ISO 25861-2007 PDF

Full title and description

ISO 25861:2007 — Ships and marine technology — Navigation — Daylight signalling lamps. This International Standard specifies performance, functional and testing requirements for daylight signalling lamps used for ship navigation in accordance with SOLAS Chapter V and the International Code of Safety for High-Speed Craft, and with the IMO Performance Standards for Daylight Signalling Lamps (MSC.95(72)).

Abstract

ISO 25861:2007 applies to daylight signalling lamps required for certain ships under SOLAS Chapter V and Chapter 8 of the International Code of Safety for High-Speed Craft and establishes requirements consistent with the IMO Performance Standards for Daylight Signalling Lamps (MSC.95(72)), covering functions, luminous intensity, chromaticity, durability, ergonomic controls, electromagnetic compatibility, power supply, maintenance, backup arrangements and type-approval tests.

General information

• Status: Published (confirmed as current following systematic reviews).
• Publication date: December 2007 (First edition, 2007-12).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 47.020.70 (Ships and marine technology — Navigation aids).
• Edition / version: Edition 1 (2007).
• Number of pages: 8.

Scope

The standard applies to daylight signalling lamps required on certain ships and high-speed craft as specified by SOLAS and the International Code of Safety for High-Speed Craft, and it is intended to harmonize equipment performance with the IMO Performance Standards for Daylight Signalling Lamps (MSC.95(72)). It covers required functions and availability, timing (switch-on/off), light intensity and chromaticity, alarms and indications, ergonomics, environmental durability, EMC, power supply and type-approval testing.

Key topics and requirements

• Required functions and operational availability (including switch-on/switch-off behaviour).
• Minimum luminous intensity and photometric testing procedures.
• Chromaticity requirements for emitted light.
• Malfunction reporting, warnings, alarms and indications.
• Ergonomic and operational control design.
• Durability and resistance to environmental conditions (temperature, humidity, shock, vibration).
• Electromagnetic compatibility (EMC) and interference limits.
• Power-supply requirements, backup/fallback arrangements and endurance.
• Maintenance provisions and serviceability.
• Mounting, pan/tilt ranges (where applicable) and type-approval test regimes (luminous intensity, chromaticity, shock, life testing).

Typical use and users

Typical users include ship designers, shipbuilders, manufacturers of marine signalling equipment, classification societies, flag state administrations, port authorities, marine surveyors and installers responsible for ensuring compliance with SOLAS and IMO performance standards; the standard is also referenced in national regulations and type-approval processes.

Related standards

ISO 25861:2007 is related to IMO Performance Standards for Daylight Signalling Lamps (MSC.95(72)) and sits in the ISO/TC 8 (Ships and marine technology) portfolio; ISO 17884 (searchlights for high-speed craft) contains related requirements and the two documents have been noted as candidates for harmonization or consolidation. Several national bodies publish identical/adopted texts (for example as national or national-adopted standards).

Keywords

daylight signalling lamp, daylight signal, marine navigation, SOLAS, IMO MSC.95(72), luminous intensity, chromaticity, type approval, EMC, marine signalling lamp

FAQ

Q: What is this standard?

A: ISO 25861:2007 is an international standard that sets performance, functional and test requirements for daylight signalling lamps used on ships and high-speed craft for visual signalling during daylight operations.

Q: What does it cover?

A: It covers required lamp functions and availability, switch-on/off timing, luminous intensity and photometric testing, chromaticity, alarms and indications, ergonomic controls, environmental durability, EMC, power supply and backup arrangements, maintenance and type-approval testing procedures.

Q: Who typically uses it?

A: Shipbuilders, equipment manufacturers, classification societies, flag administrations, marine surveyors, port authorities and other stakeholders involved in ship equipment procurement, certification and regulatory compliance.

Q: Is it current or superseded?

A: As of the most recent ISO review cycle the 2007 edition has been confirmed and remains the current edition; the ISO record indicates it was reviewed and confirmed during systematic reviews (latest confirmation recorded in 2023).

Q: Is it part of a series?

A: It is part of ISO/TC 8 work on ships and marine technology and is related to other navigation and searchlight standards (for example ISO 17884). There has been commentary within the committee about harmonizing closely related standards into consolidated documents where appropriate.

Q: What are the key keywords?

A: Daylight signalling lamp; marine navigation; SOLAS; IMO MSC.95(72); luminous intensity; chromaticity; type approval; EMC; durability.