Autosampler vials-Aijiren Vials for HPLC/GC. 9mm autosampler vials, clear, with screw caps & septa. Standard GC, HPLC sample vial, small caliber, 8-425 standard threaded mouth, can be used for autosampler and sample storage. It can be used with 8-425 screw cap septum. 8-425 Autosampler Vial, often used in conjunction with Shimadzu