Group requirements are intended to show correlation against response measured in nonstandard Army testing configurations. For example, the groups defined in this Standard define property regions from bonded single-lap-joint tensile tests with performance in bonded armor configurations tested against ballistic threats. Grouping assignments/ categorizations of adhesives are intended to be amendable as Army needs change or are further refined. The grouping assignment/categorization is independent of the adhesive's chemical, processing, application, and property data and is based exclusively on single-lap-joint tensile data and performance. Multiple grouping assignments/categorizations for a given adhesive are possible under this convention. Therefore, an adhesive could potentially be assigned simultaneous highand low-priority groups in differing Standards, depending on the chemical, processing, application, or property data used in the specific correlation. For example, adhesive requirements for armor and munitions have different properties. Therefore, evaluation places different weights on distinct performance characteristics. Grouping requirements/categorizations are specified using conventionally accepted testing standards, which are elaborated upon further within this Standard. The intention is to facilitate communication of U.S. Army-specific property requirements for research and development to industry, as well as academia.