Bs 476 part 6 & 7 pdf

The british standard 476 bs476 dictates the appropriate fire tests for these elements of structurematerials and grades the level of fire resistance. Method of test for fire propagation for products licensed copy. All bsi british standards available online in electronic and print formats. Fire test center will provide british standard bs 476 7 surface flammability test to. Bs 4766 fire test to building material standard brief this part of bs 476 specifies a method of test, the result being expressed as a fire propagation index, that provides a comparative measure of the contribution to the growth. Bs476 part 6 fire propagation test to determine a surface spread of flame fire propagation index number uk class o, euroclass b. Scribd is the worlds largest social reading and publishing site. This version of the report has been produced from a. Method for classification of the surface spread of flame of products. Part 1, bs 5423, bs 5852, health and safety at work etc. The test produces a fire rating of class 1, 2, 3 or 4 depending upon how far a flame travels over a coated surface. Tests on a calcium silicate board substrate using the current national tests bs 476 parts.

However the british standard 476 dictates the appropriate fire tests for these elements of structurematerials and grades the level of fire resistance. Wira house fire west park ring road technology england services. Classification for noncombustibility rockwool asia. Under this test, there is a means of comparing the contribution of combustible building materials to the growth of a fire by providing a measure of the rate of heat evolution of the samples, exposed in a small combustion chamber. The tests that are relevant to the solid surface industry are the bs476 part 6, and bs476 part 7. 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%. Fire tests on building materials and structures method of test for fire propagation for products 2. Requirements and tests for exposed surfaces having. Oct 16, 2018 bs 476 6 is a test method of measuring the flame propagation properties of materials, primarily for fire protection performance evaluation of the walls and ceilings, measurement results are. A bs 4766 fire test to building material standard brief this part of bs 476 specifies a method of test, the result being expressed as a fire propagation index, that provides a comparative measure of the contribution to the growth of fire made by an essentially flat material, composite or assembly. Apr 26, 2017 to achieve class 1 bs 476 part 7 classification, the spread of flame must not be more than 165mm in 10 minutes. This part of bs 476 specifies a method of test for measuring the. Scope of test the tests are designed to enable measurement of.

Fire performance of materials in the united kingdom uk has traditionally been determined by. Bs4766 fire propagation apparatus concept equipment. Part 6 refers to a standard fire test for propagation of products. Bs 476 is the british standard produced by bsi group and is the common standard adhered to in the gcc region, united kingdom and europe. Achieve an index of i less than 12 and i1 less than 6 from bs476 pt 6 fire. Fire classification in accordance with british standards. This measures the amount of heat released when the product under test is burned. British standard bs476 paints and varnishes fire retardant. A bs 4767 fire test to building material standard brief this part of bs 476 specifies a method of test for measuring the lateral spread of flame along the surface of a specimen of a product orientated in the vertical position under opposed flow conditions, and a classification system based on the rate and extent of the spread of flame. Mar 02, 2012 fire tests on building materials and structures part 7. The test was performed in accordance with the test procedures specified in bs 476. Method of test for fire propagation for products date of test. The bs 467 part 6 test indicates the performance of a material in the early stages of a fire and the test result is a fire propagation index which is dependent on the.

Prior to testing the sample the calibration of the equipment was determined to ensure. The test was carried out in accordance with bs 476. A bs 476 6 fire test to building material standard brief this part of bs 476 specifies a method of test, the result being expressed as a fire propagation index, that provides a comparative measure of the contribution to the growth of fire made by an essentially flat material, composite or assembly. This report in issued in accordance with our terms and conditions, a copy of which is available on request. Classification and method of test for external fire exposure to roofs. Fire tests on building materials and structures part 6. Akin koksal, bechtel ltd, 28 february 2005, uncontrolled copy, c bsi udc614. We are often asked what is the difference between the new en. The impact of european fire test and classification standards on. The bsi group produces british standards under the authority of the royal charter in the united kingdom, which states that one of bsis objectives is to create standards of quality for goods and services. In such cases the product shall be assessed against the requirements. Bs4766 fire propagation index tester for building materials.

Bs 476 part 7 specifies a method of test for measuring the lateral spread of flame along the surface of a specimen of a product orientated in the vertical position under opposed flow conditions, and a classification system based on the rate and extent of. The sponsor sampled the material and the specimens were cut from the sample to the dimensions set out in. The test was performed in accordance with the procedure specified in bs 476. This method of test, the result being expressed as a fire propagation index, provides a comparative measure of the contribution to the growth of fire made by an essentially flat material. Class 1 is a classification defined by bs476 pt 7 surface spread of.