TY - BOOK ED - American Petroleum Institute, API TI - Manual of petroleum measurement standards. Chapter 9.2: Standard test method for density or relative density of light hydrocarbons by pressure hydrometer U1 - Carpeta IV PY - 2012/// CY - Washington PB - American Petroleum Institute, API KW - Normalización KW - Normas API KW - Densidad KW - Densidad relativa ER -