The aim of the 5th international conference on conduction and breakdown of dielectric liquids is the same as that of the preceding conferences, namely to have a forum where all experts in this vast field can meet, can present their latest results and can exchange their ideas. It comes within this framework that the subjects of this conference cover the whole field of conduction and breakdown of polar and non polar liquids, including cryogenic liquids. In comparison with many other international conferences this is a relatively small one. This fact has the great advantage that all participants can be lodged in the congress centre "De Leeuwenhorst" at Noordwijkerhout. The result is that everybody who wants to talk about a problem with a colleague can easily contact him and make an appointment. When the organizing committee, whose members are J.M. Goldschvartz, chairman, A.K. Niessen and W.Boone began their task, the first idea was to organize the conference in the Aula complex of the Delft University of Technology, since the conference is sponsored by the Department of Applied Physics of the university. Then the participants had to be lodged not only in Delft but also in surrounding towns as the number of hotel beds in Delft is very limited. Thus, the decision to move into "De Leeuwenhorst" was practical and wise.

Table of Contents:
Mobility and Conduction.- Electron transport in high mobility liquid hydrocarbons and tetramethylsilane.- A maximum bound for electronic mobilities in liquid hydrocarbons.- Electron drift mobility measurements in liquid 3-methylpentane and the effect of impurities.- Hole conductivity in liquid hydrocarbons.- Carrier mobility in liquid crystals.- Electrical conduction in nematic liquid crystals.- High-Field Conduction.- Conduction adjacent to oil-immersed dielectric surfaces in a non-uniform field.- The effect of solid polymeric materials on the ionic conductivity of liquids under high electric stress.- Light emission studies in the interpretation of high-field conduction of dielectric liquids.- Frequency dependence of stress-induced cavitation in fluorocarbon liquids.- High-field conduction pulses in n-hexane.- High-Field Conduction.- Electrical conductance and breakdown in liquid hydrocarbons.- On the theory of filamentary single injection and high-field electric conduction and breakdown in dielectric liquids.- Transient electric field and space charge behaviour for drift dominated bipolar conduction in dielectric liquids.- Conduction-Impurities.- Simulation of charge transport following unipolar injection.- The effect of trapping and detrapping of electrons on the negative charge carrier mobility in liquid tetramethylsilane.- A contribution to the study of low-field conduction by impurity particles in dielectric liquids.- Influence of solid impurities on the electric strength of transformer oil.- High-field conduction in heavily contaminated transformer oil.- Effect of added electronegative substances (SF6, I2) on ion mobility in mineral oil.- Injection.- Monitoring of injection processes in dielectric liquids.- Charge injection in dielectric liquids by photoelectricemission.- Factors Controlling ion injection by metallic electrodes in dielectric liquids.- Conduction in insulating liquids due to carrier injection: nature of carriers injected and regeneration thereof by ionic polymers.- Photo-injection into n-hexane.- Free ion yields of some dielectric liquids and study of binary mixtures of those dielectrics irradiated by 60Co and 137Cs y rays.- EHD.- Electrohydronynamic stability of liquids subjected to unipolar injection.- Double injection with recombination: EHD stability and charge transfer.- The influence of induced motion of unipolar charge transport.- The electroviscous effect and its explanation.- Electrolytic conduction and EHD turbulence.- On the role of ions and dipoles on electroconvective processes in insulating liquids.- Field distributions in chlorobiphenyls under direct voltages.- Pre-Breakdown.- Study of a three electrode cell for the recording of the transient pre-breakdown phenomena in liquid dielectrics.- Corona and the molecular structure of insulating liquids.- Behaviour of a water drop in the pre-breakdown processes in insulating oil.- The effect of SF6 on partial discharge in transformer oil under non-uniform field.- Breakdown.- Breakdown time lag and time of flight and measurement in liquid dielectrics.- Investigation of time-lag characteristics-for a triggered spark gap in a liquid dielectric.- Cathode fall like discharge in dielectric liquids.- Memory effect in dielectric liquids being subjected to recurring discharges.- The assignment of appropriate dielectric stresses in liquids.- Mechanisms in Breakdown.- On the mechanisms of dielectric breakdown in liquids.- Breakdown of oil using one bare and one electrode coated with an insulating film.- Estimation problems in the step-function breakdown test.- Breakdown and infra-breakdown phenomena at low rates of stress application.- Cryogenic Liquids.- Ionic mobility measurement in dielectric liquids by the method of the full space charge limitation.- Corona light and corona pulse nitrogen.- The observation of dielectric breakdown in liquid nitrogen using discharge figures.- Some aspects of breakdown in liquid nitrogen.- Statistical analysis of the dielectric breakdown in liquid nitrogen under uniform field conditions.- Dielectric breakdown of flowing liquid nitrogen under D.C. and A.C. voltage.- Miscelaneous.- Chemical relaxation of the nonlinear dielectric effect in dipole equilibria.- Power factor of silicone liquids.- Electro-disintegration of dielectric liquids.- The faraday-sumoto effect.- Pulse generators with liquid dielectric gaps.