Solid fuels - Determination of chemical composition of fuel ash - Part 8: Determination of soda and potash (Na<(Index)2>O, K<(Index)2>O) contents— 4 стр.
Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method (ISO 5725-2:1994 including Technical Corrigendum 1:2002)— 97 стр.