Standard Test Method was developed, based upon this apparatus. The testing is done in vacuum at stated temperatures for specific times. A number of samples can be tested at one time in the vacuum system. The samples are then loaded into individual compartments in a solid copper bar that can be heated. This causes the volatile materials to be driven off, with their only escape being through the exit port.
Barriers are near the collector plate to prevent cross-contamination between adjacent samples.
In a similar manner, the difference between the weight of a clean collector and of the collector having condensed materials will provide the mass of condensables. This determination is made after the vacuum test is completed and the values for TML and CVCM have been determined. The data presented in the various sections contain GSFC data generated through the present. The outgassing data have been presented in three different ways in order to facilitate material selection. In Section A, the materials are divided by category into the 18 probable uses, such as adhesive, greases, paints, potting compounds, and so forth.