EN 12952-1 PDF

General This European Standard applies to water-tube boilers with volumes in excess of two litres for the generation of steam and/or hot water at a maximum . INTERNATIONAL. STANDARD. ISO. Second edition. Textiles — Assessment of the ignitability of bedding items —. Part 1: Ignition source. First edition. Textiles — Burning behaviour of bedding items —. Part 1: General test methods for the ignitability by a smouldering cigarette.

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Data entrata in vigore: General test methods for the ignitability by a smouldering cigarette.

If progressive smouldering ignition eh not observed, record non-ignition unless the test specimen fails the final examination. The purpose of this European Standard is to ensure that the necessary essential safety requirements according to Annex I of the Pressure Equipment Directive are fulfilled in order to guarantee the safety of water tube boilers.

BS EN – Water-tube boilers and auxiliary installations. General

This aim will be achieved by: Standard Textiles — Assessment of the ignitability of bedding items — Part 1: A specific test method for bedding items, which can normally be placed on a mattress, for example: Leave the ignition source in position for 15 s, then remove it from the test specimen. The test assembly is subjected to a gas flame for 15 seconds. The following equipment and components can be integrated in the assembly at the discretion of the manufacturer: It is also not allowed to have any occurrence of flames initiated by the smouldering cigarette.

This standard does not apply to mattresses, bed-bases and mattress pads. Materials that can be tested according to this standard Mattress covers, underlays, incontinence sheets and pads, sheets, blankets, electric blankets, quilts duvets and covers, pillows whatever the filling and bolsters, pillowcases.

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Place the ignition source in the prescribed position.

Record the extent of damage. The requirements of this European Standard take account of pressure-related hazards, which apply to water tube boilers, including failure of pressure-retaining components due to overheating. Specific test methods for the ignitability by a small open flame.

Short test description The tests are performed in a test cabinet with a 12952–1 air flow. Textiles – Burning behaviour of bedding items — Part 3: Carrello UNIstore Non ci sono articoli nel tuo carrello.

Unless large 1252-1 of the specimen are consumed by the test, repeat tests can be carried out on the same specimen. Why test according to this standard?

Information about EN ISO 12952-1:2010 and EN ISO 12952-2:2010

The bedding item must not smoulder or produce externally detectable amounts of smoke, heat or glowing after 15 minutes following the removal of the ignition source.

These test methods only evaluates the ignitability of bedding products and does not evaluate the burning behavior of a specific item. No flaming is allowed to continue for more than seconds after removal of ignition source, and the specimen must not burn until it is consumed within the test duration. The test specimen is located on a substrate of mineral wool, on top of a steel rig.

At least 2 original edges per specimen. If progressive smouldering or flaming ignition of the test specimen is observed, extinguish the test specimen, note the time the test was stopped and the reason, record that ignition had occurred and discontinue testing.

Information about EN ISO and EN ISO

The standard is used to assess the ignitability of bedding items when subjected to a smouldering cigarette and a match flame equivalent as ignition source. Introduzione I corsi di formazione Calendario Archivio corsi. Leggere attentamente le istruzioni prima di effettuare il download. During the cigarette test the bedding item is not allowed to smoulder or produce externally detectable amounts of smoke, heat or glowing after one hour from the beginning of the test.

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Water-tube boilers and auxiliary installations – Part 1: If flaming ignition is not observed in the repeat test, continue to observe both test sites for evidence of progressive smouldering ignition.

According enn the standard for railway applications, ENbedding items are to be tested according to EN ISOignition with a match flame equivalent.

If flaming ignition of the test specimen is not observed, repeat the test at a fresh position. This standard recognizes that it is not possible to cover all the combinations of situations that might arise. In this case, extinguish the test specimen and record that ignition has occurred. Politica europea sulla normazione Normazione 122952-1 professioni non regolamentate.

Inchiesta pubblica preliminare UNI: Ignition sources are applied 12952- flat surfaces, quilts, edge tapes, underneath quilts, between sheets, etc.

General test methods for the ignitability by a small open flame. Light the propane emerging from the burner tube, adjust the gas flow to the rate and allow the flow to stabilize for at least s. Textiles — Assessment of the ignitability of bedding items — Part 2: If progressive smouldering ignition or flaming ignition is observed in this repeat test, extinguish the test specimen, note the time the 1295-1 was stopped and the reason, and record that ignition had occurred for the ignition source used.

Observe the specimen for any evidence of progressive smouldering ignition or flaming ignition.