Vapor Pressure Data Analysis Methodology, Statistics, and Applications

A method of fitting vapor pressure temperature data to the Antoine equation is described along with a detailed statistical analysis of the fits and calculations of vapor pressures, enthalpies of vaporization, volatilities (concentration of saturated vapors), and boiling points with the Antoine constants. It is shown that the number of digits required to accurately perform vapor pressure calculations is greater than previously believed. The system permits calculation of the limits of error for any level of confidence. A program is used to analyze and plot the available vapor pressure data for diethyl malonate. Vapor pressure, Antoine equation, Volatility, Temperature, Statistics, Plotting, Enthalpy of Vaporization, Concentration of saturated vapor, Experimental methods, Diethyl malonate, Confidence limits, Confidence level.

New Method for Water Vapor Permeability Testing of Medicine Package- Electrolytic Analysis Method

Water vapor permeability testing of package material is of great significance to medicine quality insurance. Based on the latest standards of medicine package, this article briefs on testing principle of water vapor permeability testing of electrolytic analysis method and its application in the testing of medicine package materials.