VIALS & CAPS - Lab. Short thread vials and micro-vials ND9 can be used on almost all autosamplers. You can replace other 1.5 ml vial types (e.g. 11 mm crimp neck vials, 8-425 and 10-425 screw neck vials), which can help rationalise stocks. Properties • 1st hydrolytic class glass • In clear and amber glass • With various bottom shapes.