With PTFE lined cap TOC low level <10ppb TOC background Pack: 12 EP Scientific. The only low-level certified vials in the market for Total Organic Carbon testing and sampling. Major TOC instrument manufacturers use and recommend these vials. Vials cleaned certified and ready to use. Each lot of vials is tested and certified to contribute less than 10ppb TOC as background. Certificate of Analysis included. Applications: • USP Method 643 Testing. • Off-line and grab sampling of high purity water. • 40ml vials fit most automated TOC instruments. • Low background is perfect for preparation and storage of standards. • Cleaning validation is simplified and costs are reduced by using the TOC method of testing. • Our vials are ideal for this sensitive application
