ČSN EN 16475-7

This European Standard specifies requirements and test methods for rain caps that are used as components, subject to flue gas, in order to protect against rain entry into the chimney flues.
Rain caps which are part of components of a system chimney or other components of a chimney such as terminals, are not covered by this European Standard.
It also specifies the requirements for marking, manufacturers' instruction, product information and attestation and verification of constancy of performance (AVCP).
NOTE - Rain caps according to this standard are suitable for both dry and wet chimney applications.