ISO 24316:2022 PDF

Overview

ISO 24316:2022 - Ships and marine technology - Design and test requirements for steel doors using electrical trace heating - specifies requirements for the design, materials, manufacture, testing and designation of electrical trace heating for steel doors fitted to vessels operating in low temperature environments (below −10 °C). The standard addresses structural types, sealing, materials (including trace heater cable construction), quality of manufacture and mandatory tests (weather-tightness and anti-icing) to ensure doors remain operable and ice-free in polar and cold-water service.

Key topics and technical requirements

• Scope and purpose
  • Applies to steel doors on vessels sailing where mean daily low temperatures fall below −10 °C (e.g., Arctic waters).
  • Ensures doors can be opened normally by adding heat via trace heating.
• Design & classification
  • Opening direction: Type L (left-hand) and Type R (right-hand).
  • Door locking modes: Type M (multi-buckle), Type H (single-handle linkage), Type W (hand-wheel linkage).
• Sealing
  • Sealing rubber stripe cross-section: 45 mm × 20 mm; allowable initial compression 2 mm; compression under closing should be **