Screw neck vial, N 9, 11.6x32.0 mm, 0.3 mL, inner cone, PP amber Plastic vials are used in ion chromatography, for heavy metal analysis, for polar (e.g. proteins) or pH-sensitive samples and AAS, CE applications. Perkin Elmer 0.3ml. Micro-Vial,. 31.5 x 5