EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of IEC EN 60695-11-40 test. IEC EN 60695-11-40 provides a general characterization of small-scale test flames and related validation tests based on copper block calorimetry. Guidance is offered for the selection of critical parameters in confirmatory test designs.
One of the responsibilities of a technical committee is to leverage key security publications in the preparation of their publications, where applicable. The requirements, test methods or test conditions of this essential safety publication will not apply unless specifically referred to or included in the relevant publications.
Standard flames are specified for various small-scale fire tests. Apparatus design and test parameters are specified to ensure consistent and defined flames. Burner designs, material properties, and fuel and air properties are typically required parameters. Experience has shown that the quality of the flames and the resulting test measurements are significantly affected by subtle changes in equipment and testing technique. Simple checks of flame characteristics, such as flame color and dimensions or the melting properties of silver wire, are also sometimes specified or recommended.
The need for relatively simple control over the strength of a flame has led to the introduction of confirmatory tests based on copper block calorimetry. This document aims to provide information and guidance on small scale standard flames and various copper block verification tests.
Flames consist of gaseous mixtures of oxidizer (typically oxygen or air mixture) and reducing or fuel (typically fuel gas or steam) that react chemically exothermically. For standardized test flames, the appropriate equipment supplying flammable materials (i.e. fuel gas) ensures a continuous flow of gaseous reactants necessary to sustain the desired standardized flame.
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