Din En Iso 14122-3 Pdf May 2026

DIN EN ISO 14122-3 does not exist in isolation. It is Part 3 of a four-part series:

DIN EN ISO 14122-3 defines essential safety requirements for the design and construction of permanent stairs, stepladders, and guard-rails used for machinery access. The Type-B standard mandates specific, safe geometry for steps and guard-rails to prevent falls and accidents during industrial machinery operation. For more details, visit ISO Online Browsing Platform. ISO 14122-3:2001(en), Safety of machinery

The DIN EN ISO 14122-3 is a harmonized European and international standard that specifies safety requirements for permanent means of access to machinery—specifically focusing on stairs, step ladders, and guard-rails. din en iso 14122-3 pdf

It is part of a four-part series under the general title "Safety of machinery — Permanent means of access to machinery". The current active version is ISO 14122-3:2016. Scope and Application ISO 14122-3:2001(en), Safety of machinery

To understand why you need the official DIN EN ISO 14122-3 PDF, let’s examine the core specifications. Any deviation from these values can lead to non-compliance. DIN EN ISO 14122-3 does not exist in isolation

The standard differentiates between standard stairs and stepladders based on the angle of ascent.

  • Dimensions:
  • Slip Resistance: Steps must have slip-resistant surfaces (grating, checker plate, or coated surfaces).

    • Guard-rails are critical for preventing falls from elevation. DIN EN ISO 14122-3 specifies: Dimensions:

  • Stairways
  • Ladders (fixed)
  • Openings and transitions
  • Edges and guarding
  • Lighting, signage, and visibility
  • Maintenance and inspection

    • Guardrails are mandatory on any open side where a fall height exceeds 500 mm. Key requirements:

    The standard dictates the relationship between the rise (height of the step) and the going (depth of the step). This is often calculated using the "step formula" to ensure a natural walking rhythm.