Sample Vial 10 Ml found in: Sample Tubes wth Printed Graudations, 96 Position Round Hole Sample Rack for Oils Applications, 10 mL Vials, Sample Tubes, 40.. Samples will not leak when closed properly Specially-designed hinged cap keeps your fingers away from the lid and the sample and reduces contamination Cap stays up when open, down when closed; and has a rough surface for marking with