Appendix 1 – Fire Test Procedures – Full–Scale
Room for Surface Materials on Bulkheads, Wall and Ceiling Linings,
Including Their Supporting Structure, of High-Speed Craft
Reference document: ISO 9705, Fire tests – Full-scale
room test for surface products.
1 Scope
1.1 This test procedure specifies a test method
that simulates a fire that under well-ventilated conditions starts
in a corner of a small room with a single open doorway.
1.2 The method is intended to evaluate the contribution
to fire growth provided by a surface product using a specified ignition
source.
1.3 The method is especially suitable for products
that for some reason cannot be tested in a small laboratory scale,
for example thermoplastic materials, the effect of an insulating substrate,
joints, surfaces with great irregularity.
1.4 The method is not intended to evaluate the
fire resistance of a product.
1.5 A test performed in accordance with the method
specified in this appendix provides data for the early stages of a
fire from ignition up to flashover.
2 Normative Reference
The following normative documents contain provisions that
when referenced in this text, constitute provisions of this paragraph:
ISO 9705, Fire tests – Full-scale room test for surface
products.
ISO 13943, Fire safety – Vocabulary.
3 Definitions
For the purposes of this appendix, the definitions given
in standard IS0 13943 and the following definitions apply.
3.1
Assembly is a fabrication of
materials and/or composites, for example, sandwich panels.
3.2
Composite is a combination of
materials which are generally recognized in building construction
as discrete entities, for example, coated or laminated materials.
3.3
Exposed surface is that surface
of the product subjected to the heating conditions of the test.
3.4
Material is a basic single substance
or uniformly dispersed mixture, for example, metal, stone, timber,
concrete, mineral fibre, polymers.
3.5
Product is a material, composite
or assembly about which information is required.
3.6
Specimen is a representative
piece of the product which is to be tested together with any substrate
or treatment.
3.7
Surface product is any part of
a building that constitutes an exposed surface on the interior walls
and/or the ceiling such as panels, tiles, boards, wallpapers, sprayed
or brushed coatings.
4 Principle
4.1 The potential for fire spread to other objects
in the room, remote from the ignition source, is evaluated by measurements
of the total heat flux incident on a heat flux meter located on the
centre of the floor.
4.2 The potential for fire spread to objects outside
the room of origin is evaluated by the measurement of the total rate
of heat release of the fire.
4.3 An indication of the toxic hazard is provided
by the measurement of certain toxic gases.
4.4 The hazard of reduced visibility is estimated
by the measurement of production of light-obscuring smoke.
4.5 The fire growth is visually graphic and/or
video recording.
5 Test Apparatus
5.1 General
The test apparatus including test room, ignition source,
heat flux instrumentation in the fire room, hood and exhaust duct,
instrumentation in the exhaust duct, gas sampling and analysis system,
optical smoke measurement system and specimen mounting system and
other necessary peripherals shall be in accordance with standard ISO
9705. Calibration of the test apparatus shall be conducted in accordance
with standard ISO 9705.
5.2 Ignition source
The standard ignition source is according to annex A of
standard ISO 9705, i.e. 100 kW heat output for 10 min and thereafter
300 kW heat output for another 10 min. The total testing time shall
be 20 min.
5.3 Specimen mounting
Standard specimen configuration is according to annex G
to standard ISO 9705, i.e. the product is mounted both on the walls
and ceiling of the test room. The product shall be tested complying
to end-use conditions, including any surface finish materials or other
surface treatments.
6 Preparation of Test Specimens
6.1 The product to be tested shall, as far as
possible, be mounted in the same way as in practical use.
6.2 In cases where the product to be tested is
in board form, the normal width, length and thickness of the boards
shall be used as far as possible.
6.3 The product shall be attached either to a
substrate or directly to the interior of the fire test room. The mounting
technique (for example, nailing, gluing, using a support system) shall,
as far as possible, conform to that used for the product. The mounting
technique shall be clearly stated in the report, particularly if the
mounting technique used improves the physical behaviour of the specimen
during the test.
6.4 Thin surface materials, thermoplastic products
that melt, paints and varnishes shall, depending on their end use,
be applied to one of the following substrates:
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.1 non-combustible fibre-reinforced silicate board
having a dry density of 680 ± 50 kg/m3;
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.2 non-combustible board having a dry density
of 1,650 ± 150 kg/m3;
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.3 chipboard (particle board) having a density
of 680 ± 50 kg/m3 after conditioning in an atmosphere
of 50 ± 5% relative humidity at a temperature of 23 ±
2°C;
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.4 gypsum board having a density of 725 ±
50 kg/m3 after conditioning in an atmosphere of 50 ±
5% relative humidity at a temperature of 23 ± 2°C; and
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.5 the actual substrate if its thermal properties
differ significantly from those of substrates described in subparagraphs
.1 to .4, for example, steel, mineral wool.
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Note A suitable thickness for substrates described
in subparagraphs .1 to .4 is 9 mm to 13 mm.
6.5 Paints and varnishes shall be applied to one
of the substrates listed in paragraph 6.4 at the application rate
specified by the client.
