Ships and marine technology - Drainage systems on ships and marine structures - Part 2: Sanitary drainage, drain piping for gravity system (ISO 15749-2:2004)

ISO 15749-2:2004 applies to the design of sanitary drain lines in gravity systems (gravity drainage) on ships and marine structures.
For planning and basic requirements, ISO 15749-1 is applicable.

Schiffe und Meerestechnik - Entwässerungsanlagen auf Schiffen und Seebauwerken - Teil 2: Sanitär-Entwässerung, Abflussleitungen im Fallsystem (ISO 15749-2:2004)

Diese Norm gilt für die Konstruktion von Sanitär-Abflussleitungen in Fallsystemen (Schwerkraft-Entwässerung) auf Schiffen und Seebauwerken.
Für die Planung und grundsätzlichen Anforderungen gilt ISO 15749-1.

Navires et technologie maritime - Installations de drainage sur navires et structures maritimes - Partie 2: Drainage sanitaire, tuyaux de drainage pour système par gravité (ISO 15749-2:2004)

Ladje in pomorska tehnologija – Sistemi za odvajanje vode/odplak z ladij in struktur na morju – 2. del: Sanitarni sistem, odtočne cevi za težnostni sistem (ISO 15749-2:2004)

General Information

Status
Published
Publication Date
30-Apr-2004
Withdrawal Date
29-Nov-2004
ICS
47.020.30 - Piping systems
Technical Committee
CEN/TC 300 - Sea-going vessels and marine technology
Drafting Committee
CEN/TC 300 - Sea-going vessels and marine technology
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
01-May-2004
Completion Date
01-May-2004
Ref Project
SIST EN ISO 15749-2:2004 - Ships and marine technology - Drainage systems on ships and marine structures - Part 2: Sanitary drainage, drain piping for gravity system (ISO 15749-2:2004)

Overview

EN ISO 15749-2:2004 - Ships and marine technology - Drainage systems on ships and marine structures - Part 2: Sanitary drainage, drain piping for gravity system - specifies requirements for the design of sanitary drain lines using gravity drainage on ships and marine structures. It covers acceptable pipe materials and dimensions, routing and gradients, nominal bore sizing based on wastewater flow, cleaning and odour-control provisions, and interfaces with collector tanks or sewage treatment plants. For planning and basic requirements, see ISO 15749-1; for sewage disposal lines downstream of treatment, see ISO 15749-4.

Key topics and requirements

  • Scope: Design of sanitary drain lines in gravity systems that convey wastewater by gravity to a collector tank or sewage treatment plant.
  • Operating pressure: Sanitary drain and vent pipes shall be designed so internal pressure does not exceed 0.5 bar.
  • Approved pipe materials:
    • Steel (seamless, welded, threaded)
    • CuNiFe alloys (CuNi10Fe1.6Mn)
    • Spigot-and-socket steel or CuNiFe pipes
    • PVC-U (subject to IMO Resolution A.753 approval for plastic pipes)
  • Nominal bores (NB): Sizes and permitted materials are listed (common NBs include 32, 40, 50, 65, 80, 100, 125, 150). Branch and collecting pipe sizes are determined from flow-rate tables.
  • Flow-rate sizing: Nominal bores are calculated from standard flow rates for single branches (e.g., water closet ≈ 2.5 l/s → NB 100; urinal ≈ 0.5 l/s → NB 32–50). Collecting branches and gravity delivery lines use sum-flow tables to select NB.
  • Routing and gradient:
    • Drain lines must be self-draining; branch gradients typically from 1:100 to 1:66.7, main sewers 1:66.7 to 1:50.
    • Branches should be short; wastewater from midships should discharge at least one deck height down to both sides or center.
  • Operational features:
    • All sanitary fixtures and floor drains require odour seals.
    • Cleaning openings are mandatory where sections cannot otherwise be cleaned, notably in galleys and water-closet runs.
  • Testing and operation: Acceptance and leakage testing follow ISO 15749-1 procedures.

