SKC Preloaded Disposable Parallel Particle Impactors (PPI) Cat. Nos. 225 3841, 3851, 3861, 3862, And 3871 Operat 38056

User Manual: 38056

Open the PDF directly: View PDF .
Page Count: 8

Download
Open PDF In Browser	View PDF

Operating Instructions
863 Valley View Road, Eighty Four, PA 15330 USA
Tel: 724-941-9701 • www.skcinc.com

SKC Preloaded Disposable
Parallel Particle Impactors (PPI)
The patented† impaction-based SKC Disposable Parallel Particle
Impactor (PPI) Samplers are designed to match precisely the
collection efficiency curves for respirable and thoracic dust
specified by ISO 7708/CEN and adopted by ACGIH, CEN, and
other occupational hygiene organizations. The performance of
the respirable PPI samplers also meets the ISO 7708/CEN criteria
included in the OSHA final silica rule. The thoracic model meets the
requirements of NIOSH Method 5524 for metalworking fluids and
compounds with ACGIH® thoracic TLV®s. Disposable PPI Samplers
offer the convenience of single use to eliminate sampler assembly and
cleaning; small size for worker comfort, even under helmets or other
PPE; and a choice of flow rates for maximum flexibility in pump options,
sample duration, and contaminant concentration. These instructions
are for PPI models pre-assembled with filter, support, and impaction
substrates. Note: PPIs 225-3841, 225-3851, and 225-3871 are preloaded with a
5.0-μm PVC filter for chemical analysis. For gravimetric analysis, contact your
laboratory to pre and postweigh the filter.
† U.S. Patent No. 7,073,402

Performance Profile
Sampling Rate: 2 L/min respirable or thoracic, 4 or 8 L/min respirable
Sample Pump: • Universal XR or AirChek® Series for 2 and 4 L/min
• Leland Legacy for 8 L/min
Sample Time: Dependent on method used. Note: SKC tests indicate that a particulate mass of up to
6.8 mg on the four impaction substrates would not affect PPI performance. This amount is
equivalent to sampling for 6 hours in environments where respirable mass concentration
is 4.76 mg/m3. However, labs have reported to SKC that they prefer no more than
2 mg on the filter for analytical reasons. Therefore, SKC recommends that you
work with your lab to determine optimum sample times for your unique sampling
conditions.
Sample Media: Respirable models: 37-mm, 5.0-μm PVC filter (not preweighed) and cellulose
support pad
Thoracic model: 37-mm, 0.8-μm MCE filter (not preweighed) and cellulose
support pad or 37-mm Quartz filter (not preweighed) and cellulose support
pad
Impaction
Four 3/8-in diameter pre-oiled porous plastic discs
Substrate:
(assembled in all Disposable PPIs)
Analysis:
Chemical
Body Material: Conductive ABS plastic
Dimensions:
Height:
4.25 in (10.8 cm) - clip to exhaust
Diameter:
1.8 in (4.6 cm)
Depth:
1.2 in (3 cm)
Weight:
1.1 oz (31.2 gm)
Shelf-life:
18 mos from date of manufacture

Principle of Operation
SKC Disposable PPI Samplers are impaction-based filter samplers that perform precise
size-selection for either thoracic or respirable dust, depending on the model. PPI Samplers
contain four small impactors in the inlet section of the device. Each impactor features
a unique 50% cut-point to target a specific one-quarter segment of the ISO/CEN curve
resulting in a precise fit along the entire curve. A sample pump operating at 2, 4, or 8 L/
min (2 L/min only for thoracic) pulls air through the inlet nozzle of each impactor in the
inlet plate. Particles larger than each impactor’s 50% cut-point are scrubbed and retained by
impaction onto the porous oiled impaction substrate contained in each impactor. Smaller
particles continue to the standard 37-mm collection filter for analysis.
Dust enters here

Inlet plate (contains 4 impactors with unique cut-points
preloaded with 4 impaction
substrates and sonically
welded)
Standard 37-mm collection
filter (assembled)
Protective
end cap

37-mm support pad
(assembled)
Exhaust
to pump
Base plate
Collar clip

PPI Performance

Collection efficiency of the 2, 4, and 8 L/min
respirable PPI Samplers compared to the
ISO respirable curve

Collection efficiency of the 2 L/min
thoracic PPI Sampler compared to the
ISO thoracic convention

2

Sampler Preparation
SKC Preloaded Disposable PPIs are supplied assembled and ready to use.
Note: Preloaded filters are not preweighed. PPIs 225-3841, 225-3851, and 225-3871 are
preloaded with a 5.0-μm PVC filter for chemical analysis. For gravimetric analysis, contact
your laboratory to pre and postweigh the filter.
1.

