The In Situ Coal Gasification Project at the Lawrence Livermore Laboratory has developed a laboratory coal gasifier test facility. The facility consists of systems for monitoring gases into an experimental gasifier, condensing the tar and water out of the product gases and flaring them, sampling and analyzing the product gases, and monitoring the gasifier during an experiment. The major items of equipment include: a CVC mass spectrometer, a Hewlett-Packard process gas chromatograph, and Hewlett-Packard 21 MX-E minicomputer, and the experimental coal gasifiers-currently a 1.5 m fixed bed gasifier and a 0.9 m borehole gasifier. This facility is described and the use of the facility in validating software and hardware for use in field experiments is discussed.