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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The test specimen is located on a substrate of mineral wool, on top of a steel rig. Carrello UNIstore 12952–1 ci sono articoli nel tuo carrello.
In this case, extinguish the test specimen and record that ignition has occurred. 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.
BS EN 12952-1:2015
Record the extent of damage. The test assembly is subjected to a gas flame for 15 seconds.
Standard Textiles — Assessment of the ignitability of bedding items — Part 1: Ignition sources are applied on flat surfaces, quilts, edge tapes, underneath quilts, between sheets, etc.
If flaming ignition is not observed in the repeat test, continue to observe both test sites for evidence of progressive smouldering ignition. 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.
It is also not allowed to have any occurrence of flames initiated by the smouldering cigarette. This standard recognizes that it is not possible to cover all the combinations of situations that might arise. Place the ignition source in the prescribed position. Unless large parts of the specimen are consumed by the test, repeat tests can be carried out on the same specimen.
Information about EN ISO 12952-1:2010 and EN ISO 12952-2:2010
If progressive smouldering ignition is not observed, record non-ignition unless the test specimen fails the final examination. 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. At sn 2 original edges per specimen.
If progressive smouldering or flaming ignition of the test specimen is observed, extinguish the test specimen, note 129521- time the test was stopped and the reason, record that ignition had occurred and discontinue testing.
Leave the ignition source in position for 15 s, then remove it from the test 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 rn test.
The standard is used to assess the ignitability of bedding items when subjected to a smouldering cigarette and a match flame equivalent as ignition ej.
This standard does not apply to mattresses, bed-bases and mattress pads. Observe the specimen for any evidence of progressive smouldering ignition or flaming ignition.
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. 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.
Why test according to this standard? These test methods only evaluates the ignitability of bedding products and does not evaluate the burning behavior of a specific item.
BS EN – Water-tube boilers and auxiliary installations. General
Specific test methods for the ignitability by a small open flame. This aim will be achieved by: 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.
Politica europea sulla normazione Normazione e professioni non regolamentate. Textiles — Assessment of the ignitability of bedding items — Part 2: General test methods for the ignitability by a small open flame.
Information about EN ISO and EN ISO
Data entrata in vigore: Short test description The tests are performed in a test cabinet with a calibrated air flow. According to the standard for railway applications, ENbedding items are to be tested according to EN ISOignition with a match flame equivalent. A specific test method for bedding items, which can normally be placed on a mattress, for example: Inchiesta pubblica preliminare UNI: Introduzione I corsi di formazione Calendario Archivio corsi.
Textiles – Burning behaviour of bedding items — Part 3: If fn ignition of the test specimen is not observed, repeat the test at a fresh position. 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.
General test methods for the ignitability by a smouldering cigarette.