About

About ASI Standards ASI Standards is an independent ISO 17034 accredited producer of certified reference materials for the elemental analysis of petroleum products, polymers, and lubricants. We offer a full range of customizable calibration and check standards for sulfur, nitrogen, chlorine, and metals in fuels and lubricant matrices. Common analytical techniques we provide standards for are WD-XRF, ED-XRF, ICP-OES, Titration, and combustion analysis. We also have an in house R&D team to work with clients to develop custom reference materials for your unique application.