Certification papers

Publications relevant to IAG certification

Kane J S, Potts P J, Wiedenbeck M, Carignan J and Wilson S (2003). International Association of Geoanalysts’ Protocol for the certification of geological and environmental reference materials. Geostandards Newsletter, 27, 227-244

Kane J S (2004). Report of the International Association of Geoanalysts on the certification of Penrhyn Slate, OU-6. Geostandards and Geoanalytical Research, 28, 53-80 (plus corrections pp 237-239 of same volume)

Kane J S, Potts P J, Meisel T and Wiedenbeck M (2007). International Association of Geoanalysts’ Protocol for the certification of geological and environmental reference materials: a supplement. Geostandards and Geoanalytical Research, 31, 285-288 

Kane J S and Potts P J (2007). ISO best practices in reference material certification and use in geoanalysis. Geostandards and Geoanalytical Research, 31, 361-378

Kane J S (2010). Experience of the International Association of Geoanalysts as a certifying body. Geostandards and Geoanalytical Research, 34, 215-230, doi: 10.1111/j.1751-908X.2010.00074.x

Kane J S (2015). A review of the IAG GeoPT and certification programmes, their protocols, and the differences between the original and potential modifications to the certification protocol. Geostandards and Geoanalytical Research, 39, 419-432

Thompson M (2015). Is your homogeneity test really useful? Analytical Methods, 7, 1627-1629, DOI: 10.1039/c4ay02762k

Thompson M (2016). A careful look at traceability in chemical measurement. Analytical Methods, 8, 940-941, doi: 10.1039/c5ay02395e

Thompson M (2016). On matrix reference materials characterised by proficiency test. Analytical Methods, 8, 4908-4911, doi: 10.1039/c6ay01215a

ISO Guide 35 (2017). Reference materials – Guidance for characterisation and assessment of homogeneity and stability. International Organization for Standardization (Geneva), 105 pp

Thompson M (2018). A properly developed consensus from a proficiency test is, for all practical purposes, interchangeable with a certified value for a matrix reference material derived from an interlaboratory comparison. Geostandards and Geoanalytical Research, 42, 91-96, doi: 10.1111/ggr.12195

Potts P J, Webb P C and Thompson M (2019). The GeoPT proficiency testing programme as a scheme for the certification of geological reference materials. Geostandards and Geoanalytical Research, 43, 409-418, doi: 10.1111/ggr.12261