ISO 4589-2 PDF

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. Purchase your copy of BS EN ISO as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards.

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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. Test procedure A small test specimen is supported vertically in a mixture of oxygen and nitrogen flowing upwards through a transparent chimney.

Test procedure A small test specimen is supported vertically in a mixture of oxygen and nitrogen flowing upwards through a iiso chimney. Isl of products that can be tested according to this method Plastic materials, cable insulation, duct insulation, laminates.

UL Thermoplastics Testing Center – LOI (EN)

The results are defined as oxygen index values. The above dimensions are for moulded or cellular materials. A small test specimen is supported vertically in a mixture of oxygen and nitrogen flowing upwards through a transparent chimney.

Results obtained in accordance with this part of ISO must not be used to describe or appraise the fire hazard presented by a particular material or shape under actual fire 45589-2, unless used as one element of a fire ieo assessment that takes into account all of the factors pertinent to the assessment of the fire hazard of a particular application for the material.

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Burning test for Oxygen Index test – Principle. For comparative purposes, a procedure is provided for determining whether or not the oxygen index of a material lies above some specified minimum value. The isp is refered to in the standard for fire behavour of materials and components in railway applications EN Burning test for Oxygen Index test – 4589–2. By testing a series of specimens in different 458-92 concentrations, the minimum oxygen concentration is estimated.

For particular materials or applications, it may be ido or appropriate to specify different test conditions. Verify dimensions with test lab. Plastics — Determination of burning behaviour by oxygen index — Part 2: For flexible film or sheet. If the film is very thin, it may be necessary to combine two or more films together in the preparation of the rolled film so as to obtain results similar to those nominally obtained with the specimen form Vl.

By testing a series of specimens in different oxygen concentrations, the minimum oxygen concentration is estimated. Alternatively, for comparison with a specified minimum oxygen index value, three test specimens are tested using the relevant oxygen concentration, at least two of which are required to extinguish before any relevant burning criterion is exceeded.

When testing according to ISOthe test results will show which oxygen concentration is needed for a specific material to burn continuously. Depending on the type of material the thickness is different.

A method is provided for testing isp sheet or film materials while supported vertically. Methods are provided for testing materials that are self-supporting in the form of vertical bars or sheet up to 10,5 mm thick. Reduced test series, one specified oxygen concentration.

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Areas of use All types of plastics that are self-supporting and in the form of vertical bars or sheet up to This part of ISO specifies methods for determining the minimum concentration of oxygen. Example of products that can be tested according to this method Plastic material, cable insulation, duct insulation, laminate, printed circuit board.

ISO 4589-2 Oxygen Index

Alternative size for self supporting moulding or sheet materials, for electrical purposes. Oxygen index results obtained using the methods described 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.

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 specimen burnt, with specified limits for such burning.

Areas of use All types of plastics that are self-supporting and in the form of vertical bars or sheet up to Results obtained from test specimens of. 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.

The materials can be solids, laminates or cellular. Verify with the test lab which thickness applies. Dimensions in the table are of an original film from which the rolled form is made.

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