International Association of Geoanalysts - GeoPT



Latest News

GeoPT51/51A test materials have been distributed: closing date for this round 15th June

The test materials for the Spring round of GeoPT have been dispatched, and if not with you already, they should soon be in your possession. Our anticipated date for closure of this round is Wednesday 15th June.

Our 25th Anniversary Workshop held online at the end of September '21 was very successful. We found it refreshing to be able to communicate directly with many of you and valuable to receive your queries and comments.

The report for the Autumn '21 round of GeoPT, involving the calcified sediment, CSd-1, is available for download.

To celebrate the 25th anniversary of the GeoPT programme, Geostandards and Geoanalytical Research will be publishing a special thematic issue of research papers covering issues directly related to the GeoPT programme.

For enquiries about:

The programme and the website, contact Peter Webb:

Delivery of test materials, contact Charles Gowing:

Payments and subscriptions, contact Chris Jackson:

The GeoPT proficiency testing programme is provided by the International Association of Geoanalysts (IAG):

GeoPT Account Number

Login ID



You are required to have authorisation from GeoPT before you proceed and you are strictly limited to the use set out within that authorisation. Unauthorised access to or misuse of this system is prohibited and constitutes an offence under the Computer Misuse Act 1990.
Your use of this website is subject to the terms and conditions of participation in GeoPT. By continuing you imply your acceptance of these terms and conditions.

Not yet a member?     Read about GeoPT here.    

If your contact details have changed please update them. If your contact status or that of your colleagues has changed please email us, quoting your GeoPT account number.

International Association of Geoanalysts - GeoPT
British Geological Survey
Environmental Science Centre
Nicker Hill
NG12 5GG
Telephone: +44 (0)115 936 3345

Version: 1.09