... 1) β-lactamase colloidal gold rapid test strip (Including 1.5ml graduated tube with tablet, test strip, dropper, desiccant) ... preparation 1). Unseal the package ofβ-lactamase test strip, take out the 1.5ml graduated tube ... milk sample into gold Micro-well to test, 4. Test procedure 1) Unseal the package, take ... insert the test strip into gold micro-well (Put the end without yellow line into the micro ...