MSFC-RPT-653 REV A

Abstract

This document contains a brief description of the MLI designs utilized for the Spacelab module, the Spacelab transfer tunnel and the OFT pallet as well as a list of materials used for each design and specifications and properties for some of the materials. The data is not all inclusive, i.e., other MLI design and assembly techniques or materials may be available that will perform successfully. Although only MLI is discussed in this document, other classes of insulation such as fiberglass, viton, etc, are permissible for use on Spacelab. Such classes might be used in cases where on-orbit thermal control requirements are not stringent, in cases where equipment is located in a pressurized volume, or when equipment thermal protection is desired primarily for ground operations or for the ascent/descent phases of flight. This document does not give recommendations or preference concerning materials used. The final design must be determined by the particular application. Each design however must meet the flammability in air requirements of NHB 8060. LA (Flammability, Odor, and Offgassing Requirements and Test Procedures for Materials in Environments that Support Combustion), and outgassing requirements by SP-R-0022A (Vacuum Stability Requirements of Polymeric Material for Spacecraft Application).