The first of a three-part series designed to highlight the principles of Vacuum Science and Technology. This book is written for those who are new to vacuum and covers many of the topics that are used in industrial rough vacuum applications such as: pressure conversions, flow conversions, pumpdown of closed systems, vacuum technologies, filtration and vacuum piping. Readers will gain a working fluency of the words, terms and concepts used in sizing and applying vacuum pumps to industrial and manufacturing processes. In addition, this book provides tips on the application and installation of vacuum pump accessories. This book is complete with a glossary of common terms and a chapter dedicated to sample problems on major topics.