The student manual for a course in sampling and evaluating airborne asbestos (1332214) dust is presented. The course, conducted by the NIOSH division of training and manpower development consists of lecture topics, demonstrations, and laboratory work. The lecture topics included asbestosis, sampling and calibration equipment, sampling procedures, asbestos structures as determined by microscopy, microscope use and calibration, counting procedure, and methods for identifying asbestos. Laboratory work includes pump calibration, use of the wet meter bubble buret, microscope preparation and slide mounting, and fiber counting. The manual contains the US Public Health Service/NIOSH method for evaluating airborne asbestos fibers, the department of labor and food and drug administration rules and regulations governing asbestos exposure, the physiological aspects of asbestosis, descriptions of sampling and calibration equipment, guidelines for monitoring dust concentrations in the asbestos industry, procedures for use of microscopes and associated equipment, filter mounting procedures, counting procedures, and a calibration work sheet.