SPEX CertiPrep has been serving the scientific community since 1954. We are a leading manufacturer of Certified Reference Materials (CRMs) and Calibration Standards for Analytical Spectroscopy and Chromatography. We offer a full range of Inorganic and Organic CRMs. We are certified by DQS to ISO 9001:2015 and are proud to be accredited by A2LA to ISO/IEC 17025:2005 and ISO 17034:2016. The scope of our accreditation is the most comprehensive in the industry and encompasses all our manufactured products.



SPEX SamplePrep is the leader in providing superior laboratory equipment, meeting the needs of scientists for over 50 years.

Our mills, grinders, presses and fusion fluxers have become the industry standard for reliability and durability being used in a variety of analytical techniques including XRF, GC-MS, and QuEChERS.