Pressure regulators and associated safety devices for gas appliances - Part 1: Pressure regulators for inlet pressures up to and including 50 kPa— 46 стр.
Automatic electrical controls for household and similar use - Part 2-9: Particular requirements for temperature sensing controls (IEC 60730-2-9:2008, modified) (english version)
Copper and copper alloys - Seamless, round copper tubes for water and gas in sanitary and heating applications; German version EN 1057:2006+A1:2010— 37 стр.