Methods for determination of the contribution of components to the fire resistance of a structure british standard detailed test requirements for the contribution made by suspended ceilings to beams and by intumescent seals to doorsets and shutter assemblies. Scribd is the worlds largest social reading and publishing site. Bs 47620 fire tests on building materials and structures. The sample exposed to high temperature and pressure conditions, the test samples within the specified time bearing weight, integrity and insulation. Some additional guidelines were adopted from the european document referenced bs en 664, relating to the testing of these types of sealing systems. A british standard does not purport to include all the necessary provisions of a contract. Test methods and criteria for the fire resistance of elements of building construction amd 1873. Product standards flameshield fireduct is fully compliant with bs 476 part 24 flameshield products have been fully tested in accordance with bs 476 part 24. For the fire resistance of elements of building construction from sai global. Bs 476 20 fire tests on building materials and structures part 20. The need for a glossary covering terms used in bs 476 has been established and this will be published separately as a british standard glossary of terms and definitions associated with fire.
Introduction first revision of bs 476 part 1 published in 1947 as bs 476 part 8. Fire resistance test in accordance with bs476 part 22 1987 on a single. The test produces a fire rating of class 1, 2, 3 or 4 depending upon how far a flame travels over a coated surface. The following is reproduced from clause 4 of bs 476.
All bsi british standards available online in electronic and print formats. Page 8 of 9 table 2 laboratory record sheet fire propagation test bs 476. To determine the performance of a product when it is subjected to the conditions of the test specified in bs 476. The method for rigid or semirigid materials or composites. This part of bs 4763 has been prepared by subcommittee fsh228. Fire tests on building materials and structurespart 5. Fire resistance test utilising the general principles of bs 476.
This version of the report has been produced from a pdf format electronic file that has been provided by. It provides data suitable for comparing the performances of. We manufacture flameshield fireduct from the highest quality, galvanised sheet steel and is produced on specialist manufacturing systems. The purpose of bs476 part 24 1987 and iso6944 1985 is to. Method for determination of the fire resistance of elements of construction general principles. In order to read a secure pdf, you will need to install the fileopen plugin on your computer. Flameshield fireduct, fire rated ductwork, bs 476 part 24. Bs 47620 fire resistance of load bearing elementsbritish standard preface the objective of determining fire resistance, as described in the part and the associated parts of bs 476, is to assess the behaviour of a specimen of an element of building construction when subjected to defined heating and pressure conditions. Test methods and criteria for the fire resistance of elements of building construction amd 1873 amd 3816 amd 4822 no longer current but cited in building regulations guidance publication year 1972 document status. This standard has been superseded by the current bs en 661, bs en 668 and bs en 669, but it has been retained based on a legitimate need for the standards within noneu markets.
Classification and method of test for external fire exposure to roofs. However, the regulations require that large cavity barriers should be tested to bs 476 as either vertical or horizontal separating elements, whichever is appropriate to their use. However, the latter will still be made available on request since it is referred to in building regulations and other legislative documents. Part 20 with respect to the requirements of elevated temperature and air leakage of the msfdmfd. Form in which the specimens were tested the specimens were tested in the form of a. Fire tests on building materials and structures part 8. Test methods and criteria for the fire resistance of elements of building construction amd 1873 amd 3816 amd 4822 no longer current but cited in building regulations guidance publication. Form in which the specimens were tested the specimens were tested in the form of a composite. Test methods and criteria for the fire resistance of elements of building construction. However the british standard 476 dictates the appropriate fire tests for these elements of structurematerials and grades the level of fire resistance. This report should be read in conjunction with the above mentioned documents.
The fileopen plugin works with adobe reader and other viewers. S to indicate whether the test results apply to a flat horizontal or an inclined roof system, respectively 4. Bs 47620 fire tests on building materials and structurespart 20. Fire resistance tests for elements of building construction. The test was performed in accordance with the procedure specified in bs 476. Bs476 part 21 pdf portable document format e books.
Prior to the tests, all of the specimens were conditioned to constant mass at a temperature of 23 2c and a relative humidity of 50 5%. Method for determination of the fire resistance of elements of construction general principles standard by bsi group, 05291987. Method for determination of the fire resistance of elements of construction general principles standard. This part, together with bs 476 20, 21, 23 and 24, supersedes bs 476 8. A bs 47620 fire resistance test to building material standard brief the objective of determining fire resistance, as described in the part and the associated parts of bs 476, is to assess the behaviour of a specimen of an element of building construction when subjected to defined heating and pressure conditions. Flameshield fireduct we manufacture and supply flameshield fireduct bs flameshield fireduct bs was the first noncoated ductwork system to achieve full compliance to all parts of the bs 476 part 24.
S to indicate whether the test results apply to a flat horizontal or an inclined roof system, respectively. Drm is included at the request of the publisher, as it helps them protect their by restricting file sharing. Msfdmfd shall be tested in accordance with the procedure specified in bs 476. Bs 476 22 has been prepared under the direction of the fire standards committee, and describes the procedures for determining the fire resistance of nonloadbearing elements of building construction. Fire resistance test utilising the general principles of. Roof systems shall be designated by the letters ext. The dfr2 joint products are ul listed file no r26111, for use in joint system nos. The basic standard used to investigate these types of joint systems is. This standard has been superseded by the current bs en 661, bs en 66 8 and bs en 669, but it has been retained based on a legitimate need for the standards within noneu markets. This part should be read in conjunction with bs 47620 which. Fire resistance test utilising the general principles of bs. At % height of the door leaf, at midwidth between the edge of the.
Method for determination of the fire resistance of elements of construction general principles the sample exposed to high temperature and pressure conditions, the test samples within the specified time bearing weight, integrity and insulation. The impact of european fire test and classification standards on. This part should be read in conjunction with bs 476 20 which describes the general principles for these methods. Bs 47622 has been prepared under the direction of the fire standards committee, and describes the procedures for determining the fire resistance of nonloadbearing elements of building construction. Reaction to fire tests ignitability of building products. To achieve class 0 a product must achieve class 1 in the part 7 test and also pass the part 6 test. S to indicate whether the test results apply to a flat horizontal or. Furnace the furnace was controlled so that its mean temperature complied with the requirements of bs 476. This version of the report has been produced from a. Flameshield fireduct fire rated ductwork bs 476 part 24.
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