Delvotest Cattle Penicillin 5 ppb Control, 6-Pack

Delvotest Penicillin 5 ppb Control, Box of 6 Vials Controls are an important component of any testing to ensure correct results. Gives you the assurance you need for the validity of your milk testing. Positive or negative controls available. (The positive control contains pencillin G at 5 ppb.) 6 count box.