#69: Selecting HiE or LoE based on emissivity table

Note: Lower emissivity surfaces require more stable conditions than high emissivity surfaces for accurate temperature control. These tables include approximate values, which can vary significantly with surface condition. For best results, install an IRt/c and test. Emissivity data from Heat, Mass, and Momentum Transfer by Rohsenow and Choi (Prentice-Hall, 1961).

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