The Zefon Disposable Respirable Inhalable Sampler (DRS) is a modified variation of the Zefon Disposable Inhalable Sampler (DIS). The DRS adds a certified foam insert that has a collection efficiency that closely matches the ISO 7708/CEN convention for respirable dust. This eliminates the need for the use of a cyclone to collect the respirable dust. The DRS meets the criteria of a sampler for the OSHA permissible exposure limit (PEL) of Respirable Crystalline Silica.
How our DRS works:
Using our disposable respirable inhalable sampler first requires calibration to ensure sampling accuracy. The steps in the calibration process include:
- Inserting the DRS into the calibration adapter and tightening the thumbscrew
- Connecting the sampler's outlet port tubing to the pump's inlet fitting
- Attaching the tubing to the adapter's brass hose barb as well as the opposite end of the calibrator
- Starting the pump and adjusting the flow rate to attain a calibrator reading of 2/L min
After calibration, you're ready to start sampling. The process entails:
- Collects on the ISO 7708/CEN convention for respirable dust.
- Meets the requirements for Respirable Crystalline Silica sampling according to OSHA 1926.1153 (final rule).
- Available with filters that are pre-weighed.
- Disposable and ready to use. Nothing to assemble or clean.
- Small and lightweight design makes it more comfortable for users to wear vs a cassette with cyclone.
- Does not require a cyclone.
DRS Features & Benefits:
The Disposable Respirable Inhalable Sampler from Zefon International includes a host of features and benefits that simplify the sampling process, increase accuracy and reduce costs:
- Verifying that the pump calibration matches the method flow rate
- Using the clip to attach the DRS sampler to the employee's lapel to ensure proximity to the breathing zone
- Removing the red outlet plug
- Connecting the tubing from the inlet of the worker's sampling pump to the DRS sampler's outlet
- Removing the cap from the sampler inlet
- Sampling for the length of time specified by the desired application
- After sampling, using the cap to cover the sampler outlet and inserting the red plug into the outlet
- Placing the sampler into an appropriate bag and shipping it to the lab for analysis
Additional Information Available
Instructions for Use of Zefon Respirable Inhalable Sampler (DRS)
Harper, M. Recent Advances in Occupational Exposure Assessment of Aerosols. Int. J. Environ. Res. Pub. Health, vol 18(17) DOI: 10.3390/ijerph17186820, 18pp.