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Certified Reference Materials (CRM) are the materials that are characterized to an acceptable standard in terms of identification, quantitation of its ingredients. Reliability of results of chemical analysis largely depends on the reference materials used in analysis. Identification can be by comparison of the properties of the reference materials. Many analytical methods need a reference material of known concentration of purity for quantitation purposes.
Multi component organic standards are pesticides, poly-aromatic hydrocarbon groups (PAHs), volatile organic compounds (VOC) and other multi component organic reference standards. These mixture solutions are prepared in accordance with common methods which are used by accredited laboratories around the world.