6.6 Unless non-hygroscopic, specimens shall be
conditioned to equilibrium in an atmosphere of 50 ± 5% relative
humidity at a temperature of 23 ± 2°C. Equilibrium shall
be deemed to be reached when a representative piece of the specimen
has achieved constant mass.
-
Note 1: For wood-based products and products where
vaporization of solvents can occur, a conditioning time of at least
four weeks can be required.
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Note 2: Constant mass is considered to be reached
when two successive weighing operations, carried out at an interval
of 24 h, do not differ by more than 0.1% of the mass of the test piece
or 0.1 g, whichever is the greater.
7 Testing
7.1 Initial conditions
7.1.1 The temperature in the fire test room and
the surrounding area from the start of the installation of specimens
until the start of the test shall be 20 ± 10°C.
7.1.2 The horizontal wind speed measured at a
horizontal distance of 1 m from the centre of the doorway shall not
exceed 0.5 m/s.
7.1.3 The burner shall be in contact with the
corner wall. The surface area of the burner opening shall be clean.
7.1.4 The product shall be photographed or video-filmed
before testing.
7.2 Procedure
7.2.1 Start all recording and measuring devices
and record data for at least 2 min prior to the burner being ignited.
7.2.2 Adjust the burner to the output level given
in annex A of standard ISO 9705, within 10 s of ignition of the burner.
Continuously adjust the exhaust capacity so that all of the combustion
products are collected.
7.2.3 A photographic and/or video recording of
the test shall be made. A clock shall appear in all photographic records,
giving time to the nearest 1 s.
7.2.4 During the test, record the following observations,
including the time when they occur:
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.1 ignition of the ceiling;
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.2 flame spread on wall and ceiling surfaces;
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.3 change of the heat output from the burner;
and
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.4 flames emerging through the doorway.
7.2.5 End the test if flashover occurs or after
20 min, whichever occurs first.
Note Safety considerations can dictate an earlier termination.
7.2.6 Note the extent of damage of the product
after the test.
7.2.7 Record any other unusual behaviour.
8 Analysis and Calculation of the Test
Results
Analysis and calculation shall be conducted in accordance
with annex F to standard ISO 9705, and the following methods:
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.1 the maximum values of smoke production rate
at the start and the end of the test shall be calculated as follows:
for the first 30 s of testing, use also the values prior to ignition
of the ignition source, i.e. zero rate of smoke production, when calculating
average. For the last 30 s of testing, use the measured value at 20
min, assign that to another 30 s up to 20 min and 30 s and calculate
the average;
-
.2 the maximum heat release rate (HRR) shall be
calculated at the start and the end of the test using the same principles
as for averaging the smoke production rate; and
-
.3 the time averages of smoke production rate
and HRR shall be calculated using actual measured values that are
not already averaged as described above.
9 Test Report
The test report shall include the following information
as a minimum. A clear distinction shall be made between the data provided
by the sponsor and data determined by the test:
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.1 reference that the test was carried out in
accordance with appendix 1 of part 10 of the 2010 FTP Code (see also
subparagraph .2);
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.2 any deviations from the test method;
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.3 name and address of the testing laboratory;
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.4 date and identification number of the report;
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.5 name and address of the sponsor;
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.6 name and address of the manufacturer/supplier,
if known;
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.7 type of the material, i.e. surface material
on bulkheads, wall or ceiling linings, and description whether and
how it includes supporting structure;
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.8 name and/or identification of the product tested;
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.9 description of the sampling procedure, where
relevant;
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.10 description of the product tested including
density and/or mass per unit area, thickness and dimensions, colour,
quantity and number of any coating, together with details of the construction
of the product;
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.11 description of the specimen including density
and/or mass per unit area, thickness and dimensions, colour, quantity
and number of any coating, orientations tested and face subject to
the test, and construction;
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.12 date of specimen arrival;
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.13 details of specimen conditioning;
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.14 date of test;
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.15 test results (see annex F to standard ISO
9705):
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.1 time/heat flux incident on the meter at the
centre of the floor;
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.2 time/volume flow in the exhaust duct;
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.3 time/rate of heat release; and if the burner
is included, time/heat release from the burner;:
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.4 time/production of carbon monoxide at reference
temperature and pressure;
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.5 time/production of carbon dioxide at reference
temperature and pressure;
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.6 time/production of light-obscuring smoke at
actual duct flow temperature;
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.7 description of the fire development (photographs);
and
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.8 calibration results according to paragraph
10.2 of standard ISO 9705;
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.16 classification of the material; and
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.17 the statement:
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"The test results relate to the behaviour of the test specimens
of a product under the particular conditions of the test; they are
not intended to be the sole criterion for assessing the potential
fire hazard of the product in use.".
10 Other References
The following parts of standard ISO 9705 shall also be referred
to:
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.1 annex A – Recommended ignition sources;
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.2 annex B – Alternative ignition sources;
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.3 annex C – Instrumentation of test room;
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.4 annex D – Design of exhaust system;
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.5 annex E – Instrumentation in exhaust
duct;
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.6 annex F – Calculation;
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.7 annex G – Specimen configurations; and
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.8 annex H – Bibliography.
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