Overview
ISO 22627:2026 sets out the technical requirements for painting the accommodation interior of passenger ships constructed with steel, such as ferries, cruise ships, and ocean liners. The standard provides guidelines for primary and secondary surface preparation, selection and application of protective paint systems, and procedures for inspection and testing. It aims to ensure both corrosion protection and safety (including low flame-spread and minimal harmful substances) while maintaining the quality of interior environments on passenger vessels. The standard excludes flooring surfaces but can be referenced for other ship types with steel accommodation areas.
Key Topics
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Surface Preparation
- Describes standards for primary (blast-cleaning as per ISO 8501-1) and secondary surface treatment for steel substrates.
- Differentiates requirements for “cold” and “warm” areas, optimizing corrosion protection by location.
- Specifies minimum cleaning grades and finish standards for both visible and invisible surfaces.
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Protective Paint Systems
- Details suitable paint types, such as alkyd, epoxy, and ethyl silicate coatings.
- Suggests nominal dry film thicknesses (NDFT) and number of coats by area and visibility.
- Sets out application methods to ensure coverage, durability, and uniformity.
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Paint Requirements
- Mandates low flame-spread properties and restrictions on hazardous substances like asbestos and heavy metals.
- Ensures that paints provide decorative, anti-corrosive, and safety performance.
- Requires performance in salt spray and drying tests for quality assurance.
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Inspection and Testing
- Outlines acceptance criteria for environmental conditions, film thickness, and surface quality.
- Provides guidelines for measuring and verifying application using methods like ISO 2808 and ISO 8502-4.
- Introduces the “80/20” rule to ensure consistent film coverage and thickness.
Applications
ISO 22627:2026 is essential for:
- Shipyards and Vessel Constructors: Ensures uniform, high-quality painting standards for steel accommodation interiors, improving durability and safety.
- Shipowners and Operators: Supports effective maintenance programs and regulatory compliance for passenger comfort and vessel longevity.
- Marine Coating Manufacturers: Provides guidance for developing compliant paint products with specific thickness, curing, and fire safety characteristics.
- Maritime Safety Inspectors and Surveyors: Offers benchmarks to assess paint system application, environmental protection, and health standards onboard.
- Naval Architects and Designers: Assists in specifying precise protective requirements for steel accommodation spaces during vessel design phases.
The standard directly contributes to the corrosion protection, life-cycle cost reduction, and safety of passenger vessel interiors. Its adoption supports passenger health and fire safety regulations, as well as the aesthetic presentation of ships.
Related Standards
ISO 22627:2026 references or works in conjunction with several key international standards for surface preparation, coating application, and testing:
- ISO 8501-1 / ISO 8501-3: Surface cleanliness and preparation grades for steel substrates
- ISO 9227: Salt spray tests for corrosion resistance
- ISO 9117-1 / ISO 9117-3: Tests for paint drying and surface properties
- ISO 8502-4: Assessing surface conditions before painting
- ISO 2808: Determination of paint film thickness
- ISO 12944-2: Classification of corrosive environments for paint selection
By aligning with these related standards, ISO 22627 supports comprehensive quality assurance and international interoperability for the painting of steel passenger ship accommodations.
Keywords: marine painting standard, ship accommodation interior, steel surface preparation, marine coating inspection, low flame-spread paint, ISO 22627, passenger ship maintenance, marine corrosion protection, maritime safety standards.
