
Goodfellow provides a comprehensive selection of Certified Reference Materials (CRMs) and Reference Materials (RMs) to support laboratories performing method development, method validation, and routine analytical quality control. These materials are selected and prepared to ensure appropriate levels of homogeneity and stability for their intended analytical applications, providing dependable benchmarks for comparative testing and instrument performance monitoring. The portfolio includes finely divided materials — chips and powders — for chemical analysis, and solid discs and blocks for spectroscopic techniques such as OES and XRF, covering a broad range of ferrous and non-ferrous alloys, ores, slags, and ceramic materials. All certified materials are manufactured and supplied in accordance with ISO 9001 and ISO 17034.