Slate and stone for discontinuous roofing and external cladding - Part 1: Specifications for slate and carbonate slate; German version FprEN 12326-1:2014— 52 стр.
Flueing and ventilation for gas appliances of rated input not exceeding 70 kW net (1st, 2nd and 3rd family gases), Specification for installation of gas appliances to chimneys and for maintenance of chimneys— 122 стр.