Overview - ISO 24682:2024 (Ships and marine technology)
ISO 24682:2024 specifies technical requirements for “B” class fire‑resistant compartment systems constructed from composite mineral wool panels for ships and offshore installations. Aligned with the 2010 FTP Code and SOLAS 74 (and related IMO guidance), the standard covers fire resistance, acoustic insulation, openings and penetrations, material limits, installation tolerances and inspection procedures for accommodation spaces where “B” class divisions are required.
Key technical topics and requirements
- Materials and composition
- Requirements for composite mineral wool panels and facings, including prohibition of asbestos and limits on combustible finishes.
- Limits on combustible surfacing: maximum calorific value and restricted total volume (see document for exact figures).
- Panel density and thickness tolerance: within ±10% of nominal values declared by the designer.
- Fire resistance
- Criteria that “B” class systems must meet under SOLAS Chapter II‑2 and the 2010 FTP Code (applies to “B‑0” and “B‑15” classes).
- Typical construction and connection details are illustrated; alternate arrangements consistent with IMO MSC/Circ.917 are acceptable.
- Acoustic insulation
- Laboratory and in‑service acoustic performance requirements and reference to ISO 10140‑2 measurement methods.
- Openings and penetrations
- Requirements and installation details for fire doors, window boxes, balcony doors, ventilation ducts, pipes and cable penetrations.
- Typical construction details provided in Annexes B and C to ensure penetration integrity.
- Tolerances, appearance and inspection
- Installation tolerance limits and appearance criteria.
- Inspection scope: materials, fire resistance, acoustic insulation, openings, penetrations, installation tolerances and visual appearance.
Practical applications and users
Who uses ISO 24682:2024:
- Shipbuilders and shipyards specifying accommodation and service spaces.
- Naval architects and marine engineers designing “B” class divisions.
- Classification societies and flag State surveyors performing compliance inspections.
- Manufacturers of composite mineral wool panels, doors, and penetration seals.
- Offshore installation designers and safety officers managing SOLAS/IMO compliance.
Practical benefits:
- Ensures consistent fire‑resistant construction for passenger and cargo ships and offshore units.
- Streamlines approval and inspection by aligning with SOLAS, FTP Code and IMO circulars.
- Provides construction and penetration details to maintain both fire performance and acoustic comfort.
Related standards and references
- 2010 FTP Code (International Code for Application of Fire Test Procedures)
- SOLAS (International Convention for the Safety of Life at Sea)
- IMO MSC.337(91), IMO MSC/Circ.917
- ISO 1716, ISO 10140‑2, ISO 22262‑1
Keywords: ISO 24682:2024, B class fire-resistant compartment systems, composite mineral wool panel, SOLAS, FTP Code, ship fire safety, acoustic insulation, penetration sealing, marine standards.