Remove shrink wrap.

2.

Write sample ID on sampling label. Adhere sampling label to bottom of
base plate.

2
3.

Remove protective cap from exhaust.

Calibration and Sampling
As the particle load on the filter increases during sampling, the pressure drop will
also increase. Therefore, use a compensating sample pump such as the AirChek
Series or Leland Legacy depending on flow rate requirements.
Calibration
Calibrate the pump flow rate with a representative Preloaded Disposable PPI
sampler. See pump and calibrator operating instructions.
1.

Ensure the pump has run for 5 minutes before calibrating.

2.

Ensure representative impactor is loaded with a support and collection filter
and that it is fully assembled. See Sampler Preparation above.

3.

Align the bottom of the calibration adapter with the inlet plate of an assembled,
loaded representative Disposable PPI and press down firmly until the
calibration adapter’s O-ring is engaged and creates an even seal.

4.

Use flexible tubing to connect the exhaust of the Disposable PPI to the inlet of
a sample pump.

5.

Use flexible tubing to connect the inlet of the calibration adapter to the suction
port (outlet) of a calibrator.
3

6.

Calibrate to 2 L/min for the 2 L/min respirable and thoracic model PPIs,
4 L/min for the 4 L/min respirable model, or 8 L/min for the 8 L/min respirable
model. Follow the calibration instructions in the pump and calibrator operating
instructions.

7.

When calibration is completed, disconnect the tubing from the calibrator and
calibration adapter.

8.

Grasp the Disposable PPI with one hand and the calibration adapter with
the other hand. Firmly pull/twist to remove the calibration adapter from the
Disposable PPI inlet plate.

9.

Replace the representative Disposable PPI used to set the flow with a new
loaded Disposable PPI for sample collection.
Flexible
tubing

Caution: Using excessive
pressure to seal the calibration
adapter to the Disposable PPI
may make the calibration adapter
difficult to remove.

Calibration
adapter
Sample
pump

Flexible
tubing
Disposable PPI
Calibrator

4

Sampling
SKC tests indicate that a particulate mass of up to 6.8 mg on the four impaction
substrates would not affect PPI performance. This amount is equivalent to sampling
for 6 hours in environments where respirable mass concentration is 4.76 mg/m3.
However, labs have reported to SKC that they prefer no more than 2 mg on the
filter for analytical reasons. Therefore, SKC recommends that you work with your
lab to determine optimum sample times for your unique sampling conditions.

1.

As per good industrial hygiene practice, replace representative sampler used
for calibration with a new, unused preloaded sampler.

2.

Record sample start time on label.

3.

Clip Disposable PPI onto a worker’s collar or lapel in the breathing zone or in
the area to be sampled.

4.

Clip sample pump at the worker’s waist or close to the Disposable PPI.

5.

Use flexible tubing to attach the Disposable PPI exhaust
to the inlet of the sample pump.

6.

Turn on pump and record pertinent sample data.

7.

After the desired sample time has elapsed, turn off the
pump and unclip sampler from sampling location.

8.

Apply Post-use label to inlet plate to seal the
sampler.

9.

Record sample stop time on label on the bottom
of sampler.
8

10. Disconnect sampler from pump and reinstall
protective end cap to the exhaust.

10

11. Reinstate calibration train with representative
Disposable PPI and verify flow rate. See Calibration.

5

3

-6

Sample Transport and Analysis
Package and transport samples and blanks to an accredited laboratory for gravimetric
or chemical analysis.

