BS EN 1366-4:2006 pdf download – Fire resistance tests for service installations — Part 4: Linear joint seals
7.5 Induced movement
The various possibilities to impose mechanically induced movement, including standard conditions, are described in Annex B.
The test construction shall be conditioned in accordance with EN 1363-1.
9 Application of instrumentation
The control, monitoring and recording equipment shall be in accordance with EN 1363-1.
9.2.1 Furnace thermocouples
Plate thermometers shall be provided in accordance with EN 1363-1. The plate thermometer shall be located in a plane 100 mm from the exposed face of the separating element. At least one thermometer shall be provided for every 1,5 m² of the heated area of the test construction, subject to a minimum number of four thermometers for each test construction. These thermometers shall be symmetrically distributed with respect to the heated area of the test construction. For vertical test constructions, the plate thermometers shall be oriented so that side ‘A’ faces the walls of the furnace opposite the test construction being evaluated. For horizontally oriented test constructions, side ‘A’ of the plate thermometers positioned below the test construction being evaluated shall face the floor of the furnace
. 9.2.2 Unexposed face thermocouples Surface temperature measurements and the thermocouples shall be in accordance with EN 1363-1. The test specimen thermocouples shall be at the centre line of the linear joint seal. Figures 5 to 11 and 13 show examples of thermocouple application. In the case of non-planar surfaces the disc and the pad shall be deformed to follow the surface profile. In the case of small sections it is permissible to reduce the size of the pad to a minimum dimension of 12 mm. If a linear joint seal is recessed from the unexposed face of the supporting construction and the linear joint seal is less than 12 mm wide, thermocouples shall be installed on the supporting construction at a distance of not more than 15 mm from the joint seal (see Figure 13). If a potential weak point can be identified, additional fixed thermocouples shall be attached to this point, e.g. over a splice. Where it is impractical to attach thermocouples because of the nature of the surface of the linear joint seal (which may change significantly during the test period), careful use may be made of a roving thermocouple.
9.2.3 Roving thermocouple The information obtained on unexposed face surface temperatures shall be supplemented by additional data derived from measurements obtained using a roving thermocouple applied to identify any local “hot spots” in accordance with EN 1363-1. If it is determined that the roving thermocouple may damage the test specimen, it shall not be used and the reason noted in the test report.
9.3 Deformation and deflection Deformations of the supporting construction shall be measured and recorded. Instrumentation for the deflection measurement of the supporting construction shall be located so as to provide data in terms of the amount and rate of deflection during and, where appropriate, after the fire test.
9.4 Integrity measurement The integrity of the specimen shall be assessed as described in EN 1363-1, except that gap gauges shall not be used.
10 Test procedure
10.1 General Tests shall be carried out according to the procedures given in EN 1363-1. Tests can be carried out either with or without movement. In the case of tests with movement it can be in the plane of the supporting construction (lateral) or normal to it (shear), or it can be any other movement appropriate to the intended application. The movement can be imposed prior to test or during the test. Depending on the required field of application (see Clause 13) tests shall be carried out in accordance with the appropriate subclause of Annex A or the appropriate subclause of Annex B.
NOTE The test should be run until failure of all the linear joint seals within a test construction. 10.2 Installation of test construction When the conditioning procedures are satisfied, the test construction shall be mounted to form the vertical or horizontal face of the test furnace as appropriate. Measuring equipment and ancillary apparatus shall be provided in accordance with this European Standard.