The Triple Expansion Principle serves as the foundation for the instrument's vapor pressure determination design. Determine the dissolved partial pressure of the air and the dissolved pressure of the air in the sample by injecting a known-volume sample into a temperature-controlled measuring room with a piston inside, sealing the measuring room, and expanding the sample's volume X times in three steps. After each expansion step, measure the total pressure. After that, measure the total pressure at the temperature after raising it to a specific level.
- Fully Automatic: The associated result will show on the screen after choosing a measurement technique.
- Small Sample Size: 1 mL of sample is required for the test, and 2.5 mL of sample is needed for each rinse to avoid contamination (3 times each cycle).
Industrial Touch Screen User Interface
- 7-inch Color Touch Screen is built with USB & Network Connections
- RS232 interface for connection to the Thermal Printer
- USB interface for connection with a mouse or a storage device
- Internet (Ethernet) Line
Software Capabilities
- Standard test methods are preprogrammed, while user-defined test programs can be constructed.
- After the test is completed, the results will show on the screen automatically.
- Ability to monitor numerous temperature points in increments as little as 0.1 °C and up to 100 points
- Built-in storage of up to 1,000 test results
Specifications
- Pressure Resolution: 0.01 kPa
- Sample Volume: 1 mL (2.5 mL rinse - 3x per cycle)
- Vapor/Liquid Ratio: 0.02/1 to 4/1
- Interfaces: USB, RS 232, Ethernet
- Excellent Correlation to: ASTM D323, D4953; EN 13016-1; IP394, JIS K2258-2; SH/T 0794; SH/T 0769; GB/T 8017; SN/T 2932
- Temperature Range: 0 to 120 °C (30 to 250 °F)
- Temperature Stability: +/- 0.1 °C
- Pressure Range: 0 to 1000 kPa (0 to 145 psi)
ASTM D5191 to calculate the vapor pressure that volatile, air-containing liquid petroleum products—such as automobile spark-ignition fuels with or without oxygenates—exert in a vacuum.
This method can be used to test samples with boiling points higher than 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) with a 4:1 vapor-to-liquid ratio. Liquid sample sizes between 1 and 10 milliliters are measured. Water that has dissolved in the sample is not taken into consideration.
ASTM D6378- To calculate the vapor pressure exerted in vacuum by volatile, liquid petroleum products, hydrocarbons, and hydrocarbon-oxygenate mixes.
This test technique is appropriate for evaluating substances with boiling points above 0 °C (32 °F) and a vapor pressure of 7 to 150 kPa (1.0 to 21 psi) at 37.8 °C (100 °F) with a vapor-to-liquid ratio of 4:1. The specified vapor-to-liquid ratio and the instrument's measurement chamber volume capacity determine the liquid sample volume required for analysis.
Manufactured in USA
The item is shipped from the United States.