Applications and practical value

  • Use this standard when designing or installing sanitary gravity drainage on:
    • Commercial ships, ferries, offshore platforms, and other marine structures
    • Newbuild plumbing systems, refits, and upgrades
    • Integration with collector tanks and onboard sewage treatment plants
  • Practical benefits include consistent pipe selection, reliable self-draining layouts, compliance with classification societies, and safer sewage handling aboard vessels.

Who should use this standard

  • Marine and naval architects
  • Shipbuilders and shipyards
  • Marine engineers and piping designers
  • Classification societies and surveyors
  • Ship operators, shipboard maintenance teams, and regulatory compliance specialists

Related standards

  • ISO 15749-1 - Sanitary drainage-system design (planning/basic requirements)
  • ISO 15749-4 - Sewage disposal pipes (post-treatment discharge)
  • IMO Resolution A.753 - Approval guidelines for plastic pipes on ships

Keywords: EN ISO 15749-2:2004, sanitary drainage, gravity drainage, drain piping, ships, marine structures, collector tank, sewage treatment plant, PVC-U, CuNiFe, steel pipes, nominal bore.

Frequently Asked Questions

EN ISO 15749-2:2004 is a standard published by the European Committee for Standardization (CEN). Its full title is "Ships and marine technology - Drainage systems on ships and marine structures - Part 2: Sanitary drainage, drain piping for gravity system (ISO 15749-2:2004)". This standard covers: ISO 15749-2:2004 applies to the design of sanitary drain lines in gravity systems (gravity drainage) on ships and marine structures. For planning and basic requirements, ISO 15749-1 is applicable.

ISO 15749-2:2004 applies to the design of sanitary drain lines in gravity systems (gravity drainage) on ships and marine structures. For planning and basic requirements, ISO 15749-1 is applicable.

EN ISO 15749-2:2004 is classified under the following ICS (International Classification for Standards) categories: 47.020.30 - Piping systems. The ICS classification helps identify the subject area and facilitates finding related standards.

You can purchase EN ISO 15749-2:2004 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Schiffe und Meerestechnik - Entwässerungsanlagen auf Schiffen und Seebauwerken - Teil 2: Sanitär-Entwässerung, Abflussleitungen im Fallsystem (ISO 15749-2:2004)Navires et technologie maritime - Installations de drainage sur navires et structures maritimes - Partie 2: Drainage sanitaire, tuyaux de drainage pour systeme par gravité (ISO 15749-2:2004)Ships and marine technology - Drainage systems on ships and marine structures - Part 2: Sanitary drainage, drain piping for gravity system (ISO 15749-2:2004)47.020.30Sistemi ceviPiping systemsICS:Ta slovenski standard je istoveten z:EN ISO 15749-2:2004SIST EN ISO 15749-2:2004en01-september-2004SIST EN ISO 15749-2:2004SLOVENSKI
STANDARD
Reference numberISO 15749-2:2004(E)© ISO 2004
INTERNATIONAL STANDARD ISO15749-2First edition2004-05-01Ships and marine technology — Drainage systems on ships and marine structures — Part 2: Sanitary drainage, drain piping for gravity systems Navires et technologie maritime — Installations de drainage sur navires et structures maritimes — Partie 2: Drainage sanitaire, tuyaux de drainage pour système par gravité
ISO 15749-2:2004(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
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ISO 2004 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 • CH-1211 Geneva 20 Tel.
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copyright@iso.org Web
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ii © ISO 2004 – All rights reserved
ISO 15749-2:2004(E) © ISO 2004 – All rights reserved iii Contents Page Foreword.iv 1 Scope.1 2 Normative references.1 3 Terms and definitions.2 4 Gravity systems.2 5 Pipes.2 6 Laying of drain lines.4 7 Determination of nominal bores.5 8 Collector tank and sewage treatment plant.7 9 Testing and operation of pipes.7 10 Disposal.7 11 Example of wastewater system.8
ISO 15749-2:2004(E) iv © ISO 2004 – All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 15749-2 was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee SC 3, Piping and machinery. ISO 15749 consists of the following parts, under the general title Ships and marine technology — Drainage systems on ships and marine structures: — Part 1: Sanitary drainage-system design — Part 2: Sanitary drainage, drain piping for gravity systems — Part 3: Sanitary drainage, drain piping for vacuum systems — Part 4: Sanitary drainage, sewage disposal pipes — Part 5: Drainage of decks, cargo spaces and swimming pools
INTERNATIONAL STANDARD ISO 15749-2:2004(E) © ISO 2004 – All rights reserved 1 Ships and marine technology — Drainage systems on ships and marine structures — Part 2: Sanitary drainage, drain piping for gravity systems 1 Scope This part of ISO 15749 applies to the design of sanitary drain lines in gravity systems (gravity drainage) on ships and marine structures. For planning and basic requirements, see ISO 15749-1. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IMO Resolution A.753 (18), Guidelines for the application of plastic pipes on ships 1) ISO 65, Carbon steel tubes suitable for screwing in accordance with ISO 7-1 ISO 4200, Plain end steel tubes, welded and seamless — General tables of dimensions and masses per unit length ISO 7268, Pipe components — Definition of nominal pressure ISO 9329-1, Seamless steel tubes for pressure purposes — Technical delivery conditions — Part 1: Unalloyed steels with specific room temperature properties ISO 9330-1, Welded steel tubes for pressure purposes — Technical delivery conditions — Part 1: Unalloyed steel tubes with specified room temperature properties
ISO 15749-1, Ships and marine technology — Drainage systems on ships and marine structures — Part 1: Sanitary drainage-system design ISO 15749-4, Ships and marine technology — Drainage systems on ships and marine structures — Part 4: Sanitary drainage, sewage disposal pipes
1) Published by International Maritime Organization, London. Available from IMO Secretariat, Publications Section, 101-104 Piccadilly, London W1V, United Kingdom. SIST EN ISO 15749-2:2004

