This book has been written with an intention to cover all the possible experiments which are to be conducted in the pharmaceutical engineering/ Pharmaceutical Unit Operations laboratory at the UG level. I have tried to incorporate all the experiments suggested under pharmaceutical engineering / Pharmaceutical Unit Operations by various universities. The designed experiments are all practically performed in the laboratory by my students and that has given me ample to chance to improve the quality of the experiments. During this period, I could observe the difficulties of the students in collecting primary information which are the part of the main experiments. That is the usage of different standard values like specific heat, radiation constants of different materials and conversion of units are examples. I have included all such information in this book so students are benefited to get them in a single book and also incorporated useful definitions, Viva Questions and related Questions to that individual experiments. I am so proud to present before you my book "Pharmaceutical Engineering Experimental Lab Manual-I (Unit Operations)". Hope that it will be well accepted by the Pharmaceutical science community. The suggestions are encouraged and acknowledged.-Author