Overview
EN ISO 14738:2008 (ISO 14738:2002) - Safety of machinery - Anthropometric requirements for the design of workstations at machinery - establishes principles for deriving workstation dimensions from anthropometric measurements. Prepared by CEN/ISO ergonomics committees, the standard applies to non‑mobile machinery and defines the body space requirements for equipment during normal operation in sitting and standing postures. It is harmonized for the EU Machinery Directive and incorporates corrigenda (Cor 1:2003, Cor 2:2005).
Key topics and technical requirements
- Anthropometric basis: Principles for converting human body measurements into usable design dimensions (reach envelopes, clearance, working zones) based on static anthropometric data.
- Main work posture: Method for determining whether tasks should be performed sitting, standing, or with support, and guidance to encourage movement and posture changes.
- Workstation dimensions: Requirements and guidance for working height, working surface height and slope, seat design, raised seating, standing with support, and space needed for normal operation.
- Task analysis inputs: Recommends considering duration, working area size, object dimensions, force and action demands, coordination, stability, visual needs, frequency/duration of movements and the ability to change posture.
- Normative and informative annexes: Annex A contains anthropometric data; Annex B describes body dynamics considerations.
- Limitations: The standard does not cover space demands for maintenance, repair or cleaning, nor does it provide specific recommendations for VDT (visual display terminal) workstations - ISO 9241-5 is recommended for those cases.
- Related hazard guidance: Situations intended to prevent reaching hazards are covered by ISO 13852.
Applications and who uses it
EN ISO 14738 is intended for:
- Machine designers and manufacturers - to size operator interfaces, controls, seats, platforms and enclosures.
- Ergonomists and human factors engineers - to evaluate postures, reachability and operator comfort.
- Safety engineers and compliance officers - to demonstrate conformity with the Machinery Directive and ergonomic safety requirements.
- Workplace designers and integrators - to optimize machine layout, working heights and access for typical operator populations.
Practical uses include defining safe reach zones, specifying working heights and seat parameters, conducting ergonomic risk assessments, and supporting conformity documentation for regulatory compliance.
Related standards
Keywords: EN ISO 14738:2008, ISO 14738, anthropometric requirements, workstation design, ergonomics, safety of machinery, working height, reach envelope, Machinery Directive.
