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Handheld IAQ Test Instruments for Contaminant Measurement

Learn about using handheld test instruments for measuring contaminants and air properties in response to IAQ complaints. Discover the importance of calibration and quality assurance plans in ensuring accurate readings. Explore the measurement of basic air properties and the use of anemometers, flow hoods, and chemical smoke tests. Understand the exposure limits for nitrogen dioxide, carbon monoxide, and carbon dioxide, and how to measure them using appropriate test instruments.

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Handheld IAQ Test Instruments for Contaminant Measurement

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  1. Chapter 5 Handheld Meter Testing IAQ Complaints • Measurement and Testing • Air Properties • Handheld Meter Testing for Contaminants

  2. A facility procedure should be followed when responding to possible IAQ complaints.

  3. Certain conditions and contaminants can be measured easily with basic test instruments.

  4. Direct-reading test instruments are the instruments of choice for IAQ complaint investigations due to their mobility.

  5. Direct-reading IAQ test instruments are usually calibrated every month but some test instruments only require calibration once a year.

  6. Written quality assurance plans contain the data acquired by measure-ments performed with IAQ test instruments.

  7. The measurement of basic air properties, in addition to contaminants, provides a baseline for the general condition of air quality within a building.

  8. Some IAQ test instruments can display several measurements simultaneously.

  9. An anemometer is used to measure the airflow rate in cubic feet per minute (cfm) to grills and from registers.

  10. A flow hood is a device that can be used to measure the air volume in cubic feet per minute from diffusers.

  11. Chemical smoke tests help determine how airflow is moving inside a space or between spaces.

  12. No official federal standards have been set for permissible levels of nitrogen dioxide; however, some basic exposure limits have been set by various agencies.

  13. Nitrogen dioxide monitors measure the amount of nitrogen dioxide in an air sample in parts per million (ppm).

  14. Several severe health symptoms may result when exposure limits of carbon monoxide are exceeded.

  15. Carbon monoxide meters measure the amount of carbon monoxide in an air sample in parts per million (ppm).

  16. Some carbon dioxide exposure limits have been set by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE).

  17. Carbon dioxide measurement test instruments and procedures are similar to carbon monoxide measurement procedures.

  18. The EPA has set permissible ozone limits for indoor building spaces.

  19. Ozone meters measure the amount of ozone in an air sample in parts per million (ppm).

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