.5.2 DATASHEETS:2009 第二部分 相对密度（60/60 华氏度）换算

Provides implementation procedures for conversion of relative density (60/60 °F) to equivalent densities in both in vacuo and in air values. This standard gives the following equivalents for any value of relative density (60/60 °F): — API gravity at 60 °F (old Table 21); — absolute density at 60 °F; — absolute density at 15 °F (old Table 21); — pounds per U.S. gallon at 60 °F in and in air (old Table 26); — U.S. gallons per pound at 60 °F in vacuo and in air (old Table 26); — short tons per 1000 U.S. gallons at 60 °F in vacuo and in air (old Table 27); — U.S. gallons per short ton at 60 °F in vacuo and in air (old Table 28); — short tons per barrel at 60 °F in vacuo and in air (old Table 27); — barrels per short ton at 60 °F in vacuo and in air (old Table 28); — long tons per 1000 U.S. gallons at 60 °F in vacuo and in air (old Table 29); — U.S. gallons per long ton at 60 °F in vacuo and in air (old Table 30); — long tons per barrel at 60 °F in vacuo and in air (old Table 29); — barrels