This document specifies the design, materials, dimensions and marking requirements for cam locking couplings that serve as the link between hoses and connections to transport liquids, solids and gases, except liquid gas and steam. The couplings are capable of operating within the pressure range "0,8 bar1 to 16 bar and in a working temperature range of "20 °C up to +65 °C. For all sizes of aluminium-cast-material couplings and for all couplings size DN 100 the pressure range is from "0,8 bar to 10 bar.