Determination of dynamic mechanical properties

BS ISO 6721-6:2019 pdf free

BS ISO 6721-6:2019 pdf free.Plastics - Determination of dynamic mechanical properties. Various shear test specimen assemblies can be used. A suitable design is shown in Figure 2. Here the metal end-pieces P are cylindrical, but any cross-sectional shape is suitable as long as the end-pieces can be clamped rigidly in the shear load stage. The dimensions of the end-pieces and...

06-03

Download

BS ISO 6721-4:2019 pdf free

BS ISO 6721-4:2019 pdf free.Plastics一Determination of dynamic mechanical properties. Test specimens of rectangular cross-section are recommended to facilitate load introduction. The width and thickness shall not vary along the specimen length by more than 3 % of the mean value. It is also recommended that the length of the specimen between the clamps be longer than six times the specimen...

06-01

Download

BS ISO 6721-9:2019 pdf free

BS ISO 6721-9:2019 pdf free.Plastics一Determination of dynamic mechanical properties. Apply a sonic pulse to the specimen, and measure the arrival time tA (s) to an accuracy of士0,5 us.Repeat the measurements described in 9.3.1 and 9.3.2 for the same specimen at least three different separation distances between the transducers. In order to get good accuracy, the values of the distance should...

05-22

Download

ISO 6721-6:2019 pdf free

ISO 6721-6:2019 pdf free.Plastics — Determination of dynamic mechanical properties — Part 6: Shear vibration — Non-resonance method. ISO 6721-6 describes a forced, non-resonance method for determining the components of the shear complex modulus G* of polymers at frequencies typically in the range 0,01 Hz to 100 Hz. Higher-frequency measurements can be made, but significant errors in the dynamic properties...

04-20

Download