BS EN 4708-203:2022

This standard BS EN 4708-203:2022 Aerospace series. Sleeving, heat-shrinkable, for binding, insulation and identification is classified in these ICS categories:

• 49.035 Components for aerospace construction
• 49.060 Aerospace electric equipment and systems

This document specifies the required characteristics for heat-shrinkable semi rigid polyvinylidene identification sleeves for use in aircraft electrical systems at operating temperatures between -55 °C and 225 °C. This specification is for the characterisation of Identification sleeves only. This sleeving is a semi rigid tough product and is suitable for use where high temperatures and extreme fluid resistance properties are required. It is available with a shrink ratio of 2:1. The product is normally supplied with internal diameters up to 38 mm The standard colours are white, black or yellow For use at temperatures above 200 °C black with white or silver ink is recommended Sizes or colours other than those specifically listed in this standard may be available. These items shall be considered to comply with this document if they comply with the property requirements listed in tables 2 and 3 except for dimensions and mass. As the sleeving to be tested is a printed article the complete system is to be recorded as part of the evaluation. The sleeve will only be considered as meeting the requirements of this specification if printed with the printer, ribbon/inks and settings referenced within the test report. Mark adherence and print permanence are determined in this document using method EN 6059-407.