DIN 12918-3:2004-11

The standard applies for technical gas valves in laboratories, used with gas purities of up to 2.0 respectively 4.5. The standard specifies types, dimensions, materials and requirements as well as tests for construction, leak tightness and stability as well as marking of laboratory fuel gas valves for a nominal pressure up to 1,6 MPa (16 bar) and a max. temperature up to 60 Grad C.