ISO 15534-2:2000

Overview

ISO 15534-2:2000 - "Ergonomic design for the safety of machinery - Part 2: Principles for determining the dimensions required for access openings" provides principles and minimum dimensional criteria for designing access openings in machinery. It specifies how to apply anthropometric data (from ISO 15534-3) and defines when and how to add allowances for clothing, tools, movement and working conditions. The part is intended primarily for non‑mobile machinery and focuses on safety, ergonomics and practical usability of openings used for inspection, maintenance and operation.

Key topics and technical requirements

• Anthropometric basis: Opening dimensions are based on the 95th percentile (largest relevant body dimensions) while reach distances use the 5th percentile (smallest relevant reach), using the least favourable body dimensions of the expected user population.
• Minimum/maximum values: The standard specifies minimum opening sizes (breadth, height, depth) and maximum reach depths to reduce risk and strain; designers are encouraged to increase openings where possible.
• Allowances and adjustments: ISO 15534-2 explains how to combine static anthropometric measures with allowances for clothing, PPE, body movement, tools, and environmental conditions. Annex A gives normative guidance on additional space requirements (for example, a 50 mm clearance allowance is cited as a typical entry clearance).
• Types of access openings: Dimensioning guidance covers many specific access cases (upper body, head, two arms, single arm, fists, flat hand, fingers, foot access, foot‑operated controls), and gives symbols and measurement conventions (see Annex C).
• Positioning guidance: Annex B provides information on ergonomic positioning of access openings relative to operator posture and workspace.
• Safety interfaces: Situations where reaching must be prevented (to avoid hazards) are handled by related standards such as ISO 13852.

Applications and users

Who uses ISO 15534-2:

• Machinery designers and OEMs seeking compliance with ergonomic and safety best practices
• Safety engineers and risk assessors performing ergonomic hazard analysis
• Maintenance planners, human factors specialists and regulatory compliance teams
• Standards writers and certifiers evaluating machine accessibility and servicing

Practical uses:

• Specifying minimum dimensions for inspection and maintenance hatches
• Designing control panels, hand or finger access ports, and foot access for actuators
• Integrating anthropometric allowances into machine layout to improve safety, comfort and efficiency

Related standards

• ISO 15534-3 (Anthropometric data)
• ISO/TR 12100-1 (Basic safety terminology and methodology)
• ISO 13852 (Safety distances to prevent reaching hazards)
• EN 547-2 / EN 614-1 referenced in the standard’s background (ergonomics and machinery directive alignment)

Keywords: ISO 15534-2:2000, ergonomic design, access openings, machinery safety, anthropometric data, access dimensions, reach distances, allowances.