Nunes, M. JoaoGuiomar Lito, M. J.Camoes, M. FilomenaFilipe, Eduarda2015-12-302015-12-302009XIX IMEKO WORLD CONGRESS: FUNDAMENTAL AND APPLIED METROLOGY, PROCEEDINGS, 2009. - p. 2606-2609978-963-88410-0-1http://hdl.handle.net/10451/21702The first interlaboratory comparison at national level for pH measurement of a primary standard phosphate buffer solution was carried out. The main aim of the exercise was to verify the way laboratories are planning and performing pH measurements and evalapplication/pdfengInstruments & Instrumentationjournal article