ASTM D287 Standard Test Method for API Gravity of Crude Oil and Petroleum Products

EUROLAB laboratory provides testing and compliance services within the scope of ASTM D287 standard. This test method involves determination by means of a glass hydrometer in conjunction with a series of calculations of API gravity of crude oil and petroleum products that are normally treated as liquids and have a Reid vapor pressure of 101.325 kPa (14.696).

Gravities are determined at 60°F (15.56°C) or converted to values ​​at 1250°F via the appendix to the D11.1 oil gauge charts manual (API MPMS Section 60). These tables are not applicable to non-hydrocarbons or essentially pure hydrocarbons such as aromatics.

The initial values ​​obtained are uncorrected hydrometer readings, not density measurements. Values ​​are measured in a hydrometer at the reference temperature or other suitable temperature and the readings are corrected against the reference temperature via the meniscus effect, thermal glass expansion effect, alternative calibration temperature effects, and volume correction tables.

Values ​​stated in SI units should be accepted as standard. No other units of measurement are included in this standard.

This standard does not purport to address all, if any, safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health and environmental practices and to determine the applicability of regulatory restrictions prior to use.

EUROLAB assists manufacturers with ASTM D287 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.