The citation is designated as a report of compatibility when results of the original article indicated one or more of the following criteria were met:

1. Physical or visual compatibility of the combination was reported (no visible or electronically detected indication of particulate formation, haze, precipitation, color change, or gas evolution)
2. Stability of the components for at least 24 hours in an admixture under the specified conditions was reported (decomposition of 10% or less)
3. Stability of the components for the entire test period, although in some cases it was less than 24 hours, was reported (time periods less than 24 hours have been noted)