Invitation for registration – Open
IARMA Environmental Radioactivity Proficiency Test on the Determination of Gross Alpha/Beta in Drinking and Sea Water
EGROSS-PT-2025
Target laboratories: Laboratories working in the field of measurement of gross alpha/beta particle activities in drinking and seawater using an analytical technique for monitoring water supplies for alpha/beta particle activities according to internationally agreed guidelines and limits.
Proficiency test material: The Proficiency Test will consist of 6 water spiked items – 4 drinking water and 2 seawater (from 0.1 to 100 Bq/l). The items can be analysed using Liquid Scintillation / Gas Proportional Counting or using any other radiochemical procedure.
The IARMA environmental radioactivity proficiency tests are conducted according to predefined criteria, for more information please refer to: PT General Procedure and Criteria for environmental radioactivity proficiency tests.
EGROSS-PT-2025 schedule:
| Activity | Target date |
| Participants registration closing date | 15 June 2025 |
| Payment of the PT fees | 15 July 2025 |
| Sample shipment starting date | 15 September 2025 |
| Reporting of analytical results closing date | 30 November 2025 |
| Individual evaluation report | 15 December 2025 |
| Draft of the full report | 31 January 2026 |
Registration: Please fill in the form below and send your purchase order to: office@iarma.co.uk.
EGROSS-PT-2025 fees: The participation fees are £ (GBP) 850 plus VAT (if applicable) which includes samples, individual evaluation report, summary report, PT certificate and sample shipment.