ISO 15749-2:2004(E) 2 © ISO 2004 – All rights reserved 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 15749-1 apply. 4 Gravity systems 4.1 Description 4.1.1 Drain lines in gravity systems convey wastewater by gravity to a collector tank or sewage treatment plant. 4.1.2 Wastewater lines downstream of the sewage treatment plant are not part of the gravity system. For their configuration, ISO 15749-4 applies. 4.1.3 Figure 1 gives an example of a drainage system with drain lines in a gravity system. 4.2 Operating pressure Pipes in sanitary systems (drain and vent lines) shall be designed such that the operating pressure 2) (internal pressure) cannot exceed 0,5 bar. 5 Pipes 5.1 General Depending on the location, the following pipes may be used for gravity drain lines and vent lines:  steel pipes in accordance with 5.2;  steel pipes and CuNiFe pipes with spigot and socket joints 3) in accordance with 5.3;  CuNiFe pipes in accordance with 5.4;  PVC-U pipes in accordance with 5.5; plastic pipes shall be approved in accordance with IMO Resolution A.753 (18). For nominal bores see Table 1. Table 1 — Nominal bores for drain lines Nominal bore, NB 32 40 50 65 70 80 100 125 150 Steel and CuNiFe pipes X X X X — X X X X Spigot and socket pipes — X X — X X X X X PVC-U pipes X X X X — X X X X X: NB possible for this type of pipe; —: NB not possible for this type of pipe.
2) For definitions see ISO 7268. 3) Hereinafter referred to as spigot and socket pipes. SIST EN ISO 15749-2:2004

