VIALS | AUTOSAMPLER VIALS Vial and Kit Types / Designations Type Description Assembled Kit Caps are already assembled onto the vials Bonded Cap Septa bonded into cap Certified PLUS Designated “Cert+”. Depends on the product and is defined separately as, e.g., “Low Bleed” (caps), “MSQ”, or Mass Spec Quality (caps, vials and kits), etc.