Din — En Iso 14122-3 Pdf Hot!

DIN EN ISO 14122-3 standard is a specialized safety document focusing on permanent means of access to machinery , specifically stairs, stepladders, and guard-rails

Compliance checklist (quick)

• Is the access permanent and attached to the machinery/plant? If yes, apply Part 3.
• Are stair risers uniform and within recommended limits?
• Are treads non-slip and wide enough for intended traffic?
• Are handrails present where required and continuous?
• Are guard-rail openings small enough to prevent falls and have toe boards if needed?
• Are landings provided at required intervals and sufficiently sized?
• Are load and structural requirements verified by an engineer?
• Are surfaces, corrosion protection and illumination appropriate for environment?
• Are signs and markings present where necessary?
• Is a maintenance and inspection regime in place?

Step 2: Selection of Access Type

• Use stairs (30°–45°) for high-frequency, heavy loads, or emergency egress.
• Use stepladders (45°–60°) for occasional access with light hand tools.

• Step Width: Minimum 600mm (recommended), though this varies based on traffic flow.
• Riser Height ($h$) and Tread Depth ($g$): The standard provides formulas to ensure ergonomic stepping. A common rule is $2h + g = 600mm$ to $650mm$.
• Headroom: A minimum clearance of 2,200mm is typically required above the steps.