SKC 225-367 User Manual

Operating Instructions

Tel: [phone] Fax: [phone] e-mail: [e-mail]

863 Valley View Road, Eighty Four, PA 15330 USA

Button Aerosol Sampler

Catalog No. 225-360

The patented* SKC Button Aerosol Sampler is a
reusable fi lter sampler with a porous curved-surface
sampling inlet designed to improve the collection
characteristics of inhalable dust (< 100 μm aerodynamic
diameter
viable analysis.

While closely following the ACGIH/ISO sampling
criteria for inhalable particulate mass at 4 L/min, the
Bu on Sampler's design also minimizes wind sensitivity, provides equal distribution
of particle loading and low intersample variation, and can be used in any orientation.
Sample analysis for inhalable dust is performed gravimetrically using NIOSH
Method 0500. Metals can be analyzed using direct-reading techniques (e.g.,
NIOSH Method 7702). Fungal spore analysis includes microscopy, immunoassay,
or polymerase chain reaction (PCR).

† Very large particles (> 100 μm) are thought to be less inhalable, but may enter the inlets of

†

) including bioaerosols for viable or non-

SKC Button Aerosol

some samplers by projection or sedimentation. The Bu on Aerosol Sampler design minimizes
collection of these particles.

Sampler

Performance Profi le

Flow Rate: 4 L/min
The Bu on Sampler closely follows the ACGIH/ISO inhalability

Construction: Sampling inlet: conductive stainless steel
Body: aluminum
Support screen: stainless steel
Clip: stainless steel and nylon
O-rings: PTFE (inlet) and BUNA-N (body)

Filters: 25 mm select as specifi ed by the method

Analysis: Inhalable dust: Gravimetric (GR)

Fungal spores: Epifl uorescence microscopy, immunoassay, or

Metals: X-ray Fluorescence (XRF)

Autoclavable: Up to approximately 273.2 F (134 C)

Tubing: 1/4-inch ID

* U.S. Patent Nos. 5,954,845 and 5,958,111

curve at 4 L/min. This provides optimum sampling. Sampling
effi ciency is maintained within ± 30% at fl ows ranging from
2 to 5 L/min.

polymerase chain reaction (PCR)

Operation

Wear gloves and use forceps when handling fi lters.

1. For gravimetric sampling, condition and weigh a 25-mm fi lter according to
method used.

2. Unscrew the inlet of the sampler counterclockwise until it comes off and
remove the PTFE O-ring.

3. Place the 25-mm fi lter on top of the support screen inside the sampler.

Note: Representative fi lters used for calibration do not require conditioning and
weighing.

4. Place the PTFE O-ring on top of the fi lter.

5. Replace the inlet and very gently turn clockwise until moderately tight.

Caution: Excessive tightening of the inlet section can twist and tear the fi lter.

Collar Clip

Body

Cap

Inlet
Section

PTFE
O-ring

Filter

Support
Screen

BUNA-N
O-ring

Outlet Plug

Calibration

1. Ensure pump had run for 5 minutes before calibrating.

2. Using fl exible tubing, connect the outlet of the

Bu on Sampler to the inlet of a sampling pump.

3. Place the calibration adapter outlet onto the Bu on
Sampler inlet, and connect the calibration adapter
inlet to a primary standard calibrator.

4. Calibrate to 4 L/min following the instructions in the
pump and calibrator operating instructions.

5. Disconnect the calibrator and calibration adapter.
Replace the fi lter used to set the fl ow with a fresh

Button Sampler
with Calibration
Adapter

conditioned and weighed fi lter for sample collection.

Note: If using the Bu on Sampler with protective shield for abrasive blasting
sampling, calibrate the Bu on Sampler without shield using the Calibration
Adapter. Following calibration, push shield onto sampler inlet and sample.

Sampling

1. Ensure the fl ow rate has been calibrated (see Calibration).

2. Using fl exible tubing, connect the outlet of the Bu on Sampler to the inlet of
a sampling pump such as an AirChek

3. For personal sampling, clip the Bu on Sampler onto a worker’s collar or
pocket near the breathing zone. Clip the pump onto the worker’s belt or
place it in a protective pouch. Start the pump and record the start time,
worker location, and fl ow rate.

®

XR5000 Sampler.