The broad spectrum accuracy and reliability you trust with Delvotest is now available in a convenient new test kit perfect for screening individual cows. No tablet required, just add milk to the ampule. Results in 3 hours. Longer kit shelf life. This new test kit delivers the same sensitivity, reliability and security you expect from Delvotest. This test is not intended for NCIMS use. A simple, reliable, and economical test for antibiotic residues in milk. Delvotest detects a broad spectrum of antibiotics—not limited to the penicillin family. Designed for use on the farm or in a laboratory, this standard diffusion test has high sensitivity to most veterinary antibiotics. Results are indicated by color. Self-contained, except for the required block heater, each kit contains individual plastic ampules containing Bacillus stearothermophilus in a solid medium, nutrient tablets(not required for SP-NT), dosing syringe, disposable pipets, tweezers, and instructions. 25 test per box.