National 12 96mm Glass Vials for Automated TOC Analyzers are available in open top or screw-thread designs. Shop Thermo Scientific™ National 12 × 96mm Glass Thermo Scientific™ National 12 × 96mm Glass Vials for Automated TOC analyzers: Autosampler Vials and Vial Sets Autosampler Vials, Caps, and Closures | Fisher Scientific