References
Trakumas, S., Hall, P., Personal Respirable Sampler Containing Four Impactors Arranged in Parallel,
Abstracts of 23rd Annual AAAR Conference, Atlanta, GA, 2004, p. 78
Trakumas, S., Salter, E., “Parallel Particle Impactor - Novel Size-selective Particle Sampler for
Accurate Fractioning of Inhalable Particles,” Journal of Physics: Conference Series 151 (2009), 16 pp.,
012060, www.skcinc.com/instructions/Parallel Particle Impactor Paper.pdf
Reference 2 is an author-created, non-copyrighted version of an article accepted
for publication in the Journal of Physics; Conference Series 151. IOP Publishing Ltd.
is not responsible for any errors or omissions in this version of the manuscript
or any version derived from it. The definitive publisher authenticated version is
available online. Go to http://dx.doi.org, enter doi: 10.1088/1742-6596/151/1/012060.
Trakumas, S., “High-flow Personal Respirator Dust Sampler for Increased Sensitivity,” Poster 261,
AIHce 2010, Denver, CO
Trakumas, S., “High-flow Personal Sampler to Monitor Exposure to Respirable Crystalline Silica at
New Lower TLV,” IOHA 2010 8th Conference Book of Abstracts, Rome, p. 59
Trakumas, S., Salter, E., “High-Flow Personal Sampler to Monitor Exposure to Respirable Crystalline
Silica at New Lower TLV” PowerPoint Presentation
OSHA Final Rule on Respirable Crystalline Silica, www.osha.gov/silica/
ISO 7708:1995 (2008), Air Quality — Particle Size Fraction Definitions for Health-related Sampling,
www.iso.org, search on 7708
Stacey, P., Thorpe, A., and Echt, A., “Performance of High Flow Rate Personal Respirable Samplers
When Challenged with Mineral Aerosols of Different Particle Size Distributions,” Ann. Occup. Hyg.,
60, 2016, pp. 479-492, http://annhyg.oxfordjournals.org/content/60/4/479.full.pdf
Görner, P., Simon, X., Boivin, A., Bau, S., “Sampling Efficiency and Performance of Selected Thoracic
Aerosol Samplers,” Annals of Work Exposure and Health, 2017, Vol. 61, No. 7, 784-796

6

Ordering Information
Preloaded Disposable Plastic PPI Samplers, select the PPI for the
desired convention. Designed for one-time use
Preloaded Disposable PPI Samplers contain four porous plastic
disc impaction substrates, one 37-mm collection filter, and one 37-mm
cellulose support
Respirable PPI (red), 8 L/min, plastic, 5.0-μm PVC filter**
Respirable PPI (orange), 4 L/min, plastic, 5.0-μm PVC filter**
Respirable PPI (gold), 2 L/min, plastic, 5.0-μm PVC filter**
Thoracic PPI (blue), 2 L/min, plastic, 0.8-μm MCE filter
Thoracic PPI (blue), 2 L/min, plastic, Quartz filter
Accessory
Calibration Adapter for Disposable PPI

Cat. No.

225-3841
225-3871
225-3851
225-3861
225-3862
225-389

** PPIs 225-3841, 225-3871, and 225-3851 are preloaded with 5.0-μm PVC filter for chemical analysis. For gravimetric
analysis, contact your laboratory to pre and postweigh PVC filter.

For user-loaded disposable PPI for gravimetric
determinations or reusable aluminum PPI Samplers,
visit www.skcinc.com/prod/225-380.asp.

SKC Limited Warranty and Return Policy
SKC products are subject to the SKC Limited Warranty and Return Policy, which
provides SKC’s sole liability and the buyer’s exclusive remedy. To view the complete
SKC Limited Warranty and Return Policy, go to http://www.skcinc.com/warranty.asp.

7

www.skcinc.com

Form 38056 Rev 1708

8



---

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.6
Linearized                      : Yes
Encryption                      : Standard V4.4 (128-bit)
User Access                     : Print, Copy, Extract, Print high-res
Author                          : SKC Inc.
Create Date                     : 2017:08:31 16:20:24-04:00
Keywords                        : SKC Preloaded Disposable Parallel Particle Impactors (PPI) Cat. Nos. 225-3841, 225-3851, 225-3861, 225-3862, and 225-3871 Operating Instruction Form 38056 PDF Document
Modify Date                     : 2017:09:01 15:24:26-04:00
XMP Toolkit                     : Adobe XMP Core 5.2-c001 63.139439, 2010/09/27-13:37:26
Format                          : application/pdf
Creator                         : SKC Inc.
Title                           : SKC Preloaded Disposable Parallel Particle Impactors (PPI) Cat. Nos. 225-3841, 225-3851, 225-3861, 225-3862, and 225-3871 Operating Instruction Form 38056 PDF Document
Description                     : SKC Preloaded Disposable Parallel Particle Impactors (PPI) Cat. Nos. 225-3841, 225-3851, 225-3861, 225-3862, and 225-3871 Operating Instruction Form 38056 PDF Document
Subject                         : SKC Preloaded Disposable Parallel Particle Impactors (PPI) Cat. Nos. 225-3841, 225-3851, 225-3861, 225-3862, and 225-3871 Operating Instruction Form 38056 PDF Document
Creator Tool                    : PScript5.dll Version 5.2.2
Metadata Date                   : 2017:09:01 15:24:26-04:00
Producer                        : Acrobat Distiller 10.1.16 (Windows)
Document ID                     : uuid:0f7b41f1-38d9-4f54-90f5-5ed68cea2011
Instance ID                     : uuid:5152b4cb-b86a-4ef1-8e51-7de2170b4980
Page Count                      : 8

EXIF Metadata provided by EXIF.tools