Comparison of recommended respirable mass dust sampling devices

Area of Science:

• Occupational Health and Safety
• Industrial Hygiene
• Aerosol Science

Background:

• The AIHA-ACGIH Aerosol Hazards Committee developed a revised guide for respirable mass sampling.
• The guide recommends five devices adhering to the
• Los Alamos
• respirable dust criterion.
• Recommended sampling rates vary widely, from 1.8 to 430. liters per minute.

Purpose of the Study:

• To assess the comparability of respirable mass concentrations measured simultaneously by five recommended sampling devices.
• To evaluate and compare the penetration characteristics of the first stage separators in these devices.

Main Methods:

• Simultaneous sampling using five distinct respirable mass sampling devices.
• Measurement of respirable mass concentrations.
• Evaluation of first stage separator penetration characteristics.

Main Results:

• Simultaneous measurements with the five devices showed variations in respirable mass concentrations.
• Penetration characteristics of the first stage separators were analyzed and compared across devices.

Conclusions:

• The study identified potential discrepancies in measurements obtained from different respirable mass sampling devices.
• Further evaluation of device performance is crucial for accurate occupational exposure assessment.