This tutorial is designed for intermediate level gINT users, and is intended for self-study. It explores the lab testing subsystem of gINT, a suite of laboratory test tables that integrate with each other and with other areas of gINT. It covers the conversion of an existing database to include lab testing tables, the lab testing data entry interface in gINT, the use of five common test applications (Water Content/Density, Atterberg Limits, Sieve Analysis, Hydrometer Analysis, and Compaction), and reporting. The tutorial employs detailed explanations of conceptual topics, and also has you perform step-by-step instructions in gINT.