93a60a57-a4c8-11da-a746-0800200c9a66 Units of mass Technical unit groups Reference Unit Group Data Set of the International Reference Life Cycle Data System (ILCD). 0 2012-01-04T23:33:14.875+09:00 ILCD format 03.00.003 http://openlca.org/ilcd/resource/unitgroups/93a60a57-a4c8-11da-a746-0800200c9a66 t 1000.0 Metric ton kt 2.0E-4 Carat (metric) ug 1.0E-9 Microgram; 1/1000000 g oz av 0.028349523125 Ounce (avoirdupois); commonly used, but NOT for gold, platinum etc. (see "Ounce (troy)") g 0.001 Gram kg 1.0 Kilogram oz t 0.0311034768 Ounce (troy); ONLY used for gold, platinum etc. mg 1.0E-6 Milligram; 1/1000 g long tn 1016.0469088 Long ton; only used for displacement of ships Mg 1000.0 Megagram = 1 metric ton ng 1.0E-12 Nanogram; 1/1000000000 g pg 1.0E-15 Picogram; 10^-12 g lb av 0.45359237 British pound (avoirdupois) sh tn 907.18474 Short ton; some uses in US