Din: En Iso 14122-3 Pdf [work]

: Must include a handrail, at least one knee rail (spaced no more than 500 mm from the top rail or floor), and a toe-plate (minimum high) to prevent objects from falling. : Access points should use self-closing gates

A: Not directly, but it is a harmonized standard under the EU Machinery Directive. Following it gives a "presumption of conformity". Deviating is possible but you must prove equivalent safety. din en iso 14122-3 pdf

Does not apply to powered access like lifts, elevators, or escalators. : Must include a handrail, at least one

The standard was most recently updated in (replacing the 2001 version) to align with the latest ergonomic and safety data. Key Components of the Standard Deviating is possible but you must prove equivalent safety

Using standard step rise of 200 mm: 3000 mm / 200 mm = 15 steps. Number of risers = 15. Number of treads = 14 (one less for top floor landing).