This standard specifies performance requirements for rigid and flexible metal internal pipes, rigid metal fittings and fittings that are used to conduct combustion products from heat sources to the outside air (including their fasteners). Enameled connecting elements are also the subject of this document
GOST R 59375.2-2022 history
2022GOST R 59375.2-2022 Chimneys. Requirements for metal chimneys. Part 2. Metal flue liners and connecting flue pipes