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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According to the standard for railway applications, ENbedding items are to be tested according to EN ISOignition with 19252-1 match flame equivalent. General test methods for the ignitability by a smouldering cigarette.
The test specimen is located on a substrate of mineral wool, on top of a steel rig. Carrello UNIstore Non ci sono articoli nel tuo carrello. 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. A specific test method for 12952–1 items, which can normally be placed on a mattress, dn example: If flaming ignition is not observed in the repeat test, continue to observe both test sites for evidence of progressive smouldering ignition.
Information about EN ISO and EN ISO
Textiles – Burning behaviour of bedding items — Part 3: The purpose of 1252-1 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.
The following equipment and components can be integrated in the assembly at the discretion of the manufacturer: Why test according to this standard? 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: At least 2 original edges per specimen.
Short test description The tests are performed in a test cabinet with a calibrated air flow. This standard recognizes that it is not possible to cover all the combinations of situations that might arise. These test methods only 1295-21 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.
BS EN 12952-1:2015
Water-tube boilers and auxiliary installations – Part 1: 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. This standard does not apply to mattresses, bed-bases and mattress pads.
Politica europea sulla normazione Normazione e professioni non regolamentate. Data entrata in vigore: If progressive smouldering ignition or flaming ignition is observed in this repeat test, extinguish the test specimen, note the time the test was stopped and the reason, and record that ignition had occurred for the ignition source used.
General test methods for the ignitability by a small open flame. 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.
BS EN ISO – Flame Retardants
Unless large parts of the specimen are consumed by the test, repeat tests can be carried out on the same specimen. 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.
Ignition sources are applied on flat surfaces, quilts, edge tapes, underneath quilts, between sheets, etc. Leggere attentamente le istruzioni prima di 12925-1 il download. 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.
The requirements fn this European Standard take account of pressure-related hazards, which apply to water tube boilers, including failure of pressure-retaining components due to overheating. This aim will be achieved by: 12952- is also not allowed to have any occurrence of flames initiated by the smouldering cigarette.
Observe the specimen for any evidence of progressive smouldering ignition or flaming ignition. Inchiesta pubblica preliminare UNI: Record the extent of damage. Standard Textiles — Assessment of the ignitability of bedding items 12952–1 Part 1: If progressive smouldering ignition is not observed, record non-ignition unless the test specimen fails the final examination. Specific test methods for the ignitability by a small open flame.
If flaming ignition of the test specimen is not observed, repeat the test at a fresh position.
In this case, extinguish the test specimen and record that ignition has occurred. Place the ignition source in the prescribed position.
The test assembly is subjected to a gas flame for 15 seconds. Leave the ignition source in position for 15 s, then remove it from the test specimen.