CPAchem is an ISO 17034, ISO/IEC 17025 and ISO 9001 accredited producer of certified reference materials, including inorganic (AAS, ICP&ICP-MS, IC) and organic (GC/GC-MS, HPLC/HPLC-MS) standards, volumetric standards, pH and conductivity buffers, turbidity standards, Karl Fischer, TOC and TIC, COD standards and products according to European, US, British, International, Indian, Japanese and Chinese Pharmacopoeias. The accreditation scope of CPAchem is one of the largest ones in the world; more than 7000 laboratories worldwide use our wide range of products.