ISO INTERNATIONAL STANDARD 10047 First edition 1993-04-01 Textiles Determination of surface burning time of fabrics Textiles - Détermination de la duree de bralage en surface des tissus Reference number ISO10047:1993(E) Copyright Intermational Organization for Standardization rovided by IHS cense with I3 rmitted without license from IHS Not for Resale ISO 10047:1993(E) Foreword IsO (the International Organization for Standardization) is a worldwide 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 and non-governmental, in liaison with isO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (lEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International a vote. ISO/TC38,Textiles,Sub-CommitteeSC19,Burningbehaviour of textiles and textile products. Annexes A and B form an integral part of this International Standard. C ISO1993 by any means. electronic or mechanical, including photocopying and microfilm, without per- mission in writing from the publisher International Organization for Standardization Case Postale 56 · CH-1211 Geneve 20 · Switzerland Printed in Switzerland ii CopyriahemationarganizatinforStandardzation nse from IHS Not for Resale INTERNATIONAL STANDARD IS010047:1993(E) Textiles Determination of surface burning time of fabrics 1 Scope testing area shall be cleared of smoke and fumes by suitable means of forcedventilation after eachtest. This International Standard specifies a method for the then restored to the required testing conditions (see measurement of surface burning time of textile fab- clause 6 and 8.1). rics which have a raised fibre surface, i.e. a napped, pile, tufted, flocked or similar surface. 5 Apparatus and materials 2 Definitions 5.1 Construction of testing equipment For the purposes of this international Standard, the The equipment shall be constructed of material which following definitions apply. will not be adversely affected by the gas fumes. 2.1 surface burn: Combustion limited to the surface Some products of combustion are corrosive, and the equipment shall be made of materials which will fa- of a material. cilitate cleaning. 2.2 surface burning time: Time required for the pile or nap of a fabric to burn a defined distance when 5.2 Specimen holder, consisting of a stainless steel tested by the method described herein. plate approximately 150 mm long, 75 mm wide and 3 mm thick (see figure 1). The specimen shali be framed by stainless steel 3 mm thick so that an area 3 Principle of125mmx50mmoffabricsurfaceisexposedfor testing. The frame shall have a reference mark which A dry specimen of the fabric is supported on a vertical shall be 75 mm below the ignition point of the test plate and its raised surfaceis ignited near the top in a specified manner. The spread of flame downwards specimen. on the surface of the fabric to a reference line is 5.3 Gas burner, as described in annex A. timed. NOTE1 The flame of a pile surface travels more NOTE2 Small differences in the design and dimensions reproducibiy downwards or sideways than upwards. It is of the burner can influence the configuration of the burner considered that the blanketing effect of the combustion flameand so affectthe results of thetests. productsmaynotalliowthesurfacepileabovetheflame front to burn, whereas the surface pile below the flame 5.4 Bottled gas, commercial grade propane or bu- front is not affected in this way. tane or mixtures thereof. 4 Health and safety of test operators 5.5 Timing device for burner, to control and measure the application time of the flame for a period Burning of textiles may produce smoke and toxic of 1,0 s ± 0,1 s. Aliternatively, flame application time g