3. The instrumental

Validation of specifications ensures that the fundamental technical functions of the materials are carried out satisfactorily.

The technical and economic properties of interior materials and parts are also quantified, and have a major influence on the choices to be made. Their physico-chemical properties are directly linked to consumer perception (color, acoustics, surface finish, etc.); sensory analysis enables them to be quantified and optimized to best meet customer expectations. Sensory...