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.
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
The DIN EN ISO 14122-3 is a European and International standard specifically covering safety requirements for stairs, stepladders, and guard-rails used as permanent means of access to machinery.
The standard was most recently updated in 2016 (replacing the 2001 version) to align with the latest ergonomic and safety data. Key Components of the Standard
The standard is broken down into specific design and safety requirements for three main "pieces" of access equipment:
Guard-rails (Section 7): Defines the "anatomy" of a safe railing. A standard guard-rail must include: Handrail: The top rigid element for body support. din en iso 14122-3 pdf
Knee rail: A middle horizontal rail to prevent a person from slipping through.
Toe-plate: A rigid lower part (min. 100mm high) to prevent objects from falling off the walking level.
Stanchions: The vertical posts that anchor the rail to the structure.
Stairs (Section 5): Specifies dimensions to ensure safe climbing, including: Overlap ( ): Must be ≥10is greater than or equal to 10 Rise ( ): Should remain constant throughout the flight of stairs. Pitch: Generally between 30∘30 raised to the composed with power 38∘38 raised to the composed with power for standard stairs. Stepladders (Section 6): Covers steeper access (typically 45∘45 raised to the composed with power 75∘75 raised to the composed with power ) where users may need to face the ladder while descending. Where to find the PDF
Since ISO standards are copyrighted, full official versions are typically purchased through national standards bodies like DIN (Deutsches Institut für Normung) or the ISO Store. However, you can view technical previews and detailed summaries on professional documentation sites: INTERNATIONAL STANDARD ISO 14122-3 - Cloudfront.net The DIN EN ISO 14122-3 is a harmonized
* Note 1 to entry: Typical parts of a guard-rail are shown in Figure 2 and defined in 3.2. 1 to 3.2. a) Guard-rail with knee rail. dqo52087pnd5x.cloudfront.net ISO 14122-3 - iTeh Standards
DIN EN ISO 14122-3:2016 establishes mandatory safety requirements for permanent industrial stairways, stepladders, and guard-rails, focusing on dimensions for safe access and fall protection, including specific structural load tests. The 2016 standard mandates a minimum guard-rail height of 1,100mm and outlines specific deflection limits under load. For more details, visit dqo52087pnd5x.cloudfront.net INTERNATIONAL STANDARD ISO 14122-3 - Cloudfront.net
The DIN EN ISO 14122-3 standard establishes essential safety requirements for permanent, non-powered access to stationary and mobile machinery, specifically covering stairs, step ladders, and guard-rails. The current 2016 edition (ISO 14122-3:2016) provides updated technical specifications and verification methods to ensure operator safety during maintenance and operation. Core Scope and Application
Stationary Machinery: Primary application for fixed access points attached to industrial machines.
Building Integration: Applicable to stairs or guard-rails within a building if their primary function is providing access to a machine. Ensuring Safe Access: A Comprehensive Guide to DIN
Mobile Machinery: Also applies where fixed access means are necessary on mobile equipment.
Exclusions: Does not apply to powered systems like lifts or escalators, nor to machines manufactured before its publication date. Technical Design Requirements
The standard specifies rigorous dimensions based on ergonomic data to prevent accidents such as tripping or falling. INTERNATIONAL STANDARD ISO 14122-3 - Cloudfront.net
In the realm of machinery safety, the focus is often on guarding moving parts or emergency stop mechanisms. However, a significant portion of industrial accidents occurs not during the operation of the machine, but while accessing it for maintenance, cleaning, or adjustment. This is where DIN EN ISO 14122-3 plays a critical role.
This standard is the definitive guideline for designing safe stairways, stepladders, and guard-rails for machinery. This article explores the scope of the standard, key design requirements, and how accessing the PDF version is essential for compliance.
A: Yes. The “DIN EN” prefix means it is the German adoption of the European standard, but the official PDF is usually bilingual (German/English) or pure English. When purchasing, select “English” language option.