The All-New Zefon Disposable Respirable Sampler (DRS)

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:

• 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

DRS Features and 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:

• 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 Specifications

• Flow Rate: 2 L/min (personal sampling)
• Collection Efficiency: Meets the requirements of ISO 7708/CEN particle-size-selective criteria for respirable dust samplers
• Construction: Molded conductive plastic (sampler body)
• Filter: 5.0µm PVC pre-weighed and un-weighed
• Weight w/ cassette: 0.5 oz (15.0 gm)
• Size: 2.0 x 1.0 x 1.0 in (5.1 x 2.5 x 2.5 cm)

Choosing a Disposable Sampler Over a Reusable Sampler

Two types of inhalable samplers are available: disposable and reusable models. A reusable version features a lower unit cost, and the fact that you can wash it and use it repeatedly translates to lower long-term ownership costs. On the downside, reusable samplers require frequent care to ensure they remain free of contaminants.

It's also possible that workers can make a mistake when pre-assembling the cassettes, as well as when matching the cassette with the correct filter or back. Another potential risk is that users could attach the wrong clip when shipping the cassettes to the testing lab, which could produce inaccurate sampling results.

Perhaps the most important advantage of choosing a disposable sampler is that the cassettes come already loaded, which eliminates the hassle of assembling them and prevents errors. You also won't have to worry about cleaning or caring for the cassettes, which saves time and substantially reduces the risk of contamination. What's more, disposable samplers weigh less than their reusable counterparts, which can enhance testing results and improve sampling accuracy.

The only significant disadvantage of using disposable samplers is that they might not provide the most cost-effective solution for sampling operations that have the resources and equipment to manage the handling and control process with efficiency.

Why Should You Buy Disposable Samplers by Zefon International?

All of our disposable samplers for sale meet the highest standards for quality and reliability. You'll also get world-class customer service, fast shipping and our hassle-free 30-day return, exchange or credit policy. If you have questions or need assistance, feel free to give us a call at 1-800-282-0073 (U.S. only) or 1-352-854-8080.

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