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Acoustics and vibration. Laboratory measurement of vibro-acoustic transfer properties of resilient elements - Direct method for determination of the dynamic stiffness of resilient supports for translatory motion Ingestion-build-146508 BS EN 2809 specifies the1 Scope This part of ISO 10846 specifies a method for determining the dynamic transfer stiffness for translations of resilient supports, under specified preload. The method concerns the laboratory measurement of vibrations on the input side and blocking output forces and is called the direct method. The method is applicable to test elements with parallel flanges (see Figure 1). Resilient elements, which are the subject of this part of ISO 10846, are