ISO 15749-2:2004(E) © ISO 2004 – All rights reserved 3 5.2 Steel p
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The standard EN ISO 15749-2:2004 provides a comprehensive framework for the design of sanitary drainage systems specifically for gravity drainage on ships and marine structures. This standard is crucial for ensuring that the sanitary drain lines are effectively designed and implemented, thereby promoting safety and hygiene in marine environments. The scope of ISO 15749-2:2004 clarifies its application to the structural and functional requirements of drain piping systems, presenting clear guidelines that enhance the understanding of gravity drainage processes on vessels and offshore structures. By focusing on gravity systems, the standard emphasizes the critical role of gravity in facilitating drainage, ensuring that the design minimizes risks associated with blockages or backflows. One of the strengths of this standard is its ability to integrate safety into the design framework by outlining essential planning considerations. The requirements that pertain to the appropriate materials, dimensions, and configurations of the sanitary drainage systems contribute significantly to the longevity and reliability of the installations. Furthermore, the document interacts effectively with EN ISO 15749-1 by providing specific enhancements and requirements tailored for sanitary drainage, showcasing its relevance in a broader context of marine technology. Additionally, EN ISO 15749-2:2004 remains highly relevant in contemporary maritime operations as it reflects the latest best practices and technological advancements in marine drainage systems. Its clear guidelines provide industry professionals with a robust foundation to design systems that are not only efficient but also environmentally compliant, further underlining the importance of effective waste management on ships and marine structures. Overall, the standard's detailed approach to the design and implementation of sanitary drainage systems enhances operational safety and efficiency in maritime contexts, reinforcing its status as an essential reference document for professionals engaged in maritime engineering and technology.

EN ISO 15749-2:2004は、船舶および海洋技術における排水システムの設計に特化した標準です。この文書は、重力排水システムにおける衛生用排水ラインの設計に関する基本的な要件を提供しています。特に、船舶や海洋構造物における衛生的かつ効率的な排水管理のための重要な指針を含んでいます。 この標準の強みは、重力排水に特化した分野における明確さと具体性です。衛生排水ラインが船舶や海洋構造物においてどのように設計されるべきか、具体的な要件や推奨事項が提示されています。これにより、設計者やエンジニアは、実際の運用状況に基づいた実用的なソリューションを得られ、効果的に衛生管理を行うことが可能です。 さらに、ISO 15749-2:2004は、船舶の安全基準や環境管理に対する要求に適応した設計指針を提供します。そのため、持続可能な運用を促進し、海洋環境への影響を最小限に抑えて、衛生的なモジュールが確保されます。このことは、船舶や海洋構造物における安全性と運用効率の向上に寄与します。 全体として、EN ISO 15749-2:2004は、船舶および海洋構造物における衛生排水の効果的な設計を支援するための不可欠なドキュメントであり、業界における標準化の重要性を示しています。この標準は、計画と基本要件に関しては、ISO 15749-1も参照することが推奨されており、より包括的な理解を促進します。

Die Norm EN ISO 15749-2:2004 beschäftigt sich mit den Entwässerungssystemen auf Schiffen und maritimen Strukturen, insbesondere mit der Konstruktion von sanitären Entwässerungsleitungen in Schwerkraftsystemen. Der Anwendungsbereich dieser Norm ist von großer Bedeutung, da sie spezifische Anforderungen für die Gestaltung solcher Systeme festlegt, die insbesondere für die Sicherheit und den Betrieb von Schiffen und maritimen Bauwerken entscheidend sind. Ein wesentlicher Vorteil der EN ISO 15749-2:2004 ist die klar definierte Struktur und die umfassende Abdeckung der notwendigen Aspekte zur Planung von Abflussleitungen. Die Norm bietet hilfreiche Richtlinien zur Materialwahl, zu Dimensionierungen und zu Installationspraktiken, die sicherstellen, dass die Entwässerung effizient und zuverlässig funktioniert. Dies minimiert das Risiko von Leckagen und erhöht die Sicherheit an Bord. Zudem ist die Relevanz dieser Norm unbestreitbar, da sie Ingenieuren, Designern und Fachleuten im maritimen Bereich eine solide Grundlage bietet, um die Anforderungen an sanitäre Entwässerungssysteme zu erfüllen. Ihre Anwendung fördert nicht nur die technische Qualität, sondern trägt auch zur Einhaltung regulatorischer Standards bei, die in der Schifffahrtsindustrie von Bedeutung sind. Dank der Verknüpfung mit der Norm ISO 15749-1 ermöglicht die EN ISO 15749-2:2004 eine integrierte Planung, die grundlegende Anforderungen an Entwässerungssysteme umfassend berücksichtigt. Dies erhöht die Effizienz in der Entwicklung und im Bau von maritimen Entwässerungsinfrastrukturen. Zusammenfassend lässt sich sagen, dass die EN ISO 15749-2:2004 ein unverzichtbares Dokument für die Gestaltung und den Betrieb von sanitären Entwässerungssystemen auf Schiffen und in maritimen Strukturen darstellt, da sie wichtige Standards für Sicherheit, Effizienz und regulatorische Konformität bereitstellt.

