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2023 G-Probe test material availability

We are expecting to dispatch the test materials for the 2023 G-Probe Rounds 27 and 28 in late March/ early April.
The test materials will be a basanite glass (Round 27) and a nanoparticulate powder pellet of a fossil coral (Round 28). 

Both the G-Probe 26a report for the basalt glass, KBa-1G,
and the G-Probe 26b report for the basalt nano-pellet KBa-1NP,
the test materials for 2022, are available for download.


For enquiries about:

The test material and the G-Probe programme, contact Dieter Garbe-Schönberg: dieter.garbe-schoenberg@ifg.uni-kiel.de​

The delivery of test materials, contact Charles Gowing: cjbg@bgs.ac.uk

The website and reporting results online, contact Peter Webb: gprobe.iag@gmail.com

Payments and subscriptions, contact Chris Jackson: iag-treasurer@virginmedia.com


The G-Probe proficiency testing programme is provided by the International Association of Geoanalysts (IAG): www.geoanalyst.org/

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