Kemesta

 

This document specifies the terms, definitions, methodologies, and calculations that are required for the physical recycling and recovery of plastic waste. The document also defines the different types of physical recycling technologies used in the recovery and recycling of plastics waste sourced from post-industrial and post-consumer waste streams. The general requirements, process stages from “input “to “output” that should be considered in evaluating different types of physical recycling methodologies are described in the document which may be useful for any plastics waste processor or recycler. Further, this document gives guidance on the general process and quality requirements to be considered at all stages of the recovery process and provides general recommendations for inclusion in material standards, test standards and product specifications. This document provides guidelines for all types, technologies of physical recycling, currently in practice which are characterized by processes that include the selective dissolution, delamination, extraction or precipitation of plastic waste without intentional changes to its chemical structure. The process stages, requirements, recommendations, and terminology presented in this document are intended to be of general applicability.

 

This document specifies general requirements for the measurement of viruses in workplace air. This document complements the scope of EN 13098. The document provides guidelines for the assessment of workplace exposure to airborne viruses comprising the methodology for sampling as well as for analysis, which is applicable for both, active or inactive viruses, e.g. methods based on cell-culture or molecular biology. This document is not applicable for the measurement of other microorganisms than viruses and microbial compounds.

 

Applicable to test pieces cut from products of cellular materials. Useful for two purposes: a) studying the structure of cellular products in connection with their physical properties and their method of manufacture and b) ensuring product quality (quality assurance). Describes principle, apparatus, test piece and conditions, procedure and calculation and expression of the results. Three figures deliver the details for testing.