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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Peak Rate of Heat Release.
ISO – Flame Retardants
Volatile gases from the heated specimen are oso by an electrical spark igniter. Areas of use The test method is used for fire technical modelling.
The test gives a possibility to evaluate: The data from the test results can be used for modelling bigger fires. The surface of the sample is heated and starts to emit pyrolysis gases that ignite by a spark igniter. 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.
Range of Operating Conditions. The test report contains information about dimensions, pretreatment and conditioning of the test specimens, and 6560-1 about the test conditions. The specimen is mounted on a load cell which records the mass loss rate of the specimen during combustion. Maximum thickness 50 mm. When testing a product according to ISOa sample with the dimension mm x mm is subjected to a specific irradiance level.
The test method is also used for third party verification production control. Additionaly, measurements of smoke production and production of toxic gases can be performed during the test. A complete test requires that at least 12 specimens are available. Up to s. A thorough analysis requires testing at several irradiance levels.
Time to Peak Rate of Heat Release.
Ave 3 min rate of heat release. Smoke production is assessed by measuring attenuation of a laser beam by smoke in the exhaust duct. Dimensions of the specimens: The following test results are tabulated:.
Fire gas and smoke yields per gram of sample burnt are also calculated. The specimens shall be representative of the product, and as far as possible be similar to the final product.
The emitted gases are collected in a hood and transported away through a ventilation system. The smoke production is measured continually throughout the test with a laser system. Typical output summaries may include: The surface of the specimens shall be essentially flat.
A whole range of different data can be compared in order to eliminate products that will not have the sufficient fire characteristics. Controlled Atmosphere version available. The test gives a possibility to evaluate:. Test procedure When testing a product according to ISOa sample with the dimension mm x mm is subjected to a specific irradiance level.
The unit m2 is related to specimen area. The cone calorimeter test is also largely used when testing products that are under development. Combustion gases are collected by an exhaust hood for further analysis. The following results are given graphically for each of the applied irradiation levels:.
ISO 5660-1 & 2 Cone calorimeter
According to ISO The test method is used for fire technical modelling. Effective heat of combustion.
Often shortly after ignition for non-FR materials but some may show two peaks. The Cone Calorimeter test is at present the most advanced method for assessing materials reaction to fire. The method follows the procedure given in international standard ISO This gas analysis makes it possible to calculate heat release rate and to assess production of toxic gases from the specimen.
Levels of toxic gases can also be measured with FTIR analysis. The heat release is measured using the data on measured oxygen concentration in the emitted smoke.
The following test results are tabulated: It is also possible to measure production of other gas components, like HCN cyanic acid.