With the many particle size-selective sampling devices available, it
is sometimes difficult to gather all of the information needed to determine
the one best suited for an application. Ultimately, it is the user's
responsibility to choose the device required for a specific sampling
application and environment. SKC offers several particle size-selective
devices for the collection of respirable, PM2.5, PM10, or inhalable
size particles. Use the convenient guide below to help select a device
to meet your application and to find information on it in the appropriate
page. Refer to the
| Sampler |
Classification |
Flow Rate |
50% Cut-point |
Recommended
Calibration Device |
Filter Size |
Unique Features |
Button Sampler |
Inhalable |
4 L/min |
100 µm |
Button Sampler Calibration Adapter
|
25 mm |
Low sensitivity to ambient air conditions
Reduces oversampling of very large particles
|
IOM Sampler |
Inhalable
|
2 L/min
|
100 µm
|
IOM Calibration Adapter
|
25 mm |
Complies with MDHS 14/3
Meets US and international standards including
the ACGIH sampling criteria for inhalable dust
|
GS-3 Cyclone |
Respirable |
2.75 L/min
3.7 L/min
|
4.0 µm
3.5
µm |
Multi-purpose Calibration Jar |
25 mm
or
37 mm |
Overcomes sampling problems reported with
Dorr-Oliver
Conductive |
SKC Aluminum Cyclone |
Respirable |
2.5 L/min
2.8 L/min |
4.0 µm
3.5 µm |
Aluminum Cyclone Calibration Chamber
|
25 mm
or
37 mm |
Specified in NIOSH 7500 (silica) and NIOSH 0600 (respirable
particulates) |
Parallel Particle Impactor (PPI) |
Respirable
or
Thoracic |
2 L/min
2 L/min |
4.0 µm
10 µm
|
Multi-purpose Calibration Jar |
37-mm collection filter and 9.5-mm impaction substrate |
Matches entire curve more closely than any other sampler
Meets NIOSH 5524 and suitable for ACGIH thoracic
TLVs®
|
DPM Cassette |
Sub-micron |
1.7 L/min
2 L/min |
< 1.0 µm |
Multi-purpose Calibration Jar if used with GS-1 Cyclone |
37 mm |
Integral precision-jeweled impactor
Low carbon background filters
Tamper-evident seal |
PEM Sampler |
PM2.5
PM10 (thoracic) |
2 L/min
4 L/min
10 L/min |
2.5 µm
or
10.0 µm |
PEM Calibration cap
|
37 mm |
Referenced in EPA Method IP-10A for particles in indoor air |
Sioutas
Cascade Impactor |
Fractionates
2.5 µm & above
1.0 - 2.5 µm
0.5 - 1.0 µm
0.25 - 0.5 µm
< 0.25 µm |
9 L/min |
2.5 µm
1.0 µm
0.5 µm
0.25 µm |
None required |
37-mm after filter and 25-mm collection substrate |
Minimal particle bounce
Sample coarse, fine, and ultrafine particles
Preserves unstable compounds |
IMPACT Single-stage Impactor
|
PM2.5
or
PM10
or
PM Coarse |
10 L/min
10 L/min
10 L/min |
2.5 µm
or
10 µm
or
10 µm, 2.5 µm |
IMPACT Cal Adapter |
47-mm collection filter and 37-mm impaction substrate |
Follows closely EPA reference methods and criteria
Convenient disposable impaction substrate |
Personal Modular Impactor (PMI)
|
PM2.5
or
PM10
or
PM Coarse
|
3 L/min
3 L/min
3 L/min
|
2.5 µm
or
10 µm
or
10 µm, 2.5 µm
|
PMI Cal Adapter |
37-mm collection filter and 25-mm impaction substrates |
Convenient modular design
Suitable for ACGIH thoracic TLVs® |
| The concept of size-selective sampling of industrial aerosols
is based on the measurement of particles that are associated
with a specific human health effect, i.e., how deeply particles
penetrate into the respiratory tract. ACGIH recommends that
particle-size selective threshold limit values (TLVs®)
be expressed in three forms:
- Inhalable (100-µm 50% cut-point), hazardous
when deposited anywhere in the respiratory tract
- Thoracic (10-µm 50% cut-point), hazardous
when deposited in the lung airways and the gas exchange
regions
- Respirable (4-µm 50% cut-point), hazardous
when deposited in the gas exchange regions of the lungs
PM2.5 and PM10 sampling according to EPA regulations
determines compliance with ambient air quality standards and
reveals information on particle sources and their effect on
the environment and public health. |
 |
