The guideline supplements the guideline VDI 3003 to include nitrogen gas springs with diameters of 19 mm and 25 mm. The filling hole is provided either in the vertical plane, on the cylinder bottom, or in the horizontal plate, at the cylinder casing (no filling through piston rod).
VDI 3003 Blatt 2-2004 Referenced Document
DIN EN 10270-1:2001 Steel wire for mechanical springs – Part 1: Patented cold drawn unalloyed spring steel wire
DIN EN ISO 10642:1998 Hexagon socket countersunk head screws (ISO 10642:1997); German version EN ISO 10642:1997