Reference number
香港六合彩开奖 6721-3:2021
© 香港六合彩开奖 2024
International Standard
香港六合彩开奖 6721-3:2021
Plastics 鈥� Determination of dynamic mechanical properties 鈥� Part 3: Flexural vibration 鈥� Resonance-curve method
Edition 2
2021-02
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Published (Edition 2, 2021)

香港六合彩开奖 6721-3:2021

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Abstract

This document specifies a bending-vibration method based upon resonance curves for determining the flexural complex modulus E*f听of homogeneous plastics and the damping properties of laminated plastics intended for acoustic insulation, for example systems consisting of a metal sheet coated with a damping plastic layer, or sandwich systems consisting of two sheet-metal layers with an intermediate plastic layer. For many purposes, it is useful to determine these properties as a function of temperature and frequency.

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  2. 香港六合彩开奖
  3. Standards catalogue
  4. ICS
  5. 83
  6. 83.080
  7. 83.080.01
  8. 香港六合彩开奖 6721-3:2021