Објављен
This document specifies a bending-vibration method based upon resonance curves for determining the flexural complex modulus E*f 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.
ОБЈАВЉЕН
ISO 6721-3:2021
60.60
Стандард објављен
19. 2. 2021.
Пластичне масе – Одређивање динамичко-механичких својстава – Део 3: Савојно вибрирање – Метода резонантне криве
60.60 Стандард објављен