Wheaton crimp HPLC sample vials online-Aijiren Sample Vials Home » News » HPLC Septa Cap » 9mm septa cap for 1.5ml vials Wheaton ND9mm screw vial-Aijiren Vials for HPLC/GC 9mm screw HPLC vial package. 1.5ml 9mm Screw Neck Vial for automatic samplers is made of low metal type 33 and 51 COE borate glass to prevent sample instability or leaching.