Caffeine OAS 1gm See Certificate 239704 Expiry 25-April-28 ALKALOID SALTS SOLID 6.1 UN1544

Standards from Elemental Microanalysis are traceable to the National Institute of Standards and Technology (N.I.S.T.) Maryland USA and/or (where appropriate) other accredited certification organisations.  These materials are suitable for use as working standards for elemental analysis and are supplied with batch Certificates of Analysis.

A table of standards showing certified values is available in each of our catalogues or to download from the website: https://www.elementalmicroanalysis.com/catalogue-download.php