. "http://www.iso.org/iso/catalogue_detail?csnumber=31890"^^ . "Mass Concentration of Water"@en . "\\(w = m/V\\), where \\(m\\) is mass of water, irrespective of the form of aggregation, and \\(V\\) is volume. Mass concentration of water at saturation is denoted \\(w_{sat}\\)."^^ . . "w" . . "\"Mass Concentration of Water Valour} is one of a number of \\textit{Concentration\" quantities defined by ISO 8000." . .