MINIVAP VPL Vision - Low Volatility Vapor Pressure Tester
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VAPOR PRESSURE MINIVAP VPL VISION Engineered for Highest Precision The MINIVAP VPL Vision offers unmatched precision for vapor pressure testing of gasoline, jet fuel, pure and multi-component solvents or flavors in a pressure range of 0.1 - 150 kPa. Routine testing on low volatile samples can be performed with a precision of less than 0.1 kPa. The instrument includes Grabner´s static methods, that test the absolute vapor pressure of samples and deliver results that correlate well to the ASTM D2879 Isoteniscope Method. BENEFITS • Low Volatility - Highest Precision! Low vapor pressure is difficult to measure with standard apparatus. The VPL Vision is optimized for a pressure range of 0.1 to 150 kPa and offers unmatched repeatability of less than 0.1 kPa! • Modern Replacement of Isoteniscope In the MINIVAP VPL Vision, the absolute vapor pressure is measured by the Triple Expansion method, which yields results equivalent to the ASTM D2879 Isoteniscope method. • All Methods for Fuels and Chemicals The VPL Vision includes all standard vapor pressure methods for testing gasoline and jet fuels. And it features static VOC methods for testing pure or multi-component chemicals. • Maintaining Sample Composition To determine the absolute vapor pressure, dissolved and entrained air has to be removed from the sample. In the Isoteniscope this is done by evacuation. But even careful evacuation bears the risk that volatile constituents of the sample are being removed. The piston based technology of the VPL Vision removes air from the measurement result and does not require a vacuum pump. Multicomponent samples can be measured without changing sample composition. • Minimizing Residual Contamination Through a clever combination of the well proven Sampling Pro TM valves and automatic rinsing, crosscontamination between samples is minimized. • Versatile and Easy to Use Single- and multi-point measurements can be performed over a wide temperature range from 0-120°C. To generate a fast equilibrium, a shaker is installed. No experienced personnel is required to perform a test: After connecting the sample to the instrument and pressing “RUN”, an automatic measurement is performed. A standard result is obtaine

AVAILABLE METHODS • Direct/Indirect VOC Methods; ASTM D5191, D5188, D6378; EN 13016-1+2, IP 394, 409, 481; JIS K2258-2, SHT 0769, 0794, SNT 2932, GOST 52340 • Excellent correlation to ASTM D323, D2879, D4953, D5482 • ASTM D2879 Isoteniscope Method An Isoteniscope is the standard instrument for testing low absolute vapor pressures. This static method is tedious to use and requires highly skilled and experienced personnel, especially when performing the outgassing procedure. The measurement typically is time consuming and not very repeatable. Consequently, this method is not useful for...