BS ISO 6017:2024
Small craft. Automatic watertight ventilation shutdown system
- Standard No.
- BS ISO 6017:2024
- Release Date
- 2024
- Published By
- British Standards Institution (BSI) GB / BSI
- Latest
- BS ISO 6017:2024
- Introduction
Analysis of the core content of the standard
BS ISO 6017:2024 specifies the design and testing requirements for the Automatic Watertight Ventilation Closure System (AWVSS) for small vessels up to 24 meters in length. The system is triggered electrically or hydraulically to automatically seal the vents to maintain buoyancy when the ship is flooded.
System Classification and Technology Comparison
Comparison Dimensions Hydraulic AWVSS Electric AWVSS Trigger Mechanism Water Pressure Sensing (≥35kPa) Sensor (Tilt/Water Level) Test Requirements 3 Minutes Continuous Water Pressure Test 360° Rotation Operation Test + Pressure Test Additional Functions None Manual Override, Emergency Power Interface Protection level Material corrosion protection requirements IP56+ explosion-proof certification
Details of key test requirements
Hydraulic system pressure test
The test needs to be carried out in the following two positions:
1. Standard installation position specified by the manufacturer
2. Maximum tilt angle position (see Figure 1)
Qualification standard: No leakage or permanent deformationElectric system operation test
The test process includes:
• 0°-360° rotation test
• Main power and UPS power switching test
• Opening and closing time recording (see Figure 3 sensor layout)
Material and corrosion protection requirements
- Metal parts: Need to pass ISO 6509-1 (brass) or ISO 14993 (other metals) corrosion test
- Non-metallic parts: must have UV aging resistance (refer to ISO 9093:2020 Appendix C)
- Material combination: must consider electrochemical compatibility
Implementation recommendations and risk warnings
Installation precautions:
1. Closing the vents may cause negative pressure in the engine compartment, causing the risk of structural collapse
2. De-icing equipment is required in cold environments
3. The electrical system should be equipped with a visual/audible alarm deviceMaintenance requirements:
• Functional check is required before each voyage
• All components should be easy to visually check
• Regularly verify sensor accuracy (especially tilt sensor)
Background of Standard Evolution
This standard was first published in January 2024, replacing the original scattered ship watertightness specifications. The main technical updates include:
• Clarifying the UPS power supply requirements for electric systems
• Adding new corrosion test methods for composite materials
• Introducing performance test clauses under rotating conditions
BS ISO 6017:2024 Referenced Document
- IEC 60529:1989 Degrees of protection provided by enclosures (IP code)
- ISO 11812 Small craft — Watertight or quick-draining recesses and cockpits — Amendment 1*， 2024-03-18 Update
- ISO 12216 Small craft — Windows, portlights, hatches, deadlights and doors — Strength and watertightness requirements — Amendment 1
- ISO 12217-1 Small craft — Stability and buoyancy assessment and categorization — Part 1: Non-sailing boats of hull length greater than or equal to 6 m
- ISO 12217-2 Small craft — Stability and buoyancy assessment and categorization — Part 2: Sailing boats of hull length greater than or equal to 6 m
- ISO 12217-3 Small craft — Stability and buoyancy assessment and categorization — Part 3: Boats of hull length less than 6 m
- ISO 14993 Corrosion of metals and alloys - Accelerated testing involving cyclic exposure to salt mist, dry and wet conditions
- ISO 6509-1 Corrosion of metals and alloys - Determination of dezincification resistance of copper alloys with zinc - Part 1: Test method
- ISO 8846 Small craft — Electrical devices — Protection against ignition of surrounding flammable gases*， 2025-12-03 Update
BS ISO 6017:2024 history
- 2024 BS ISO 6017:2024 Small craft. Automatic watertight ventilation shutdown system
