The patented (U.S. Patent No. 7,334,453) SKC IMPACT
single-stage
inertial impactor is designed for the efficient collection of PM10, PM2.5,
or PM Coarse
in ambient air. A sampling pump operating
at 10 L/min draws particles through the impactor; larger particles are captured
on a disposable pre-oiled impaction substrate while smaller particles collect
on
a 47-mm
filter. IMPACT media changes are as easy as removing the filter cassette and
replacing
it with one already loaded with a filter and impaction disk that mounts
in the top of the cassette. IMPACT’s higher flow rate requirement provides
increased sensitivity to low levels of PM. For sampling efficiency data,
see
When using an IMPACT PM10 Sampler with the Coarse Ring accessory or an IMPACT
PM Coarse Sampler (see Ordering Information), particles are drawn through a
PM10 inlet. Particles > 10 µm collect on an oiled impaction disk mounted
on top of the first filter cassette. No collection filter is loaded inside
this cassette. Smaller particles proceed through a PM2.5 impactor (coarse ring).
Particles < 10 µm and > 25 µm collect on a filter placed
in the impaction disk position on top of the second filter cassette. Particles < 2.5 µm
collect on the 47-mm filter inside the second filter cassette. Send filters
to a laboratory
for gravimetric and chemical analyses.
While IMPACT can be used with any pump at 10 L/min, partnering IMPACT with
the Leland Legacy pump provides a highly efficient sampling system. The
quiet, fully programmable Leland Legacy pump can provide a constant 10 L/min
flow
rate for 24 hours making it ideal for 24-hour environmental monitoring
or indoor air studies. IMPACT and the Leland Legacy Sample Pump are both
included
in the
Flow Rate |
10 L/min |
50% Cut-point |
2.5 µm or 10 µm (model dependent) |
Impaction Disks |
Recommended impaction disk to reduce particle
bounce: 37-mm disposable pre-oiled porous plastic disk
For chemical analysis of larger particles: 37-mm filter (quartz
or PTFE)
Back pressure on PTFE filters can vary within the same lot. |
Collection Filter |
47-mm filter, select material based on application |
Impactor Material |
Aluminum (inlet) with brass barbed fitting for 3/8-in ID tubing |
Dimensions |
2.6 dia. X 1.8 H x 3.8 L in (7 x 5 x 10 cm) |
Weight |
0.5 lb (0.23 kg) |
| IMPACT Sampler |
Cat. No. |
| IMPACT Sampler includes
filter cassette, calibration adapter, and rain cover for sampler |
PM10 |
|
PM2.5 |
|
| IMPACT Sampler PM Coarse includes
2 filter cassettes, calibration adapter, and rain cover for
sampler |
PM Coarse |
|
| Replacement Filter Cassette |
|
| PM Coarse Ring includes
filter cassette, adapts IMPACT PM10 to an IMPACT PM Coarse |
|
| DPS System
|
DPS System includes
sample pump with connection case and charger (100-240 V), 2 external
battery assemblies, IMPACT sampling head, 2 filter
cassettes, calibration adapter, rain
cover for sampling head, 25 disposable impaction disks (limited
shelf-life), filter cassette opener, tubing with quick-connect
fitting, and mounting bracket in a heavy-duty lockable carry
case. Two external battery assemblies with adapters are packaged
separately.
DPS Systems with pumps contain Li-Ion batteries and may be
subject to special shipping regulations dependent upon quantity.
The DPS
System provides data similar to data from Federal Reference Method
samplers. The DPS System is not a Federal Reference Method sampler. |
PM10 Kit |
|
PM2.5 Kit |
|
| Recommended Collection
Filters for use with Leland Legacy Sample Pump, required
for each sample; select a filter based on your application |
Qty. |
Cat. No. |
| Quartz Filters, 47 mm, Tissuquartz, 432 µm
thick |
25 |
|
PTFE Filters, 47 mm,
2.0-µm
pore size, with PMP support ring
Back pressure on PTFE filters can vary within the same
lot. Maximum operating temperature is 464 F (240 C)
based on the PMP support ring. |
50 |
|
| Impaction Disks for IMPACT Sampler, required
for each sample; select
an impaction disk based on your application |
| Recommended to Reduce Particle Bounce
|
Porous Plastic Disks, 37
mm, pre-oiled, ready to use, disposable
Limited shelf-life
|
10 |
|
25 |
|
50 |
|
| For Chemical Analysis of Larger
Particles |
| Quartz Filters, 37 mm, Tissuquartz, 432 µm
thick |
25
|
|
PTFE Filters, 37 mm,
2.0-µm, laminated
PTFE support
Back pressure on PTFE filters can vary within the same
lot. |
50
|
|
| Accessories
|
| Petri Dish Slide, for filter transport |
100 |
|
| Filter Cassette Opener |
ea |
|
| Mounting Bracket |
ea
|
|
| Forceps, stainless steel |
ea |
|
| Glass Jars, for
Chemical Analysis |
8 |
|
36 |
|
| Software
|
| DataTrac for Leland Legacy Software includes
software on CD, adapter, and cable, requires Windows 98 or higher
and available COM port |
|