2020/7/24 · Jul. 24th, 2020. The 2ml Amber Vials with insert is larger than the 9mm screw sample vial and has a wide mouth. The 2ml crimp auto sample vial features an opening about 40% wider than the standard opening vial. Large openings reduce the risk of autosampler needle bending during sampling. Membrane solution autosampler vial 2ml Amber Vials