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Button Aerosol Sampler

For Low-level Inhalable PM Sampling

The SKC Button Aerosol Sampler for inhalable dust sampling  cat no 225-360

The SKC Button Aerosol Sampler for inhalable dust sampling

Sample Time: Varies
Sample Rate: 4 L/min optimum
Sample Pump: AirChek XR5000
Sample Media: 25-mm filters**
Tubing: 1/4-inch ID

Button Sampler Instructions (PDF)

Button Sampler Product Data Bulletin (PDF)

  • 4 L/min flow rate enhances sensitivity


  • Follows closely the ACGIH/ISO sampling criteria for inhalable particulate mass at 4 L/min


  • Low sensitivity to wind direction and velocity


  • Reduces electrostatic effects


  • Small and lightweight for personal sampling


  • Reduces oversampling of very large particles


  • Suitable for collecting bioaerosols for viable or non-viable analysis


  • Kit available for sampling heavy metals during abrasive blasting


  • Autoclavable


  • Ideal for personal and area sampling

The patented* reusable SKC Button Aerosol Sampler is a filter sampler with a porous curved-surface inlet designed to improve the collection characteristics of inhalable dust (< 100 µm aerodynamic diameter), including bioaerosols for viable or non-viable analysis. The curved, multi-orificed inlet, made of conductive stainless steel, reduces electrostatic effects and reduces sensitivity to wind direction and velocity. The proximity of the filter to the inlet minimizes transmission losses and provides equal distribution of particle loading and low intersample variation. The Button Sampler closely follows the ACGIH/ISO sampling criteria for inhalable particulate mass at 4 L/min. A convenient conductive plastic transport case is available for shipping the filters to a laboratory for analysis.

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

Collection of Inhalable Bioaerosols
The SKC Button Aerosol Sampler provides superior collection of inhalable particles including bacteria and fungal spores. Use the Button Sampler with a 25-mm membrane filter such as MCE or PVC to collect bioaerosols for viable or non-viable analysis. Using SKC gelatin filters with the Button Sampler helps to maintain viability of stress-sensitive microorganisms during short sampling periods. The Button Sampler is used with a sample pump capable of 4 L/min for personal inhalable particulate sampling following the ACGIH/ISO criteria.

Performance Profile
Flow Rate:
  4 L/min
The Button Sampler closely follows the ACGIH/ISO inhalability curve at 4 L/min. This provides optimum sampling. Sampling efficiency is maintained within ± 30% at flows ranging from 2 to 5 L/min.

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)

Filter:
           25 mm**
Analysis:
  Inhalable dust: Gravimetric (GR)
  Fungal spores: Epifluorescence microscopy, immunoassay, or polymerase chain reaction (PCR)
  Metals: X-ray Fluorescence (XRF)
** A filter pore size of 1.0 µm or larger is recommended for use with the Button Sampler to reduce back pressure.

Operation
The SKC Button Sampler is easy to operate. Simply unscrew the inlet section, remove the PTFE O-ring, place a conditioned and weighed 25-mm filter on the stainless steel support screen, replace the O-ring, and screw the inlet section back onto the sampler. Connect the Button Sampler to a personal sampling pump; clip the sampler onto a worker’s collar and the pump to the worker’s belt. Sample for the appropriate time period.

Button Aerosol Sampler with Calibration Adapter
An easy-to-use calibration adapter is available for the Button Sampler. Simply push the calibration adapter onto the Button Sampler inlet and connect the adapter inlet to a primary standard calibrator. Calibrate to 4 L/min.

Abrasive Blasting Sampler for Heavy Metals
SKC has created an Abrasive Blasting Sampler for Heavy Metals Kit that contains a Button Aerosol Sampler and a protective shield. This sampler is designed to withstand the mechanical stress from blasting operations. The sampler’s shield protects the filter from shredding or being overloaded by large particles thrust into the sampler. The Abrasive Blasting Sampler for Heavy Metals efficiently collects inhalable heavy metal particles# with low sensitivity to ambient conditions. The U.S. military has used the SKC Abrasive Blasting Sampler for Heavy Metals during abrasive blasting operations. The sampler withstood very high particle concentration and provided recoverable samples and meaningful exposure information.
# The SKC Abrasive Blasting Sampler for Heavy Metals is not suitable for sampling silica. While silica is commonly found in abrasive blasting environments, sampling for silica using OSHA Method ID 142 requires a cyclone.

