One-step Meatsafe B-Lactam drug residue test for the detection of residues in the urine of cattle treated with ampicillin, amoxicillin, cloxacillin, hetacillin and penicillin G. The Meat Safe B Lactam Test identifies animals which will pass tissue residue tests administered by USDA Food Safety Inspection Service. Negative sample will show a light blue line next to a dark blue line; Positive sample will show two dark blue lines. For use on live animals. Store at 50°–86°F. Do not open until ready to use; exposure to air will damage unused tests.
