EN ISO 8099-1:2018 PDF

Overview

EN ISO 8099-1:2018 - Small craft - Waste systems - Part 1: Waste water retention specifies requirements for the design, construction and installation of systems for temporary retention of sewage on small craft. It applies to craft with a length of hull (LH) up to 24 m and focuses on holding and retaining toilet waste for subsequent disposal. The standard does not address waste water treatment systems.

Key Topics and Requirements

The standard sets out technical requirements across system components and installation practices, including:

• Scope and definitions - terms such as retention system, sewage, holding tank, portable holding tank, accessible/readily accessible.
• General requirements - toilets must connect solely to holding tanks; restrictions on Y-valves between toilet and tank.
• Materials - acceptable materials for tanks, hoses and fittings (compatibility, durability).
• Plumbing system - hoses, piping, seacock and through‑hull fittings (references ISO 9093‑1/2 for seacocks).
• Vent system - venting of gases and tanks, heel angle considerations, prevention of clogging and pressure resistance; specific guidance for:
  • rigid tanks under 400 L
  • rigid tanks 400 L and greater
  • flexible tanks
• Holding tanks - fastening, access openings, wall construction, contents level indication, accessibility of fittings; separate requirements for permanently installed and portable holding tanks.
• Pump‑out fitting - nominal design is given (see Annex A) to enable standard connection with shore reception facilities.
• Identification and documentation - markings and information to be included in the owner's manual (clause 11).
• Annex B - examples of typical installations for toilet retention systems.

The document also references related normative standards (ISO 228‑1, ISO 9093‑1/2, ISO 10133, ISO 13297) and supports conformity with aspects of EU Directive 2013/53/EU related to discharge and delivery ashore of toilet waste.

Applications and Who Uses It

EN ISO 8099-1:2018 is used by:

• Boat builders and designers specifying sanitary systems for small craft (≤24 m)
• Marine equipment manufacturers (holding tanks, hoses, pump‑out fittings)
• Marine installers and shipyards performing plumbing, venting and through‑hull installations
• Marina operators and waste reception facilities ensuring compatibility with pump‑out fittings
• Surveyors and regulatory authorities assessing compliance with EU requirements and safety documentation
• Boat owners and crew for correct operation, maintenance and disposal practices

Practical benefits include improved safety, predictable pump‑out compatibility, and clearer installation and maintenance requirements for marine sanitation and waste water retention systems.

Related Standards

• ISO 228‑1 (pipe threads)
• ISO 9093‑1 / ISO 9093‑2 (seacocks and through‑hull fittings)
• ISO 10133 / ISO 13297 (small craft electrical systems)

Keywords: EN ISO 8099-1:2018, small craft, waste water retention, holding tank, sewage retention, pump‑out fitting, marine sanitation, toilet retention systems.