This document specifies a test method for determining the mechanical viscoelastic properties of interlayer materials. The interlayers under examination are those used in the production of laminated glass or laminated safety glass. The shear characteristics of interlayers are needed to design laminated glass in accordance with EN 16612:2019 and EN 19100 (all parts).

Parameters of the Prony series, widely used in numerical simulation, can be derived from the measurements in Annex C.