16/11/2018 · ADDITIONAL INFORMATION. Part number 186000307C comes with 100 12x32 mm (2 mL) screw neck vials and 100 caps with PTFE/silicone preslit septa. Part 186000307C is LC/GC-certified. It does not have the same level of testing as that with 600000668CV, which are LC/MS-certified.