oil analyzer / LPG / pressure / automatic

Online Vapor Pressure Testing at its best

This model makes eralytics’ vapor pressure tester ERAVAP available for online vapor pressure testing. It measures according to the latest standards such as ASTM D6378, D6897, and D6377 including its CCQTA modification. Communication protocols include analog and digital I/Os and Modbus. Multiple sample input streams make it a versatile tool for refineries, blending stations and terminals.

Standard Compliant Online Vapor Pressure Testing

ERAVAP ONLINE fully complies with latest vapor pressure standards such as ASTM D6377 for the measurement of crude oil, ASTM D6378 for the measurement of gasoline and ASTM D6897 for the measurement of LPG. All three standards are based on the Mini-Method measurement principle where a piston, containing a pressure sensor, is used to expand the headspace above the liquid. Heating the sample to the measurement temperature at a specified vapor to liquid ratio gives you the vapor pressure of the liquid.
ASTM D6378 offers the advantage over the commonly used ASTM D5191 method, that no sample preparation at all is needed. This fact makes the online vapor pressure testing of gasoline easier and therefore more reliable.