SIST EN 2591-316:2001

Overview

EN 2591-316:1997 - part of the CEN Aerospace series - specifies a method for determining the effect of ozone on elements of electrical and optical connection. Intended to be used together with the general requirements in EN 2591, this test-method standard supports assessment of connector materials and assemblies for ozone resistance in aerospace applications. Keywords: EN 2591-316, ozone resistance, aerospace connectors, test methods, electrical and optical connection elements.

Key topics

Based on the standard scope and the structure commonly used in the EN 2591 series, EN 2591-316 addresses the following technical topics:

• Scope and normative references - relationship with EN 2591 and other relevant documents.
• Test purpose and applicability - defining which electrical and optical connection elements are covered.
• Specimen preparation and conditioning - sample selection and pre-test handling consistent with aerospace testing practice.
• Ozone exposure procedure - a controlled method to expose connector materials to ozone to simulate environmental attack (the standard specifies the exposure method rather than general environmental parameters).
• Evaluation and acceptance criteria - criteria for assessing the effect of ozone on appearance, mechanical integrity and continued electrical/optical performance, to determine pass/fail.
• Reporting requirements - test records, observations and conformity statements required for procurement, qualification or certification.

Applications

EN 2591-316 is practical and directly relevant for:

• Aerospace manufacturers qualifying electrical and optical connectors and cable assemblies for service environments where ozone exposure is a concern.
• Test laboratories performing environmental resistance testing and producing compliant reports for aerospace customers.
• Supplier quality and product engineering teams using an agreed test method for material selection, design verification and batch acceptance.
• Procurement and certification bodies that require standardized evidence of ozone resistance for parts used in aircraft and spacecraft electrical systems.

Who uses this standard

Typical users include connector and harness manufacturers, aerospace OEMs, environmental test houses, materials engineers and qualification engineers working to ensure reliability of electrical and optical connection elements under ozone exposure.

Related standards

• EN 2591 (general series) - to be used together with EN 2591-316 for full test method application.
• Other environmental and connector standards (refer to EN 2591 normative references for specific links).

Using EN 2591-316 helps organizations establish consistent, documentable ozone-resistance testing for aerospace electrical and optical connectors, improving durability, safety and compliance.