Acoustics and vibration. Laboratory measurement of vibro-acoustic transfer properties of resilient elements - Dynamic stiffness of elements other than resilient supports for translatory motion Ingestion-build-95349 PD 7974-4: Detection of fire

PD 7974-4: Detection of fire and activation of fire suppression systems

ISO/IEC 27013 can strengthen the understanding by service management and information security personnel of each other’s viewpoints

technology requirements and the auditability of electronic document management systems (EDMS)

Using BS EN IEC 61000‑6‑2 you can understand electrical and electronic equipment intended for use in industrial locations

for the wellbeing of users and for a pleasant built environment

Acoustics and vibration. Laboratory measurement of vibro-acoustic transfer properties of resilient elements - Dynamic stiffness of elements other than resilient supports for translatory motion Ingestion-build-95349 PD 7974-4: Detection of fire1 Scope This part of ISO 10846 specifies two methods for determining the dynamic transfer stiffness for translations of resilient elements other than resilient supports. Examples are resilient bellows, shaft couplings, power supply cables, hoses and pipe hangers (see Figure 1). Elements filled with liquids, such as oil or water, are excluded. NOTE 1 Pipe hangers are extensionally deflected, as opposed to elastic supports which are compressed.