Programme and book of abstracts
11 May 2026
8:00 Registration
9:00 Opening (Eurachem |CITAC |SPQ |FCUL )
Eugenia Totu, Eurachem Chair | Ricardo Bettencourt da Silva, CITAC Vice-Chair | Vânia Calisto, DQA-SPQ Past President | José Nogueira, DQB-FCUL President
Session 1: Evaluation of the measurement uncertainty
Eugenia Totu, Eurachem Chair
9:20 Uncertainty in the measurement process (Steve Ellison) (IL01, Slides)
9:50 Modelling uncertainty across the working range (Ricardo Bettencourt da Silva) (IL02, Slides)
10:15 Trueness-related uncertainty (Vicki Barwick) (IL03, Slides)
10:40 Coffee break & posters
11:00 Breakout sessions 1 and 2
Breakout session 1 How can measurement trueness be tested when various reference materials are available? Facilitators: Vicki Barwick & David Milde | Breakout session 2 How can the variation of the measurement uncertainty with concentration be modelled? Facilitators: Ricardo Bettencourt da Silva & Eugenia Totu |
12:00 Breakout sessions reports
12:30 Lunch
Session 2: Conformity assessment
Ricardo Bettencourt da Silva, CITAC Vice-Chair
13:30 Consumer and producers' risks in compliance assessment (Bertil Magnusson) (IL04, Slides)
14:00 Conformity with multiple parameters (Felipe Lourenço) (IL05, Slides)
14:20 Conformity assessment in the oil and gas industry (Elcio Oliveira) (IL06, Slides)
14:40 Coffee break & posters
15:00 Breakout sessions 3 and 4
Breakout session 3 Conformity with multiple parameters Facilitators: Felipe Lourenço & Steve Ellison | Breakout session 4 Decision rule selection Facilitators: Bertil Magnusson & Elcio Oliveira |
16:00 Posters
16:30 Breakout session reporting
17:00 Closing
20:00 Workshop dinner - Maritime Museum
12 May 2026
9:00 Opening (RELACRE |ForMEQ |SPMet )
Ana Duarte, RELACRE | Alice Mosca, ForMEQ Co-Coordinator | Olivier Pellegrino, SPMet Vice-President
Session 3: Qualitative Analysis
Alice Mosca, ForMEQ Co-Coordinator
9:20 Assessing the performance of qualitative analysis (Ricardo Bettencourt da Silva) (IL07, Slides)
9:50 Validation and quality control of qualitative analysis (Paulo Pereira) (IL08, Slides)
10:15 Validation of the identification of microplastics by micro-FTIR and micro-Raman (Carla Palma) (IL09, Slides)
10:40 Coffee break & posters
11:00 Breakout sessions 5 and 6
Breakout session 5 How detailed should qualitative analysis validation be? Facilitators: Paulo Pereira & Eugenia Totu | Breakout session 6 How useful is the reporting of qualitative analysis uncertainty? Facilitators: Steve Ellison & Olivier Pellegrino |
12:00 Breakout session reporting
12:30 Lunch
Short communications
Parallel sessions
Manuel Matos, ISEL 13:30 - Updates of Handbooks from Nordtest (Bertil Magnusson) (OC01, Slides) 13:45 - The use of collaborative trial in sampling for the validation of measurement procedures (Peter D. Rostron) (OC02, Slides) 14:00 - The Fit for Purpose of Methods in Marine Matrices: The Portuguese Hydrographic Institute approach (Carlos Borges) (OC03, Slides) | Florbela Dias, IPQ 13:30 - Assignment of Self-Certified Reference Values for PhotonAssay using ISO 33405:2024 (Makeen Buckley) (OC04, Slides) 13:45 - Measurement Uncertainty in Chemical and Microbiological Analyses: Implications for Conformity Assessment of Live Bivalves (Helena Maria Lourenço) (OC05, Slides) 14:00 - Metrological Sound Assessment of the Risk of Food Exposure to Nitrate from Consumers of a Public Canteen (Cristina M. Oliveira) (OC06, Slides) |
Session 4: Uncertainty from sampling
Steve Ellison, LGC
14:20 Review what has been achieved in estimation and applications of uncertainty from sampling (UfS) (Nathalie Guigues) (IL10, Slides)
14:40 Identifying the new challenges for Uncertainty from Sampling (Mike Ramsey) (IL11, Slides)
15:00 Coffee break & posters
15:20 Breakout sessions 7 and 8
Breakout session 7 Improving approaches to UfS estimation & VaMPIS* 16:20 - Drafting the report * VaMPIS - Validation of Measurement Procedures that Include Sampling Facilitators: Peter Rostron & Steve Ellison | Breakout session 8 Helping labs work with samplers on VaMPIS & QC 16:20 - Drafting the report Facilitators: Mike Ramsey & Nathalie Guigues |
16:30 Breakout session reporting
17:00 Best poster award (Award coordinator: Mike Ramsey) & Closing