This document is intended to be used for all types of infrared interference filters and coatings. It is anticipated that most of the coatings/filters covered by this document will not include specialized characteristics such as fluorescence, high energy handling properties, conduction, etc. However, specialized characteristics as those mentioned, or those in which more exacting performance capabilities are needed can be imposed by the generation of additional specification sheets that include the desired specific properties. The primary requirement on the specification sheet is the spectral characteristic of the filter or coating. However, requirements in addition to spectral requirements may be added, if needed. The specification sheet in conjunction with the general document will then adequately specify the required filter and/or coating.