BS 06807:2006 pdf download – Methods of test for assessment of the ignitability of mattresses, upholstered divans and upholstered bed bases with flaming types of primary and secondary sources of ignition
f) for ignition sources 6 and 7: any test specimen that continues to flame for more than 13 min after ignition of the crib;
NOTE The times quoted in items e) and f) are essentially 2 min greater than the upper 95% probable extinction times of wood cribs determined by interlaboratory testing.
g) for all sources: any test specimen from which debris causes an isolated floor fire not meeting the criteria of items d), e) or f). 5 Principle A test specimen is subjected to a flaming ignition source placed on top of and below the test specimen.
NOTE 1 The range of intensity of the primary sources has been selected to imitate that of actual sources which might be encountered in various end use environments, while the range of intensity of the secondary sources reproduces the effects of varying amounts and types of bed covers.
NOTE 2 Ignition sources have been selected to supplement those in BS EN 597-1 and BS EN 597-2.
NOTE 3 The tests can be used to assess the ignitability at any level but it is essential that the cigarette ignition specified in BS EN 597-1 is always included. 6 Health and safety of operators WARNING.
This British Standard calls for the use of substances and/or procedures that can be injurious to health if adequate precautions are not taken. It refers only to technical suitability and does not absolve the user from legal obligations relating to health and safety at any stage.
NOTE 1 Suitable precautions might include the provision of breathing apparatus and protective clothing.
NOTE 2 Attention is drawn to the Health and Safety at Work etc. Act 1974 [5] in respect of safety precautions.
6.1 Enclosure The tests shall be conducted in a suitable fume cupboard or purpose-built room so that individuals are not exposed to fumes (see 7.4).
6.2 Extinguishers Readily accessible means of extinguishing the test specimens shall be provided.
NOTE 1 For preference, water should be provided for smouldering fires and a fire extinguisher for flaming fires. Carbon dioxide extinguishers are not suitable for extinguishing smouldering test specimens.
NOTE 2 Extinction of test specimens can be difficult and care should be taken that they are only disposed of when completely inert. It might be necessary to immerse smouldering specimens in water, or place them in a sealed non-combustible enclosure. To ensure complete safety other suitable steps might have to be taken.
7 Apparatus 7.1 Test rig consisting of a platform of expanded steel or open mesh supported at least 75 mm above a solid surface. If extendable legs are used, the platform shall be (380 ± 50) mm above the solid surface.
NOTE 1 The use of extendable legs is recommended where testing with ignition sources below the test specimen is specified. The test rig shall be no smaller than the corresponding dimensions of the test specimen minus 150 mm but may be any suitable amount larger than the test specimen.
NOTE 2 A suitable test rig using extendable legs is illustrated in Figure 2.
NOTE 3 When testing a full size mattress it might be necessary to use an actual upholstered divan or upholstered bed base for ignition from below.
NOTE 4 When testing an upholstered divan or upholstered bed base it might not be necessary to use the test rig. For ignition from below, a rectangular mesh of size (100 ± 10) mm × (50 ± 5) mm as shown in Figure 2, and the angle iron dimensions shown in Figure 2, shall be used.
NOTE 5 The size of the mesh and the angle iron dimensions are not critical for top ignition. For the tests, the rig shall be sited within the enclosure (see 7.4) and the testing shall be performed in a substantially draught-free environment permitting an adequate supply of air.