ANSI/N Z39.79-2001
This standard is designed so that the user is required to select specific limits for aparticular exhibition situation. A number of options may be used to meet the standard.This choice will depend in part on (a) the types, characteristics and condition of materialbeing exhibited, (b) local climatic conditions, (c) considerations of human comfort, (d)available technology for environmental control systems, (e) constraints of existingexhibition areas and exhibit cases, and (f) cost considerations. The limits chosen shouldfall within the range of limits recommended in the standard.
