National Scientific Target 10-425 Screw-Thread Vials National Scientific Septa For High Sensitivity Chromatography Pack. Made from Type I Class A borosilicate glass. Target I-D vials have a ceramic write-on ID patch with graduations at 0.5 1.0 and 1.5mL. Silanized vials help to limit protein adsorption. Inserts are designed for wide-opening 2mL vials. Conical-style Polyspring inserts are available in borosilicate glass or polypropylene. Flat-bottom MicroSerts inserts are made from borosilicate glass. Convenience kits include vials and caps with pre-inserted septa. Preassembled kits have vials with preattached caps and septa. Certified vial kits are tested and certified to meet or exceed up to 17 critical performance parameters; certificate enclosed with kit. National Scientific Target 10-425 Screw-Thread Vials National Scientific C4010-60 Septa For High Sensitivity Chromatography Pack