Cannabis Indica October 12, 2016October 12, 2016 thcscience_admin The main article for this category is Level unit. Pages in category "Units of level" The following 14 pages are in this category, out of 14 total. This list may not reflect recent changes. B Bel (unit)C Cent (music) CentineperD Darwin (unit) Decade (log scale) DecibelH Hartley (unit)L Logarithmic unitsM Major secondN NeperO Octave One-third octaveS Savart Semitone