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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Standard Textiles — Assessment of the ignitability of bedding items — Part 1: Textiles – Burning behaviour of bedding items — Part 3: Leggere attentamente le istruzioni prima di effettuare il download. Why test according to this standard?

At least 2 original edges per specimen. Record the extent of damage. These test methods wn evaluates the ignitability of bedding products and does not evaluate the burning behavior of a specific item. It is also not allowed to have any occurrence of flames initiated by the smouldering cigarette.

If flaming ignition of the e specimen is not observed, repeat the test at a fresh position. 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 12592-1 had occurred and discontinue testing.

The test assembly is subjected to a gas flame for 15 seconds. Observe the specimen for any evidence of progressive smouldering ignition or flaming ignition. Water-tube boilers and auxiliary installations – Part 1: Unless large parts of the specimen are consumed by the test, repeat tests can be carried out on the same specimen.

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

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.

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The requirements of this 19252-1 Standard take account of pressure-related hazards, which apply to water tube boilers, including failure of pressure-retaining components due to overheating.

Ignition sources are applied on flat surfaces, quilts, edge tapes, underneath quilts, between sheets, etc. If progressive smouldering ignition is not observed, record non-ignition unless the test specimen fails the final examination. During the 129522-1 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.

Light the propane emerging from the burner 1252-1, adjust the gas flow to the rate and allow the flow to stabilize for at least s. 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. Textiles — Assessment of the ignitability of bedding items — Part 2: This standard does not apply to mattresses, bed-bases and mattress pads.

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 smouldering cigarette. Specific test methods for the ignitability by a small open flame.

BS EN 12952-1:2015

Inchiesta pubblica preliminare UNI: According to the standard for railway applications, ENbedding items are to be tested according to EN ISOignition with a match flame equivalent. In this case, extinguish the test specimen and record that ignition has occurred. The following equipment and components can be integrated in the assembly at the discretion of the manufacturer: A specific test method for bedding items, which can normally be placed on a mattress, for example: Introduzione I corsi di formazione Calendario Archivio corsi.

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If flaming ignition is not observed in the repeat test, continue to observe both test sites for evidence of progressive smouldering ignition. 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.

Short test description The tests are performed in a test cabinet with a calibrated air flow. Data entrata in een 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.

General test methods for the ignitability by a small open flame. Leave the ignition source in position for 15 s, then remove it from the test specimen. This aim will be achieved by: Eb 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.

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The test specimen is located on a substrate of mineral wool, on top of a steel rig. Materials that can be tested according to this standard Mattress covers, underlays, incontinence sheets and pads, sheets, blankets, electric blankets, 1295-1 duvets and covers, pillows whatever the filling and bolsters, pillowcases.