Comprehensive selection of organic, inorganic analytical standards and certified reference materials (CRM). The quality system of the manufacturers is ISO 9001 certified and ISO 17034 and ISO / IEC 17025 accredited. Line of inorganic standards equivalent to those of the main instrumentation manufacturers: AA, ICP-OES, ICP-MS, IC Ion Chromatography . Organic standards for environmental, food, petroleum applications: GC, GC-MS, LC, LC-MS . A wide range of standards dedicated to chemical and physical properties is available : TOC, TIC, COD, BOD, pH, Conductivity, Turbidity, Residual Chlorine, Phenols, Alkalinity, Hardness, Color, Brix, Redox, Petroleum. We are also able to supply standards and certified mixtures customized according to the analytical needs dictated by your laboratory activities.