ISO 18437-2:2005 defines a resonance method for determining from laboratory measurements the dynamic mechanical properties of the resilient materials used in vibration isolators. It is applicable to shock and vibration systems operating from a fraction of a hertz to about 20 kHz.ISO 18437-2:2005 is applicable to resilient materials that are used in vibration isolators in order to reduce-- transmissions of unwanted vibrations from machines, structures or vehicles that radiate sound (fluid-borne, airborne, structure-borne, or other), and-- the transmission of low-frequency vibrations that act upon humans or cause damage to structures or sensitive equipment wh