Overview
SIST EN 304 113 V1.1.1:2026 specifies the technical requirements and test methods for maritime satellite Emergency Position Indicating Radio Beacons (EPIRBs) used on non-SOLAS vessels. This European standard is essential for manufacturers, testing laboratories, and maritime operators who need to ensure compliance and reliable performance of EPIRBs in marine distress situations. The document addresses the construction, testing, and operational characteristics of battery-powered portable EPIRBs that operate on the COSPAS-SARSAT satellite system (406.0 MHz to 406.1 MHz), 121.5 MHz homing frequency, and AIS1 (169.975 MHz) and AIS2 (162.025 MHz) transmissions. Only category 2 beacons in class 2 (-20°C to +55°C), as defined by relevant COSPAS-SARSAT standards, are covered.
Key Topics
- Minimum Performance Requirements: Defines essential performance and safety features for EPIRBs, including activation conditions, indicator systems, battery life, and labeling requirements.
- Operational Frequencies: Covers technical characteristics for transmission on 406 MHz (COSPAS-SARSAT), 121.5 MHz (homing), and AIS frequencies.
- Environmental and Functional Testing: Describes rigorous testing procedures, such as drop, vibration, saltwater spray, watertightness, temperature cycles, and solar radiation to guarantee the resilience and robustness of EPIRBs in maritime environments.
- Self-Test and Identification: Outlines requirements for self-test functions and unique device identifiers, including Hex ID and AIS self-ID, to support search and rescue operations and facilitate device management.
- Battery and Safety Precautions: Provides standards for battery endurance, safe operation, labeling, and reverse polarity protection to ensure reliability and crew safety.
- Labelling and Documentation: Specifies information and markings required on EPIRBs and associated documentation to aid proper installation, operation, and maintenance.
Applications
The standard is highly relevant for organizations and professionals in the maritime industry, particularly those working with non-SOLAS vessels (such as fishing boats, recreational craft, and small commercial vessels). Practical applications include:
- Design and Manufacture: Assists manufacturers in developing EPIRBs that meet European legal and operational requirements, particularly for portable, battery-powered units.
- Product Certification: Provides testing laboratories with standardized methods for verifying EPIRBs’ compliance, crucial for market approval and operational readiness.
- Maintenance and Inspection: Supports maritime operators, inspectors, and service agents with clear criteria to select, maintain, and ensure ongoing compliance of EPIRBs.
- Emergency Preparedness: Ensures that equipment used by non-SOLAS vessels meets strict functional and environmental criteria, helping improve safety and effectiveness in maritime rescue operations.
- User Guidance: Helps operators understand required marking, operational instructions, and proper usage to reduce risk and false alarms.
Related Standards
- COSPAS-SARSAT C/S T.001: Specifications for first-generation distress beacons.
- COSPAS-SARSAT C/S T.018: Specifications for second-generation beacons.
- IEC 61097-2: Maritime navigation and radiocommunication equipment and systems - General requirements for satellite EPIRBs.
- ETSI EN 302 152: Covers technical requirements and testing for other maritime personal locator beacons.
- SIST EN 60945: Marine navigation and radiocommunication equipment - General requirements.
Conclusion
SIST EN 304 113 V1.1.1:2026 is a vital reference for ensuring the safety, effectiveness, and legal compliance of non-SOLAS maritime EPIRBs. By providing clear technical benchmarks and robust testing protocols, it supports enhanced performance and interoperability in maritime search and rescue communications. For best practices and conformance, stakeholders should regularly consult this standard along with relevant COSPAS-SARSAT and European references.
