Table 7.14 LENGTH, Equivalence class membership

Remove italics from "ANGSTROM", "ASTRONOMICAL_UNIT", "FOOT", "LIGHT_YEAR", "MILE", "NAUTICAL_MILE", and "PARSEC".

Table 7.14 MASS, Equivalence class membership

Remove italics from "KILOPOUND", "LONG_TON", and "TON".

Table 7.14 MASS_FRACTION, Equivalence class membership

Remove italics from "PPB_MASS_FRACTION", "PPM_MASS_FRACTION", "PPTH_MASS_FRACTION", and "PPT_MASS_FRACTION".