HPLC clear 2ml vial with label manufacturer vwr. 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)