Density, refractive index, boiling point, and vapor pressure of eight monoolefin (1-alkene), six pentadiene, and two cyclomonoolefin hydrocarbons

Abstract

mum values of M o (eq 29) assuming minimum and maximum values for both R m ax and~. The range of ,~ may be taken as 0.7 to 0.9. Compu te the cor-l'esponding valu es for J.I. M o and mark out the vertical band corresponding to these limits in figure 1. 5. For the m aximum and minimum limits assumed for both L and ~, compute the corresponding limits for L o (eq 28). Compute the corresponding values ·of QLo/t:.p and mark out the horizontal band C01'-l'esponding to these limits in figure 1. Steps (4) and (5) result in a design rectangle on figure 1 within which a solution is possihle. 6. Further limit this design r ectangle by excluding regions of figure 1 representing greater and lesser area A (really J.l.A) than desired. 7. For gas flow, compute the maximum tolerable value of the coefficient of the Knudsen term band the corresponding minimum val ue of fib er diameter d. Exclude regions of figure 1 r epresenting smaller values of d (really d! p,). One may then choose design parameters corresponding to any point in the design region that has not been excluded. 8. When the flowm eter is built and tested, adjustment of the resistivity can then be made by the principal techniqueiof changing the weight of glass wool used. Journal of Research of the Nationa l Bureau of Standards Financial support for this investigation was provided by the Office of Naval Research under a project on Basic Instrumentation of Scientific R esearch. Grateful acknowledgement is also due W. A. Wild-hack, at ~vhose suggestion and under whose sup er-vision the development of the glass wool flowm eter was carri ed on.