BS EN 14187-7:2019 pdf free.Cold applied joint sealants – Test methods,Determination of the resistance to flame.
BS EN 14187-7 This document specifies a test method for determination of the resistance to flame of cold applied joint sealants for use in joints in roads, air fields and other trafficked areas.The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 6927, Buildings and civil engineering works一Sealants 一Vocabulary (ISO 6927) EN ISO 8340, Building construction一Sealants – Determination of tensile properties at maintained extension [ISO 8340].4 Principle  The resistance to flame of cold applied joint sealants is determined by subjecting it to the flame for a specified time. 5 Apparatus and materials 5.1 High temperature laboratory burner, rated to supply up to 3 000 W and capable of burning approximately 200 g of propane per hour at operating capacity. 5.2 Draught shield consisting of an open ended cylinder of light gauge metal with a diameter of (125土3)mmandaheightof(300土5)mm. 5.3  Steel specimen support, made from two 150 mm long rods and two 50 mm long rods, all of 3 mm nominal diameter, to form a support with a rectangular centre opening of 40 mm x 50 mm as shown in Figure 1. 5.4 Temperature measuring device, capable of measuring of up to 300°C with an accuracy of士5°C. 6 Preparation of test specimens  One test specimen made and cured in accordance with EN ISO 8340 method B shall be used.7.1 Assemble the apparatus using a tripod as a support for the cylindrical draught shield(see Figure 1). 7.2 Centre the high temperature burner (5.1) under the draught shield (5.2) with the top in the same place as the bottom of the draught shield. 7.3 Centre the specimen support on the top of the draught shield (5.2) with the temperature measuring device (5.4) in a horizontal position laid on it with the sensor at the centre. BS EN 14187-7 pdf download.