Vapor Pressure of Crude Oil & Petroleum Products


This test is done to determine the total vapor pressure exerted in vacuum by air-containing, volatile, liquid petroleum products, including automotive spark-ignition fuels with or without oxygenates. This test method is suitable for testing samples with boiling points above 0°C (32°F) that exert a vapor pressure between 7 kPa and 130 kPa (1.0 psi and 18.6 psi) at 37.8°C (100 F) at a vapor-to-liquid ratio of 4:1. Measurements are made on liquid sample sizes in the range from 1 mL to 10 mL. No account is made for dissolved water in the sample. 
Another test is done to determine the vapor pressure exerted in vacuum by volatile, liquid petroleum products, hydrocarbons, and hydrocarbon-oxygenate mixtures. This test method is suitable for testing samples with boiling points above 0°C (32°F) that exert a vapor pressure between 7 and 150 kPa (1.0 and 21 psi) at 37.8°C (100°F) at a vapor-to-liquid ratio of 4:1. The liquid sample volume size required for analysis is dependent upon the vapor-to-liquid ratio chosen and the measuring chamber volume capacity of the instrument.

  • Conforms to ASTM D5188, D5191, D6377, D6378 and related specifications
  • Fast, automated analysis with intuitive 8” color touchscreen interface
  • Integrated sample shaker with locking mechanism
  • Outputs LIMS, network/ticket/full-page printer, and USB A & B
  • Storage capacity for more than 50,000 analysis
  • Fully automatic sample introduction via internal piston and valving; for use with siphon tube, syringe, or pressurized cylinder

Benchtop vapor pressure analysis for crude oil, gasoline, jet fuel, and solvents with one-button operation. Sample is injected into a nickel-plated aluminum chamber, cooled or heated via a Peltier thermoelectric device. A high-resolution pressure transducer continuously monitors and compensates for variations over a 0-1000 kPa range. The system is managed by an integrated touchscreen that  guarantees fast response to user input, even when operating with heavy PPE gloves.

  • Conforms to the specifications of: ASTM D5188, D5191, D6377, D6378; EN 13016-1, EN 13016-2; GB/T 8017; IP394, IP409;  JIS K2258-2, SH/T 0769, SH/T 0794, SH/T 2932
  • Excellent correlation to: ASTM D323 (wet Reid), D4953 (dry Reid), D5482
  • Application fuel specification:  ASTM D910, D1655, D4814, D6227; EN 228; CARB 13CCR 2297
  • Measurement Time: 5 minutes for standard methods
  • Temperature Range: 0 to 100°C (32 to 212°F)
  • Temperature Stability: ± 0.01 °C (0.02 °F)
  • Pressure Range: 0 to 1000 kPa (0-145 psi)
  • Pressure Resolution: 0.01 kPa (0.0014 psi)
  • Sample Volume: 1 mL sample volume for VP methods, 0.25 mL for V/L method
  • Vapor/Liquid Ratio: 0.2:1 to 100:1
  • Interfaces: USB, RS232, Ethernet

85 - 264VAC, 47 - 63Hz, 130W

LxWxH : 11.5 x 11.5 x 15.5 in (30 x 30 x 40 cm)
Net Weight: 25 lbs (11.4 kg)

  • Line Cord
  • Shipping Case
  • Waste Disposal Container
  • Piston Oil, 125 mL bottle
  • Sample inlet assembly
  • Mesh Filter Set, 100 & 200 microns (2 each)