ISO 24169:2022

Ships and marine technology - Fireproof watertight hatch covers

This document specifies the classification, flagging, requirements, test methods, inspection rules, markings, packaging, transportation and storage of fireproof watertight hatch covers installed on decks (hereafter referred to as “hatch covers”). This document applies to the design, manufacture and acceptance of fireproof watertight hatch covers installed on decks of ships where anticipated water pressure by wave is up to 10 m.

Navires et technologie marine — Panneaux d'écoutille étanches à l'eau et ignifuges

General Information

• Status: Published
• Publication Date: 12-Jan-2022
• ICS: 47.020.10 - Hulls and their structure elements
• Technical Committee: ISO/TC 8/SC 8 - Ship design
• Drafting Committee: ISO/TC 8/SC 8/WG 24 - Hatch covers
• Current Stage: 6060 - International Standard published
• Start Date: 13-Jan-2022
• Due Date: 12-Aug-2022
• Completion Date: 13-Jan-2022

Overview - ISO 24169:2022 (Fireproof watertight hatch covers)

ISO 24169:2022 specifies requirements for fireproof watertight hatch covers fitted on ship decks where the anticipated wave-induced water pressure is up to 10 m. The standard covers classification and designation, design and materials, manufacturing quality, test methods (fire and watertightness), inspection rules, markings, packaging, transportation and storage. It links fire-resistance verification to IMO fire test procedures and provides operational and instrumentation guidance for safe installation and acceptance.

Key topics and technical requirements

• Classification & designation
  • Two shape types: A-type (round) and B-type (square/rectangular).
  • Fire-protection ratings: A-60, A-30, A-0.
  • Clear designation format (type, nominal size, plate/coaming thickness, coaming height).
• Materials & construction
  • Cover plate and coaming: shipbuilding steel or equivalent with minimum tensile strength ~340 N/mm² (per classification society requirements where applicable).
  • Hinges and opening devices have specified minimum tensile strengths.
  • Maximum hatch cover thickness: ≤ 75 mm; design of plate thickness based on water pressure.
• Manufacture & finish
  • Surface quality per ISO 8501-1 (e.g., Sa2½ or St2) and anti-rust primer.
  • Smooth welds, no sharp edges or deformation; moving parts must operate freely.
• Fire testing
  • Fire resistance verified generally in accordance with the IMO Res. MSC.307 (88) - 2010 FTP Code for “A” class fire doors, with additional thermocouple placement on the coaming.
  • Maximum temperature rise along the hatch coaming shall not exceed 180 °C for the test duration.
• Watertightness & pressure testing
  • Water pressure test: hatch installed on a test box and held at 0.10 MPa (5 min) to confirm no leakage.
• Status display & electrical
  • Local and bridge indicators with sound/light warnings (red = open, green = closed); IP rating requirements IP68 on deck (IEC 60529) and IP22 in the bridge.
• Marking, packaging, storage
  • Corrosion-resistant nameplate with product details, manufacturer, year, classification mark.
  • Individual wooden packing with manuals, certificates and spare parts list; horizontal storage, protected from sun/rain/corrosives.

Applications - who uses ISO 24169:2022

• Shipbuilders and naval architects specifying deck hatch systems
• Hatch cover manufacturers and suppliers for design, testing and certification
• Classification societies and surveyors for acceptance and flagging
• Shipowners, operators and repair yards implementing SOLAS/IMO fire-protection measures
• Marine safety inspectors and insurers assessing compliance and risk

Related standards

• IMO International Convention for the Safety of Life at Sea (SOLAS)
• IMO 2010 FTP Code (IMO Res. MSC.307 (88))
• ISO 8501-1 (surface preparation)
• IEC 60529 (IP Code)

ISO 24169:2022 is essential for ensuring deck hatch covers meet combined fire protection, watertightness, and operational safety requirements on ships exposed to wave pressures up to 10 m.

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 24169
First edition
2022-01
Ships and marine technology —
Fireproof watertight hatch covers
Navires et technologie marine — Panneaux d'écoutille étanches à
l'eau et ignifuges
Reference number
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification and designation . 1
4.1 Types . 1
4.2 Structure and main dimensions . . 2
5 Materials . 5
6 Quality of manufacture .5
7 Test . 6
8 Status display . 6
9 Markings, packaging, transportation and storage . 7
9.1 Marking . 7
9.2 Packaging . 7
9.3 Transportation and storage . 7
iii
Foreword
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This document was prepared by Technical Committee ISO/TC 8, Ships and marine technology,
Subcommittee SC 8, Ship design.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
INTERNATIONAL STANDARD ISO 24169:2022(E)
Ships and marine technology — Fireproof watertight hatch
covers
1 Scope
This document specifies the classification, flagging, requirements, test methods, inspection rules,
markings, packaging, transportation and storage of fireproof watertight hatch covers installed on
decks (hereafter referred to as “hatch covers”).
This document applies to the design, manufacture and acceptance of fireproof watertight hatch covers
installed on decks of ships where anticipated water pressure by wave is up to 10 m.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
ISO 8501-1, Preparation of steel substrates before application of paints and related products — Visual
assessment of surface cleanliness — Part 1: Rust grades and preparation grades of uncoated steel substrates
and of steel substrates after overall removal of previous coatings
IEC 60529, Degrees of Protection provided by enclosures (IP Code)
IMO International Convention for the Safety of Life at Sea (SOLAS), 1974, and its Protocol of 1988, as
amended
IMO International Code for Application of Fire Test Procedures, 2010 (2010 FTP Code), Resolution 307(88),
as amended
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Classification and designation
4.1 Types
4.1.1 Based on their shape, watertight hatch covers shall be classified into the two following types:
— A-type (round hatch cover);
— B-type (square or rectangular hatch cover).
4.1.2 According to the fire-protection rating, watertight hatch covers shall be classified into three
levels: A-60, A-30, and A-0.
4.2 Structure and main dimensions
4.2.1 Examples of the structure and main dimensions of A-type hatch covers are shown in Figure 1
and Tab
...