A fire sequence in the ISO – Room Corner Test and EN – SBI can for example be predicted using the ISO method. The cone calorimeter test is. The ISO Central Secretariat accepts no liability in this area. .. International Standard ISO was prepared by Technical Committee. Partie 1: Débit calorifique (méthode au calorimètre à cône) et taux de dégagement de fumée (mesurage dynamique). STANDARD. ISO.
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Range of Operating Conditions. Time to Peak Rate of Heat Release. The test gives a possibility to evaluate: Volatile gases from the heated specimen are ignited by an electrical spark igniter.
ISO 5660-1 & 2 Cone calorimeter
The smoke production is measured continually throughout the test with a laser system. Typical output summaries may include: The Cone Calorimeter test is at present the most advanced method for assessing materials reaction to fire.
Effective heat of combustion. Levels of toxic gases can also be measured with FTIR analysis. Additionaly, measurements of smoke production and production of toxic gases can be performed during the test. The heat release is measured using the data on measured oxygen concentration in the emitted smoke.
Peak Rate of Heat Release. Test procedure When testing a product according to ISOa sample with the dimension mm x mm is subjected to a specific irradiance level. Often shortly after ignition for non-FR materials but some may show two peaks. Smoke production is assessed by measuring attenuation of a laser beam by smoke in the exhaust duct.
A thorough analysis requires testing at several irradiance levels. The following results are given graphically for each of the applied irradiation levels:.
A complete test requires that at least 12 specimens are available. Controlled Atmosphere version available.
The test method is used for fire technical modelling. Up to s. 6560-1 to ISO The data from the test results can be used for modelling bigger fires. Fire gas and smoke yields per gram of sample burnt are also calculated.
The test gives a possibility to evaluate:. Maximum thickness 50 mm. The iao of the specimens shall be essentially flat. The test report contains information about dimensions, pretreatment and conditioning of the test specimens, and information about the test conditions. Areas of use The test method is used for fire technical modelling.
ISO & 2 Cone calorimeter
Ave 3 min rate of heat release. The surface of the sample is heated and starts to emit pyrolysis gases that ignite by a spark igniter. When testing a product according to ISOa sample with the dimension mm x mm is subjected to a specific irradiance level. The specimen isl mounted on a load cell which records iao mass loss rate of the specimen during combustion.
The following test results are tabulated:. The raw data is manipulated and heat release rates and effective heats of combustion are calculated together with averaged data calculated by oxygen consumption calorimetry.
This gas analysis makes it possible to calculate heat release rate and to assess production of toxic gases from the specimen.
The method follows the procedure given in international standard ISO It is also possible to measure production of other gas components, like HCN cyanic acid. Combustion gases are collected by an exhaust hood for further analysis.
The specimens shall be representative of the product, and as far as possible be similar to the final product. 566-01 cone calorimeter test is also largely used when testing products that are under development.