GOST R ISO 14122-4-2009 PDF

Full title and description

GOST R ISO 14122-4-2009 — Safety of machinery. Permanent means of access to machinery. Part 4: Vertical ladders (Russian national adoption of ISO 14122-4 addressing vertical/fixed ladders used as permanent means of access to machinery).

Abstract

This national standard specifies safety requirements and verification methods for vertical (fixed) ladders that form part of machinery or the part of a building whose principal function is to provide access to machinery. It covers ladder geometry, rungs, spacing, clearances, protection systems (cages, fall-arrest devices), installation conditions and strength/testing requirements derived from the ISO 14122 series.

General information

• Status: Active / in force (national GOST R adoption).
• Publication date: Introduced / put into effect 1 July 2010 (designated GOST R ISO 14122-4-2009).
• Publisher: National standard of the Russian Federation published under the GOST R system (Federal Agency on Technical Regulating and Metrology — Rosstandart).
• ICS / categories: 13.110 — Safety of machinery.
• Edition / version: GOST R adoption 2009 (document title ends with -2009); text is authentic to ISO 14122-4:2004 (national adoption). Users should note ISO later published a revised edition (ISO 14122-4:2016).
• Number of pages: 24 pages (PDF / printed format in vendor catalogs).

Scope

Applies to vertical ladders (inclined between approximately 75° and 90°) that are part of machinery or the part of a building whose main function is to give access to machinery. The standard gives minimum safety requirements for design, installation, clearances, protective devices (cages, hoops, guided-type fall arresters), and strength/testing procedures for ladder components and associated access zones. It does not cover powered access equipment such as lifts or escalators.

Key topics and requirements

• Definition and application: vertical (fixed) ladders as permanent means of access to machinery; scope and exclusions.
• Geometrical requirements: rung position, spacing, clearance between ladder and nearby structures, and required entry/exit clearances.
• Strength and mechanical integrity: load and bending tests for rungs and ladder assemblies; acceptance criteria for deflection and residual deformation.
• Fall protection: when and how to provide protective cages, hoops or guided-type fall-arrest systems, and requirements for their geometry and attachment.
• Fixing and installation: requirements for fixing elements, spacing to obstacles, and requirements for intermediate platforms and entry/exit zones.
• Verification and testing: mandatory tests (strength, bending, step/rung tests) and referenced test methods (for example EN/ISO referenced test clauses).

Typical use and users

Used by machine builders, equipment designers, plant safety engineers, installation contractors, and compliance officers responsible for ensuring safe permanent access to machinery. It is referenced when designing or assessing fixed ladders attached to machines or to the building area primarily used to access machinery.

Related standards

This document is part of the ISO 14122 series and is intended to be used together with ISO 14122-1 (choice of access), ISO 14122-2 (working platforms and walkways) and ISO 14122-3 (stairs, stepladders and guard-rails). It also references and cross-references other norms and test standards such as EN 131-2 (ladder test methods), EN 353-1 and EN 363 (fall protection), and ISO 12100 (general machine safety principles). National or later international revisions (ISO 14122-4:2016) may update or supersede some technical details.

Keywords

GOST R, ISO 14122-4, vertical ladders, fixed ladders, safety of machinery, permanent means of access, ladder cages, fall arrest, ladder testing, Rosstandart.

FAQ

Q: What is this standard?

A: GOST R ISO 14122-4-2009 is the Russian national adoption (GOST R) of the ISO 14122-4 text addressing vertical (fixed) ladders used as permanent means of access to machinery. It adapts the international provisions for use within the Russian national standards framework.

Q: What does it cover?

A: It covers design, installation and verification requirements for vertical/fixed ladders that are part of machinery or of building areas whose main function is providing access to machinery — including geometry, clearances, protective cages or fall-arrest arrangements, fixing details, and strength/testing requirements. It excludes powered access equipment such as lifts and escalators.

Q: Who typically uses it?

A: Machine manufacturers, equipment designers, plant safety professionals, installers and conformity/compliance personnel use this standard when specifying or assessing fixed ladders serving machinery. It is also used by test laboratories and auditors checking access safety.

Q: Is it current or superseded?

A: The GOST R ISO 14122-4-2009 text was introduced for national use in 2010 and is listed as an active GOST R document in vendor and catalog records. Internationally, ISO 14122-4 was later revised (ISO 14122-4:2016); users should verify whether a newer national adoption or replacement exists in Russia if they require the most up-to-date international requirements. Always check the national publication database or Rosstandart for the current legal/technical status before applying the standard in a compliance context.

Q: Is it part of a series?

A: Yes — it is Part 4 of the ISO 14122 series (Safety of machinery — Permanent means of access to machinery). The series includes Part 1 (choice of access), Part 2 (working platforms and walkways), Part 3 (stairs, stepladders and guard-rails) and Part 4 (fixed/vertical ladders).

Q: What are the key keywords?

A: Vertical ladder, fixed ladder, permanent means of access, safety of machinery, ladder cage, fall arrester, ladder testing, GOST R, Rosstandart, ISO 14122-4.