The Fann Porta Lab¬™ Model 853 Mud Testing Kit is the most widely used field portable test the world. This kit is designed to provide all necessary drilling fluid testing equipment required for field testing of drilling fluids according to API Recommended Practice 13B-1. The kit contains a Rheometer, Retort, Mixer for Pilot Testing, Half Area Filter Press, Sand Content set, pH Papers, Chemicals and Glassware for Chloride, Alkalinity, and Water Hardness Tests. All testing apparatus and reagents are contained in a specially designed stainless steel case. The front panel of the kit forms a work table when opened. The Fann Porta Lab family of products has been used by drilling fluid engineers around the world for over forty years. When a series of tests is needed at the drilling site, Fann Porta Lab includes the entire range of instruments necessary to measure the parameters of a successful drilling fluid operation. The kits are enclosed in rugged, durable cases, built to withstand harsh conditions.