Apr 10, 2020 · According to different factors, Hawach sample vial can be divided into different categories. 1). Due color, the vial can falls into: transparent, brown (brown is mainly used to. 2). Due volume: 2ml, 10ml, 20,ml 40 ml; 3). Due diameter: 8mm, 9mm (8-425/9-425 are thread ports), 11mm is clamp/bayonet; 4).