Latest News

Reporting deadline for G-Probe 25 extended

The new reporting deadline for G-Probe 25 is October 6th

On account of delayed deliveries the deadline for reporting G-Probe 25 results has been moved from 15th September to 6th October.

Note there will be only one round this year. Depending on your requirements, you should have received the phonolite glass, KPho-2G and / or the speleothem nano-pellet KCSp-1NP.

The Round 24 report for the basanite test material, BKWE-1G is 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/

The IAG gratefully acknowledges the major role that Steve Wilson (USGS) has played in initiating, organising and developing the G-Probe programme over many years.

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