ISO Oxygen Index. ISO , Determination of burning behaviour by oxygen index. Areas of use. All types of plastics that are self-supporting and in the. l’indice d’oxygène —. Partie 2: Essai à la température ambiante. STANDARD. ISO. Second edition. Reference number. ISO (E). ISO Plastics Determination of burning behaviour by oxygen index Part 2: Ambient- temperature test. ISO Burning test for Oxygen Index test.
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Exhibited at Interflam Alternative size for self supporting moulding or sheet materials, for electrical purposes.
This part of ISO specifies methods for determining the minimum concentration of oxygen. The method is refered to in the standard for iso 4589-2 behavour of materials and components in railway applications EN Burning test for Oxygen Index test – Principle.
Digital display of oxygen percentage in atmosphere during iso 4589-2 no calculations needed. A method is provided for testing flexible sheet or film materials while supported vertically.
Automatic flow control gives oxygen level adjustment by turning one single valve. At least 20 samples iso 4589-2 the dimensions 80 — mm x 10 mm, thickness 4 or 10 mm. The upper end of the specimen is ignited and the subsequent burning behaviour of the specimen is observed to compare the period for which burning continues, or the length of the specimen burnt, with specified limits for such burning.
Results obtained from test specimens of. Digital display of temperature of gas mixture entering the test iso 4589-2. The technique measures the minimum percentage of oxygen in the test iso 4589-2 that is required to marginally support combustion.
Oxygen index results obtained using the methods iso 4589-2 in this part of ISO can provide a sensitive measure of the burning characteristics of materials under certain controlled laboratory conditions, and hence may be useful for quality control purposes.
By testing a series of specimens in different oxygen concentrations, the minimum oxygen concentration is estimated. Plastics — Determination of burning behaviour by oxygen izo — Part 2: The results are defined as oxygen index iso 4589-2.
Areas of use All types of plastics that are self-supporting and in the form of vertical bars or sheet up to For comparative purposes, a procedure is provided uso determining whether or not iso 4589-2 oxygen index of a material lies above some specified minimum value. Sample holders for both iso 4589-2 and flexible samples supplied.
For particular materials or applications, it may be necessary or appropriate to iso 4589-2 different test conditions. Ieo above dimensions are for moulded or cellular materials.
BS EN ISO 4589-2:2017
Verify iso 4589-2 the test lab which thickness iao. Burning test for Oxygen Index test – Scope. Example of products that can be tested according to this method Plastic materials, cable insulation, duct iso 4589-2, laminates. Verify dimensions with test lab.
Fire Testing Technology | Oxygen Index
By testing a series of specimens in different oxygen concentrations, the minimum oxygen concentration is estimated. By testing 4589-22 series of specimens in different oxygen concentrations, the minimum oxygen concentration is iso 4589-2.
The upper end of the specimen is ignited iso 4589-2 the subsequent burning behaviour of the specimen is observed to compare the isoo for which burning continues, or the length of the specimen burnt, with specified limits for such burning.
Alternatively, for comparison with a specified minimum oxygen index value, three test specimens iso 4589-2 tested using the relevant oxygen concentration, at least two of which are required to extinguish before any relevant burning isoo is exceeded.
ISO Oxygen Index
Supplied Other Service requirements: Compact unit for iso 4589-2 use inside a laboratory hood, with ventilation.
The upper end of the specimen is ignited and the subsequent burning behaviour iso 4589-2 the specimen is observed to compare the period for which burning continues, or the length of iao burnt, with specified limits for such burning. The sample dimensions depend on the type of material. Stabilised oxygen percentages are read from the digital readout and no additional flow adjustments are required.
The sio obtained are dependent upon the shape, orientation and isolation of the test specimen and iso 4589-2 conditions of ignition.