Standard Practice for Manual Piston Cylinder Sampling for Volatile Crude Oils, Condensates, and Liquid Petroleum Products

Importancia y uso:

5.1 This practice allows the collection of a representative sample of crude oil and/or condensate that may contain trace volatile dissolved components such as methane, ethane, propane, and fixed gases that would normally be lost using conventional atmospheric sampling methods. These highly volatile components can result in vapor pressure conditions above atmospheric pressure. This practice is recommended whenever accurate determination of vapor pressure, flash point, or other properties are required and where loss of volatile components can affect the test results.

5.2 This practice is intended for capturing samples of crude oil and/or condensate for testing for the purpose of classification for transportation of dangerous goods as UN Class 3 Flammable Liquids, but is not limited to classification testing. Other test methods with sensitivities to light end loss may also utilize this sampling practice.

5.3 Practice D3700 using a floating piston cylinder is recommended whenever true vapor pressures greater than 300 kPa at 50 °C are anticipated.

Subcomité:

D02.02

Referida por:

D5854-19A, D5854-19A, D5842-23, D7453-22, D3700-21, D8236-18, D3700-21, D5854-19A, D5842-23, D3700-21, D5854-19A, D8321-22, D8340-22, D6377-20, D6377-20, D3764-23, D3764-23, D6122-23, D6377-20

Volúmen:

05.04

Número ICS:

75.080 (Petroleum products in general)

Palabras clave:

condensate sampling; crude oil sampling; high vapor pressure; live crude oil; manual piston cylinder; sampling;