawingsDesignation systems—Part 2: Room names and numbers. 3 Definitions For the purposes of this part of iSO 4157, the definitions given in ISO 4157-1 apply 4 Room identifiers principle 4.1 General rules When appropriate for the planning, maintenance or management purposes of a building, room identifiers shall be assigned to each and every room, i.e. room, area, space, void, etc., of a building. Room identifiers shall be allocated in consecutive order for each storey and may not be revised during the lifecycle of a building.Theyserve as unique identification of aroomwhich is planned,built or extinct,and isconceivedfor the interface between the building and a computerized information system. They uniquely identify rooms, areas, 4.2 Geometry For the purposes of room identifiers, rooms shall be geometrically defined by their physical boundaries, or with imaginary planes which shall correspond with building parts such as storey level, protruding beams or partitions. For the purpose of room numbers (see IsO 4157-2) such bounds may have been left undefined. Copyright Inte onalOrganizationfor Standardization >