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Direct-Reading Instruments

Overview

Highlights

Direct-reading instruments are valuable tools for detecting and measuring worker exposure to gases, vapors, aerosols, and fine particulates suspended in air. These instruments permit real-time or near real-time measurements, and their use is specifically required by some OSHA standards. There are many types of instruments available, each of which is designed for a specific monitoring purpose. Proper operation of direct-reading instruments is essential to ensure that accurate information is obtained when evaluating air contaminants.

Standards

Direct-reading instruments are addressed in specific OSHA standards for general industry, maritime, and construction.

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Evaluating Exposure

Provides information regarding methods and means used to evaluate workplace exposures with direct-reading instruments.

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Video Exposure Monitoring (VEM)

Provides information on this technique where worker exposures are monitored with direct-reading instruments while workplace activities are simultaneously recorded on videotape.

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Additional Resources

Provides links and references to additional resources related to direct-reading instruments.

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Highlights