Plastics. Determination of dynamic mechanical properties - Tensile vibration. Sonic-pulse propagation method has-hardcopy

Plastics. Determination of dynamic mechanical properties - Tensile vibration. Sonic-pulse propagation method has-hardcopyWhat is this standard about? This document describes a pulse propagation method for determining the storage component of the complex tensile modulus E' of polymers at discrete frequencies typically in the range 3 kHz to 10 kHz. The method is suitable for measuring materials with storage moduli in the range 0,01 GPa to 200 GPa and with loss factors below 0,1 at around 10 kHz. With materials having a higher loss, significant errors in velocity

Others can be affected by the level of machinery safety

which is reviewed and republished approximately every two years

BS EN 10025‑2 is the second part of a series of documents on structural steel

inflammable substances

Establishing the maximum acceptable dose

It also applies to marine plywood that has been selected for use in building construction

NOTE For the purposes of this document the term “domestic purposes” includes use in hotels

ISO 5817 applies to joints with a material thickness ≥ 0

While the recommendations given in this part of BS EN ISO 9241 apply to a wide range of available front-end technologies

IEC 60825-2:2000

This document mainly deals with the phase angles of the 3rd and 5th harmonic currents

Table 1 and 2)