Page Views: 81 Date Added: 01/17/2012 Last Updated: 01/17/2012 Expiry Date: 01/14/2022 Product/Service Details Ecosafene Products Service Co.,Ltd have rich experience to provide British BS 476 fire test to Building Material BS 476 Fire Test to Building Material – Standard BS 476: Fire Tests on Building materials and structures – Method of test for fire propagation for products BS 476 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. It is primarily intended for the assessment of the performance of internal wall and ceiling linings. BS 476 Fire Test to Building Material – Test Mehod Once a satisfactory repeatable calibration is achieved, allow the apparatus and specimen holder to cool to ambient temperature, remove a specimen from the conditioning chamber and mount it in the specimen holder. Where necessary, back it with non-combustible packing, previously conditioned, to ensure that when the holder is clamped on to the combustion chamber, the face of the test specimen is in contact with the walls of the combustion chamber. Carry out the test procedure e. Decomposition of the specimen during test may result in the formation of soot deposits on the thermocouple hot junctions, which may interfere with the accurate measurement of gas temperatures. To minimize this effect, clean the thermocouples at least 30 s before every temperature reading after the first 3 min of test, by removing them from the chimney and cleaning them with fine wire wool or a fine wire brush, then replacing them. Record the mV output from the thermocouples of the flue gases throughout the duration of the test. Note the actual mV output at the intervalsand the mV rises above the initial m V reading. Calculate Es, the output from the thermocouples for the test specimen, in mV, by the same method specified for Ec and convert it to temperature rise for the flue gases The determination of the fire propagation index requires results from three specimens, but if any specimen exhibits the behaviour described, test up to a maximum of five specimens in an attempt to obtain three valid test results BS 476 Fire Test to Building Material – Reference Standard BS 476：Fire tests on building materials and structures BS 476-3：Fire tests on building materials and structures. Classification and method of test for external fire exposure to roofs BS 476-4：Fire tests on building materials and structures - Part 4: Non-combustibility test for materials BS 476-5：Fire Tests on Building Materials and Structures Part 5: Method of Test for Ignitability BS 476-6：Fire tests on building materials and structures — Part 6: Method of test for fire propagation for products BS 476-7：Fire Tests on Building Materials and Structures Part 7: Method of Test to Determine the Classification of the Surface Spread of Flame of Products BS 476-11：Fire tests on building materials and structures — Part 11: Method for assessing the heat emission from building materials BS 476-12：Fire tests on building materials and structures — Part 12: Method of test for ignitability of products by direct flame impingement BS 476-13：Fire Tests on Building Materials and Structures Part 13: Method of Measuring the Ignitability of Products Subjected to Thermal Irradiance BS 476-15：Fire Tests on Building Materials and Structures Part 15: Method of Measuring the Rate of Heat Release of Products BS 476-20：Fire Tests on Building Materials and Structures Part 20: Method for Determination of the Fire Resistance of Elements of Construction (General Principles) BS 476-21：Fire Tests on Building Materials and Structures Part 21: Methods for Determination of the Fire Resistance of Load bearing Elements of Construction BS 476-22：Fire Tests on Building Materials and Structures Part 22: Methods for Determination of the Fire Resistance of Non- Load bearing Elements of Construction BS 476-23：Fire Tests on Building Materials and Structures Part 23: Methods for Determination of the Contribution of Components to the Fire Resistance of a Structure BS 476-24：Fire Tests on Building Materials and Structures Part 24: Method for Determination of the Fire Resistance of Ventilation Ducts

Company Information (Ecosafene Product Service Co.,Ltd)

Company Profile: Ecosafene Product Service Co.,Ltd, one of the world leading engineering consultant companies, is specialized to providing green and safety services of testing and certification for various products and services. Ecosafene advocates green and safety products.We are dedicated to investigation and customer inquiry of the standard regulations for environment friendly and green products in various countries in the word. We provide service of CE marking,Fire testing and others testing and certification. Ecosafene has professional technical and consultant teams and has close collaboration with many authoritative testing and certification institutions and national bureaus for standards.We provides efficient and authoritative technical and consultant services,including testing,certification,including testing,certification,standard interpretation,trade consulting,and training,etc.. >> More Website URL: http://www.bridgat.com/u26378