This European Standard specifies the performance requirements and test methods for system chimneys with plastic flue liners used to convey the products of combustion from appliances to the outside atmosphere under dry and wet conditions. It also specifies the requirements for marking, manufacturer's instructions and evaluation of conformity. This document describes chimney components from which system chimneys can be assembled. This European Standard is not applicable to chimneys with sootfire resistance classification class G. This European Standard is not applicable for chimneys with the following classification: corrosion resistance class 2 concerning natural wood2) corrosion resistance class 3; pressure class N2. This European Standard is applicable to chimneys constructed so that no condensate concentration can occur e. g. with a minimum inclination of 3 ° to the horizontal. This European Standard is only applicable to system chimneys with plastic flue liners and is not applicable for system chimneys with plastic coated flue liners. This European Standard is not applicable to structurally independent (free-standing or self-supporting) chimneys.