| 1. | Standard test method for api gravity of crude petroleum and petroleum products hydrometer method 原油和石油产品api比重的标准试验方法 |
| 2. | Crude petroleum and liquid petroleum products - laboratory determination of density - hydrometer method 原油和液体石油产品密度实验室测定法密度计法 |
| 3. | Crude petroleum and liquid petroleum products . laboratory determination of density . hydrometer method 原油和液体石油产品.密度的试验室测定.密度计法 |
| 4. | Crude petroleum and liquid petroleum products - laboratory determination of density - hydrometer method 原油和液体石油产品.密度的实验室测定.石油密度计法 |
| 5. | Standard test method for specific gravity , api gravity , or density of cutback asphalts by hydrometer method 用比重计法测定稀释沥青比重api比重或密度的标准试验方法 |
| 6. | Liquefied petroleum gas and light hydrocarbons - determination of density or relative density - pressure hydrometer method 液化石油气和轻质烃类.密度或相对密度的测定.压力石油密度计法 |
| 7. | Liquefield petroleum gas and light hydrocarbons . determination of density or relative density . pressure hydrometer method 液化石油气和轻质烃类.密度或相对密度的测定.压力石油密度计法 |
| 8. | Crude petroleum and liquid petroleum products - laboratory determination of density - hydrometer method iso 3675 : 1998 ; german version en iso 3675 : 1998 原油和液体石油产品.密度实验室测定.密度计法 |
| 9. | Standard test method for density , relative density specific gravity , or api gravity of crude petroleum and liquid petroleum products by hydrometer method 比重计法测定原油和液态石油产品的密度相对密度和api燃油比重 |
| 10. | Liquefied petroleum gas and light hydrocarbons - determination of density or relative density - pressure hydrometer method iso 3993 : 1984 ; german version en iso 3993 : 1995 液化石油气和轻质烃类.密度或相对密度的测定.压力液 |