Gummi- og plastindustri

Emner: Lim
Komité: CEN/TC 193 (Adhesives)
Opprinnelse:
Sluttdato: 22. aug 2019
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This document specifies a measuring method for the characterization of rheological properties of structural adhesives using oscillatory rheometry. The advantage of the method in comparison to rotational viscometry measurements lies in the separation of elastic and viscous material properties, thus allowing to define the viscoelastic properties. This enables more precise information concerning the flow behaviour of the materials, thereby resulting in a better understanding of their processing properties. The method described is particularly suitable for filled and paste-like adhesives. These are frequently processed using automated pump and application systems in industrial applications and shall be set precisely considering their rheological properties. As the rheological behaviour of uncured adhesives is mostly independent of their properties in the cured state, the standard can also serve for the examination of non-structural adhesives.
Komité: CEN/TC 249 (Plastics)
Opprinnelse:
Sluttdato: 22. aug 2019
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This document defines quality and test methodologies for recycled PVC to be used in PVC window profile systems. It contains a description of the controlled loop as such, the definition of those material transformation steps which are relevant for product quality, in particular recycling input and output and profile manufacturing input and output. Traceability tools are specified to characterize this loop as a controlled loop. With regard to PVC waste treatment, the present standard relates to existing standards such as EN 15343, EN 15346 and EN 15347 With regard to semifinished and/or finished products, it refers to the European Standard for un-plasticized PVC window profiles (see EN 12608-1) and to the European harmonized standard for windows and doors (see EN 14351-1).
Komité: CEN/TC 249 (Plastics)
Opprinnelse:
Sluttdato: 27. aug 2019
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