Can aides be used inside the booth to hold samples?
Yes. Some industry specifications and test procedures actually specify the use of such viewing aides. AATCC Evaluation Procedure 9 is one such example. Viewing aides, such as Multi-angle tables and single angle easels, should be the same color as the booth (i.e., Munsell N7), not interfere with the lights by casting shadows on the sample to be viewed, and should be easy to remove. GTI offers such viewing aides in a number of sizes to fit its wide variety of viewing booths.
