ASTM D7777 - 13(2018)e1 Standard Test Method for Density, Relative Density, or API Gravity of Liquid Petroleum by Portable Digital Density Meter.(便攜式數字密度計測定液體石油的密度,相對密度和API度的標準試驗方法)。 IP 559 - 2012 Determination of density of middle distillate fuels - Hand held oscillating U-tube density meter method.(中間餾份燃料 手持振蕩U形管密度計法)。 JJG 1058-2010 實驗室振動式液體密度儀檢定規程。