SIST EN 3745-602:2008

Overview

EN 3745-602:2008 is a European aerospace test method published by CEN and prepared by ASD-STAN. The standard specifies a toxicity test intended to determine the concentration of specific gas components released in smoke from aircraft optical cable insulation materials. It is explicitly intended for use together with EN 3745-100 (General) and follows the method set out in EN 3475-602 for toxicity.

This standard supports material evaluation, safety assessments and regulatory compliance for optical fibres and cables used in aircraft environments.

Key Topics

• Scope: Defines the purpose of the toxicity measurement for smoke produced by cable insulation materials; used in the assessment of airborne gas concentrations following combustion or decomposition.
• Normative references: Requires application with EN 3745-100 (General) and aligns with EN 3475-602 (toxicity for electrical cables). These referenced documents are indispensable for correct application.
• Method relationship: The toxicity determination method is in accordance with EN 3475-602, ensuring consistency across aerospace cable testing practices.
• Regulatory context: Approved by CEN and intended for adoption as a national standard by member bodies; prepared under the ASD-STAN committee for aerospace and defence industries.

Applications

EN 3745-602:2008 has practical value across multiple stages of aerospace product development and supply chain management:

• Material selection: Helps OEMs and suppliers compare cable insulation options based on the composition of smoke gases released under test conditions.
• Safety assessment: Informs risk analysis for smoke and toxic gas exposure in aircraft cabins and equipment bays, supporting airworthiness considerations.
• Regulatory and procurement compliance: Provides documented, repeatable test methods useful for contract specification, certification evidence and supplier acceptance.
• Design and R&D: Supports research into low-toxicity insulation formulations and mitigation measures.
• Quality assurance: Can be integrated into vendor qualification and in-service evaluation programs where smoke toxicity is a concern.

Related Standards

• EN 3745-100 - Aerospace series - Fibres and cables, optical, aircraft use - Test methods - Part 100: General (must be used together with EN 3745-602).
• EN 3475-602 - Aerospace series - Cables, electrical, aircraft use - Test methods - Part 602: Toxicity (method alignment).
• ASD-STAN and CEN normative documents and national adoptions relevant to aerospace cable testing.

For implementation, users should refer to the normative references cited in EN 3745-602:2008 and coordinate testing with accredited laboratories familiar with aerospace cable smoke and toxicity assessment. The standard provides a framework to improve safety, ensure consistent results and support compliance activities without prescribing additional technical details beyond its scope.