Overview - EN ISO 15748-1:2002 (Potable water supply on ships - Planning & design)
EN ISO 15748-1:2002 (ISO 15748-1:2002) addresses the planning, design and configuration of potable water supply systems on ships, stationary or floating marine structures and inland waterway vessels. The standard specifies the minimum requirements to protect potable water and maintain its quality and gives guidance on components and pipeline installation. It covers system scope (generation, treatment, storage and distribution) but does not cover transfer regulations for potable water delivery between units.
Key topics and technical requirements
The standard organizes technical guidance and minimum requirements across practical system elements, including:
- Capacity and sanitary requirements - determining supply capacity and hygiene measures to protect water quality.
- Potable water system layout - definitions and layout concepts: supply line, water main, distribution and ring lines.
- Pipelines, pipes and fittings - recommended pipe types, dimensions and jointing practices for potable water lines.
- Pumps and pumping arrangements - requirements for supply and circulating pumps.
- Potable water tanks and storage - design, filling connections and construction considerations to prevent contamination.
- Potable water heating and temperature ranges - guidance on water heaters (continuous and storage); definitions include cold water (5–25 °C) and hot water (50–90 °C).
- Water treatment and sterilization - filters, disinfection/sterilization methods and maintenance hints.
- Testing, flushing and inspection - commissioning checks, pipeline flushing and maintenance regimes.
- Annexes - informative explanations, recommended pipe dimensions and filter maintenance guidance.
The standard references related technical documents (e.g., ISO 5620-1, ISO 1127, ISO 14726-1) and is linked to ISO 15748-2 (method of calculation) for hydraulic sizing.
Practical applications and who uses it
EN ISO 15748-1:2002 is used by:
- Naval architects and ship designers for specifying potable water distribution systems during vessel design.
- Marine engineers and shipyards for system installation, materials selection and layout.
- Equipment manufacturers (tanks, pumps, heaters, fittings) to ensure compatibility with marine potable water requirements.
- Classification societies, operators and operators’ technical teams to assess compliance, commissioning and maintenance procedures.
- Offshore platform and inland waterway operators designing fixed or floating potable water systems.
Keywords: EN ISO 15748-1:2002, potable water supply on ships, planning and design, ship potable water systems, marine piping systems, potable water tanks, sterilization, water treatment.
Related standards
- ISO 15748-2: Method of calculation for potable water systems
- ISO 5620-1: Filling connections for drinking water tanks
- ISO 14726-1: Identification colours for piping contents
- SOLAS 1974: Relevant safety regulations for ships