ISO INTERNATIONAL STANDARD 11907-4 First edition 1998-04-01 Plastics Smoke generation Determination of the corrosivity of fire effluents Part 4: Dynamic decomposition method using a conical radiant heater Plastiques Production de fumées - Determination de la corrosivité des effluents du feu- Partie 4: Méthode de décomposition dynamique utilisant un radiateur conique Tso Referencenumber ISO 11907-4:1998(E) HS under Not for Resale ISO 11907-4:1998(E) Foreword ISO (the International Organization for Standardization) is a world-wide 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, governmental and non-governmental, in liaison with ISsO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) 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 Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard 11907-4 was prepared by Technical Committee ISO/TC61, Plastics, Subcommittee SC 4, Burning behaviour. ISO 11907 consists of the following parts, under the general title Plastics - Smoke generation - Determination of the corrosivity of fire effluents: Part I: Guidance Part 2: Static method - Part 3: Dynamic decomposition method using a travelling furnace Part 4: Dynamic decomposition method using a conical radiant heater AnnexAof thispartofISO11907isforinformationonly @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 International Organization for Standardization Case postale 56 · CH-1211 Geneve 20 · Switzerland Internet [email protected] X.400 C=ch; a=400net; p=iso; 0=isocs; S=central Printed in Switzerland ed without license from IHS Not for Resale INTERNATIONAL STANDARD @ ISO ISO 11907-4:1998(E) Plastics Smoke generation Determination of the corrosivity of fire effluents Part 4: Dynamic decomposition method using a conical radiant heater WARNINGS 1 Avoidance of misleading inferences This standard method of test should be used solely to measure and describe the properties of materials, products or systems in response to heat or flame under controlled laboratory conditions and should not be considered or used by itself for describing or appraising the fire hazard of materials, products or systems under actual fire conditions or as the sole source on which regulations pertaining to corrosivity of fire effluents are based. 2 Avoidance of danger to test operators The test procedures involve high temperatures and combustion products. Therefore, conditions exist for burns, ignition of extraneous objects or clothing, and inhalation of combustion products. Use eye protection and use protective gloves for insertion and removal of test specimens. Do not touch either the cone heater or the associated fixtures while hot, except with the use of protective gloves. Vent the combustion products flowing through the exposure chamber through a properly designed exhaust system. Vent the captured combustion products in a smoke hood at the end of a test. Check the exhaust system for proper operation before testing, and discharge into a building exhaust system with adequate capacity. Make provisions for collecting and venting any combustion products that for whatever reason fail to be collected by the normal exhaust system of the apparatus. 1 Scope 1.1 This part of ISO 11907 specifies a test method for measuring the corrosive effect, by loss of metal from a target, of the combustion effluents of plastic materiais or produc