About Using Gelatin Filters with the Button Sampler

For maximum microorganism survivability and superior collection of inhalable-size bioaerosols, use gelatin filters with the SKC Button Sampler. Combining the Button Sampler's exceptional filter collection uniformity and low intersample variation with the nurturing properties of gelatin filters creates a sampler that is most efficient at collecting bioaerosols for viable plus non-viable analysis. Click here to go to the Gelatin Filter page.
Button Sampler with Gel Filters

Ordering Information
Description Cat. No.
Button Sampler, requires a 25-mm filter, see below Button Sampler 225-360 225-360
Abrasive Blasting Kit includes Button Sampler and protective shield; requires a 25-mm filter,see below Abrasive Blasting Kit 225-367 225-367
Button Sampler Pump Kit (100-240 V) includes Button Sampler, standard XR5000 Sample Pump, single charger with cable, 3 feet of Tygon tubing, and calibration adapter; requires a 25-mm filter, see below   210-4121
Accessories
Protective Shield, for abrasive blasting environments Protective Shield  225-366 225-366
Button Sampler Calibration Adapter Button Sampler Calibration Adapter 225-361 225-361
Filter Transport Case, for 25-mm filters, conductive plastic Filter Transport Case 225-67 225-67
Replacement O-ring, for Button Sampler P32265
25-mm Filters ** Pore size
Qty.
Cat. No.
Glass Fiber 1.0 µm
Liquid nominal pore size
500 225-702
Mixed cellulose ester (MCE) 1.2 µm 100 225-1912
PTFE with PMP support (Teflo®)# 3 µm 50 225-1711
Gelatin Sterilized   50 225-9551
Polyvinyl chloride (PVC) 5.0 µm 100 225-8-04
 Back pressure on PTFE filters can vary within the same lot.
 Gelatin filters dissolve when placed on agar .
#  Maximum operating temperature is 464 F (240 C).
**  A filter pore size of 1.0 µm or larger is recommended for use with the Button Sampler to reduce back pressure.

Button Sampler Instructions (PDF)

Button Sampler Product Data Bulletin (PDF)

References

Kalatoor, S., Grinshpun, S., Willeke, K., "New Aerosol Sampler with Low Wind Sensitivity and Good Filter Collection Uniformity," Atmospheric Environment, Vol. 29, No. 10 (1995), pp. 1105-1112

Hauck, B., Grinshpun, S., Reponen, A., Reponen, T., Willeke, K., Bornschein, R., " Field Testing of New Aerosol Sampling Method With a Porous Curved Surface as Inlet," American Industrial Hygiene Association Journal, Vol. 58, No. 10 (1997), pp. 713-719

Gao, P., Chen, B., Baron, P., Soderholm, S., "A Numerical Study of the Performance of an Aerosol Sampler with a Curved, Blunt, Multi-Orificed Inlet," Aerosol Science and Technology, Vol. 36, 2002, pp. 540-553

Aizenberg, V., Reponen, T., Grinshpun, S., Willeke, K., "Performance of Air-O-Cell, Burkard, and Button Samplers for Total Enumeration of Airborne Spores," American Industrial Hygiene Association Journal, Vol. 61, Nov/Dec, 2000, pp. 855-864

Aizenberg, V., Grinshpun, S., Willeke, K., Smith, J., Baron, P., "Performance Characteristics of the Button Personal Inhalable Aerosol Sampler," American Industrial Hygiene Association Journal, Vol. 61, 2000, pp. 398-404

Aizenberg, V., England, A., Grinshpun, S., Willeke, K., Carlton, G., "Metal Exposures Among Abrasive Blasting Workers at Four U.S. Air Force Facilities," Applied Occupational and Environmental Hygiene, Vol. 15, No. 10, 2000, pp. 766-772


This page was last modified January 16, 2011
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