HVP 972: Vapor Pressure / Thiết bị đo áp suất hơi bão hòa tự động

Specifications for volatile petroleum products generally include vapor

pressure limits to ensure products of suitable volatility performance.

Vapor pressure is the most important property of gasoline for cold-start

and warm-up driveability. Gasoline volatility not only affects a vehicle’s

driveability, but also its VOC emissions – both evaporative and exhaust

emissions. Various government agencies limit gasoline and other

hydrocarbons volatility to control the aspect of air quality affected by

hydrocarbon emissions. Thus, the vapor pressure is a very important

physical property of volatile liquids for shipping and storage.

The Herzog HVP972 automated analyser is a modern analytical

instrument designed for accurate determination of vapor pressures of

both automotive and aviation gasoline, other light distillate petroleum

products, turbine fuels, crude oil, hydrocarbon solvents and chemical

compounds.

The analyser provides quick, accurate results of vapor pressure up to

1000kPa (145psi) within a wide temperature range of 0 to 100°C (32 to

212°F). The instrument reports Ptot, Pabs, DVPE, RVPE or ASVP

according appropriately selected measurement program and test

methods : ASTM D 5191, ASTM D 6378, EN 13016, IP 394, IP 481.