We are pleased to announce that the following scientists have become Associate Members of SCOR Working Group 145: Dr Regina Easley of the National Institute of Standards and Technology of the USA, Dr Daniela Stoica of the Laboratoire national de métrologie et d’essai, Paris (France); Dr Frank Bastkowski of the Physikalisch-Technische Bundesanstalt (PTB), Braunschweig (Germany); and Dr Igor Maksimov of the National Metrology Institute of Japan.

These associate members of the Working Group are either making new Harned Cell measurements that contribute to the development of the chemical speciation model (see an earlier 2017 post “Four institutions join the project”), or are engaged in projects that are very closely related to the aims of the Working Group. We are very grateful for their contributions, and those of their institutes.