Auramine Stain The kit supplies the stain used in microbiology for the researching of alcohol-acid-resistant bacilli (BAAR) in biological materials. This method highlights the bacteria related to Mycobacteriaceae family and other bacteria that show the same characteristics of alcohol acid resistance ( Nocardia spp., Rhodococcus spp., Corynebacterium spp., Gordonia spp., Tsukamurella spp.)