1.1 To provide criteria to be used in defining air sampling strategies for workplace health and safety monitoring or evaluation, such as: duration, frequency, number, location, method, equipment, and timing.

1.2 When sampling is done to determine if the conditions in the workplace are in compliance with regulations of the U.S. Occupational Safety and Health Administration (OSHA), many of these criteria, for specific hazardous substances, are stated in 29 CFR 1910.