Jan 22, 2017 · Superior quality 33 expansion borosilicate clear glass Type 1, Class A or 51A amber glass. EXW price glass 1.5mL 9-425 Screw Neck Vial with patch price 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.