borosil 2ml 9mm Screw thread vials with pp cap for HPLC. 1.5ml 9mm Short Thread Autosampler Vials ND9 are made of clear Type 1, Class A Borosilicate Glass with a writable label for sample identification. Material: USP Type 1, Class A, 33 Borosilicate Glass Volume: 2ml (standard volume) 1.5ml (actual volume) Application: HPLC and GC system