Overview
EN ISO 15027-1:2012 - Immersion suits - Part 1: Constant wear suits, requirements including safety - is a CEN-endorsed international standard that defines performance and safety requirements for constant wear immersion suits used to protect people from the effects of cold water immersion (e.g., cold shock and hypothermia). Applicable to both dry and wet constant wear suits, the standard sets minimum thermal protection levels, ergonomic and material requirements, marking and user information. Abandonment suits are excluded (see ISO 15027-2); test methods are given in ISO 15027-3.
Key Topics
- Scope and definitions: Terms such as underclothing and cold shock are defined to ensure consistent application.
- Thermal protection: Specifies minimum insulation performance and guidance on thermal protection times for different suit types and water temperatures (minimum performance levels, not suitability for all conditions).
- Ergonomics and fit: Requirements to minimize impediment to movement and ensure adaptation to the user’s morphology.
- Buoyancy and flotation: Requirements for foam flotation materials, buoyancy characteristics and compatibility with lifejackets.
- Safety features: Conspicuity (high-visibility materials), buddy lines, gas/air inflation systems where applicable, and leakage resistance.
- Materials and durability: Requirements for fabrics, seams, component performance, flammability and temperature cycling.
- Marking and information: Mandatory marking, manufacturer information, and consumer point-of-sale labeling to support correct selection, use and maintenance.
- Performance testing: The standard references test methods (ISO 15027-3) and normative documents such as EN 340 and textile colour fastness standards.
Applications
EN ISO 15027-1:2012 is used to:
- Define minimum safety requirements for constant wear immersion suits in occupational and leisure contexts.
- Inform product design and certification for manufacturers of immersion suits and protective clothing.
- Guide procurement specifications for maritime operators, offshore installations, small craft, fishing fleets and water-rescue organizations.
- Support regulatory compliance and conformity assessment under EU PPE directives (see Annex ZA for relation to Directive 89/686/EEC).
Who uses this standard
- Manufacturers and designers of immersion and thermal protective clothing
- Certification bodies and test laboratories (using ISO 15027-3 test methods)
- Maritime, offshore and small‑craft operators, safety managers and PPE buyers
- Regulators, inspectors and rescue services assessing suitability and labeling
Related standards
- ISO 15027-2 - Abandonment suits (requirements)
- ISO 15027-3 - Test methods for immersion suits
- EN 340 - Protective clothing - General requirements
EN ISO 15027-1:2012 is a practical, safety-focused standard for anyone specifying, making or using constant wear immersion suits to mitigate cold water immersion hazards.