ISO 15749-2:2004 표준은 선박 및 해양 구조물의 위생 배수 시스템 설계에 대한 중요한 지침을 제공합니다. 이 표준의 범위는 중력 시스템에서의 위생 배수 라인의 설계에 중점을 두고 있으며, 이는 해양 기술 분야에서 매우 중요합니다. 특히, ISO 15749-2:2004는 배수 파이프라인이 효율적으로 작동하도록 하는 데 필요한 기본 요구사항을 규정하고 있어, 각종 해양 구조물의 안전성과 효율성을 보장하는 데 기여합니다. 표준의 강점 중 하나는 중력 배수 시스템을 구체적으로 다루고 있다는 점입니다. 이를 통해 선박 및 해양 구조물의 설계자들은 위생 배수 시스템의 필요성과 기능을 명확히 이해하고, 이를 준수할 수 있는 기준을 설정함으로써 설계의 일관성을 확보할 수 있습니다. 또한, ISO 15749-2:2004는 필요시 ISO 15749-1 표준과 함께 적용하여 계획 및 기본 요구사항을 효과적으로 충족할 수 있도록 지원합니다. 이 표준은 해양 산업에서의 위생 및 환경 기준을 만족시키는 데 매우 중요한 역할을 하며, 해양 구조물의 설계 및 운용에 있어 필수적인 요소로 작용합니다. ISO 15749-2:2004의 준수는 공공 건강과 환경 보호 측면에서도 적절한 조치를 강구하는 데 기여할 수 있습니다. 따라서 이 표준은 선박 및 해양 기술 분야에서 필수적으로 고려해야 할 중요한 기준으로 자리잡고 있습니다.

La norme EN ISO 15749-2:2004 se concentre sur la conception des lignes de drainage sanitaires dans les systèmes gravitaires sur les navires et les structures maritimes. Son domaine d'application est essentiel pour garantir la sécurité et l'efficacité des systèmes de drainage dans le secteur maritime. L'une des forces majeures de cette norme réside dans son approche standardisée pour les systèmes de drainage, qui facilite la compréhension et l'uniformité dans la conception des infrastructures maritimes. Le fait que la norme soit spécifiquement axée sur le drainage sanitaire assure que les exigences en matière de santé et de sécurité sont prises en compte, réduisant ainsi les risques d'incidents liés à la gestion des eaux usées. En outre, la norme EN ISO 15749-2:2004 est particulièrement pertinente dans le contexte des réglementations environnementales croissantes et des exigences de durabilité dans le secteur maritime. Elle fournit des lignes directrices claires qui aident les concepteurs et les ingénieurs à élaborer des systèmes conformes aux meilleures pratiques du secteur tout en respectant les normes écologiques. Il est également important de noter que pour des détails plus avancés concernant la planification et les exigences de base, la norme ISO 15749-1 doit être consultée, ce qui renforce l’intégration et la cohérence entre les différentes normes de drainage. Cela démontre une continuité dans la réglementation qui est cruciale pour les projets de grande envergure dans le domaine maritime. En résumé, la norme EN ISO 15749-2:2004 est un élément clé pour assurer le bon fonctionnement et la sécurité des systèmes de drainage sanitaire dans les navires et structures maritimes. Sa structure bien définie et son alignement avec d'autres normes comme ISO 15749-1 soulignent son importance dans le développement de pratiques durables et responsables dans l'industrie maritime.