"" . "2007-11-21 17:19:40.0" . "mole_fraction_of_xylene_in_air"@en . "Mole fraction is used in the construction mole_fraction_of_X_in_Y, where X is a material constituent of Y."@en . "2007-11-21 17:19:40.0" . . . "SDN:P07::CFV7N59" . . . . . "1" . "SDN:P07::CFV7N59" . "1" . "false" . "SDN:P07::CFV7N59" . . "accepted"@en . .