ISO 8191-1 INTERNATIONAL STANDARD First edition 1987-02-01 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION MEXKAYHAPOAHAA OPIAHM3AMA NO CTAHAAPTW3ALMM Furniture - Assessment of the ignitability of upholstered furniture Part 1: Ignition source: smouldering cigarette Ameublement - Evaluation de I'allumabilite des meubles rembourres -- Partie 1: Source d'allumage: cigarette en combustion Reference number ISO 8191-1 : 1987 (E) Copyright International Organization for Standardization Not for Resale 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 the right to be represented on that committee. International organizations, govern- mental and non-governmental, in liaison with iso, also take part in the work. Draft International Standards adopted by the technical committees are circuiated to the member bodies for approval before their acceptance as International Standards by the ISO Council. They are approved in accordance with ISO procedures requiring at International Standard ISO 8191-1 was prepared by Technical Committee ISO/TC 136, Furniture. Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other International Standard implies its latest edition, unless otherwise stated. International Organization for Standardization, 1987 Printed in Switzerland Copyright Intenatinal Organization for Standardization ed without license from IHS Not for Resale ISO 8191-1 : 1987 (E) INTERNATIONAL STANDARD Furniture Assessment of the ignitability of upholstered furniture Part 1: Ignition source: smouldering cigarette 4 Criteria of ignition Introduction 0 This part of ISo 8191 is one of a series of standards concerned 4.1 Progressive smouldering ignition with the ignitability of upholstered furniture using different ignition sources. The ignition source used in this part is a For the purposes of this part of ISO 8191, all the following types smouldering cigarette. of behaviour are considered to be progressive smouldering ignitions: It is the intention to publish further parts utilizing a series of flaming ignition sources of increasing severity. Part 2 will use a any test assembly that displays escalating combustion a) gas flame representing a match equivalent flame as the first behaviour so that it is unsafe to continue the test and requires active extinction; step in the series and it is anticipated that further parts will extend the range by using larger gas flames and either wooden b) any test assembly that smouiders until it is essentially cribs or filled paper bags. consumed within the test duration; c) any test assembly that smoulders to the extremities of the specimen, viz upper or lower margins, either side or to Scope and field of application its full thickness, within the duration of the test; This part of IS0 8191 tays down a method of test to assess the d) any test assembly that, on final examination, shows ignitability of material combinations, such as covers and fillings evidence of charring other than discoloration, for more than used in upholstered seating when subjected to a smouldering 100 mm in any direction apart from upwards from the cigarette as an ignition source. nearest part of the original position of the source. The tests measure only the ignitability of a combination of NOTE - In practice it has been found that there is usually a clear materials used in upholstered seating and not the ignitability of distinction between materials which may char under the influence of the ignition source but which do not propagate further (non a particular finished item of furniture incorporating these progressive combustion) and