ASTM D4052 - 22 Standard Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter (数字密度计测定液体密度,相对密度和API度的试验方法) 。 ASTM D5002 - 22 Standard Test Method for Density and Relative Density of Crude Oils by Digital Density Analyzer (数字密度分析仪用原油密度和相对密度的测试方法)。 ASTM D1250 - 19e1 Standard Guide for Use of the Petroleum Measurement Tables (石油测量表)。 ASTM D5931 - 20 Standard Test Method for Density and Relative Density of Engine Coolant Concentrates and Aqueous Engine Coolants by Digital Density Meter (用数字密度计测定发动机冷却液浓缩物和含水发动机冷却液密度和相对密度的标准试验方法)。 ASTM D8188 - 23 Standard Test Method for Determination of Density and Relative Density of Asphalt, Semi-Solid Bituminous Materials, and Soft-Tar Pitch by Use of a Digital Density Meter (U-Tube) (用数字密度计测定沥青、半固态沥青材料和软沥青密度及相对密度的标准试验方法)。 EN ISO 12185:1996 Crude petroleum and petroleum products — Determination of density — Oscillating U-tube method (原油和石油产品-密度测定-振荡U形管法)。 EN ISO 15212-1:1999 Oscillation-type density meters — Part 1: Laboratory instruments (振荡型密度计 第1部分: 实验室仪器)。 BS ISO 18301:2014 Animal and vegetable fats and oils — Determination of conventional mass per volume (litre weight in air) — Oscillating U-tube method (动植物脂肪和油 每体积常规质量(空气中升重量)的测定 振荡U管法)。