DPM Cassette With Impactor Cat. No. 225 317 Operating Instruction Form 40081 PDF

User Manual: 40081

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DPM Cassette with Impactor
Cat. No. 225-317
863 Valley View Road, Eighty Four, PA 15330 USA
Tel: 724-941-9701 E-mail: skctech@skcinc.com
www.skcinc.com
SKC Diesel Particulate Matter Cassettes are
designed for sampling in atmospheres where it
is necessary to separate DPM, carbon nanotubes
(CNTs), and carbon nanofibers (CNFs) from
other respirable dust (such as coal dust). Single-
use disposable SKC DPM Casse es are tamper-
evident sealed to ensure sample integrity. Each
streamlined plastic casse e comprises an impactor
with precision sapphire orifice, impaction
substrate, and two heat-treated quar lters. The
impactor screens out respirable particles 1.0 μm.
Particles less than 1.0 μm are collected on the rst
lter and the second lter serves as a dynamic
blank for correction of absorbed organic carbon.
Samples are analyzed for organic and elemental
carbon content of DPM per NIOSH Method 5040
or for CNTs and CNFs; see NIOSH CIB 65.
Performance Pro le
Casse e Size: 37 mm
Filter: Two heat-treated quar ber
with cellulose support pad
Filter Collection
Area: 8.04 cm2
Impactor: Four-nozzle, precision sapphire ori ces
Flow Rate: Calibrated at 1.7 and 2.0 L/min for sampling of submicron
particles
Analysis: For organic and elemental carbon using evolved gas analysis
(EGA) with thermal-optical analyzer (NIOSH 5040) and
electron microscopy (NIOSH CIB 65)
Sampling Equipment
The SKC DPM Casse e is designed for use with an appropriate sample pump and
cyclone that pre-selects non-respirable particles.* An SKC Universal XR or AirChek®
Series sample pump can provide the speci ed ow rate. Use SKC Casse e/Cyclone
Holder Cat. No. 225-1 to secure the casse e when used with the GS-1 Cyclone.
* A cyclone is not necessary in all sampling situations. It should be used in se ings where larger particulate is likely to clog
the impactor.
Inlet
Heat-treated
quartz lter
Outlet
Figure 1. Exploded view of
DPM Cassette
(Cat. No. 225-317)
Cassette
body
Operating Instructions
Plug
Plug
Support
pad
Heat-treated
quartz lter
Stainless steel ring
(de nes lter area)
Impactor
assembly
Setting Up the Sampling Train with Cyclone and Holder
1. Insert stem of GS-1 Cyclone into large hole in casse e holder.
2. Orient cyclone in holder until the small round nodule on the bowl adapter
rim ts into the notch in the casse e holder.
3. Remove inlet and outlet plugs from a DPM Casse e, pull back spring-loaded
hold-down plate on casse e holder, and gently push inlet of casse e onto
top of cyclone.
4. Position small hole in hold-down plate over casse e
outlet.
5. Insert Luer adapter on the holder's rubber tubing into
casse e outlet.
Figure 2. DPM Sampling Train with GS-1 Cyclone,
Cassette Holder, and Universal PCXR4 Pump
Setting Up the Sampling Train Without a Cyclone
1. Remove the plug from the outlet of the casse e (Figure 1).
2. A ach one end of a length of Tygon® tubing to the casse e outlet and the
other end to the inlet of an air sample pump capable of maintaining the
desired ow rate.
3. Secure the casse e on a worker by using a cable tie and collar clip.
4. Remove plug from the casse e inlet immediately before sampling.
AIRCHEK
SAMPLER
SAMPLE PERIOD — MINUTES
START
HOLD
FLOW
AND
BATTERY
CHECK
FLOW
ADJ
ON
5
4
3
2
1
AIRCHEK SAMPLER
MODEL 224-PCXR8
UL
®
LISTED 124U
SERIAL NO.
SKC INC.
EIGHTY FOUR PA 15330
WARNING - SUBSTITUTION OF
COMPONENTS MAY IMPAIR INTRIN
SIC SAFETY. USE ONLY UL LISTED
PORTABLE AIR SAMPLING PUMP
BATTERY PACK MODEL P21661
INTRINSICALLY SAFE
PORTABLE AIR SAMPLING PUMP
FOR USE IN HAZARDOUS LOCA
TIONS CLASS I, GROUPS A B C D
AND CLASS II, GROUPS E F G
AND CLASS III, TEMPERATURE
CODE T3C.
Calibration
1. Prepare a DPM Casse e or cyclone/DPM Casse e assembly. If using a
cyclone, ensure grit pot remains on cyclone body during calibration.
SKC recommends using the smallest calibration jar possible. To achieve
this, do NOT use Cassette Holder Cat. No. 225-1 during calibration.
2. Place DPM Casse e or
cyclone/DPM Casse e
assembly into an airtight
calibration jar that
contains an inlet and
outlet (SKC Cat. No.
225-111). See Figure 3.
3. Using exible tubing,
connect inlet of calibrator
to inlet of calibration jar.
4. Run tubing from outlet of DPM Casse e or cyclone/DPM Casse e assembly
through outlet of calibration jar and to the inlet of a sample pump. If using
the SKC Cat. No. 225-111 jar, connect the Luer adapter inside the jar to the
cyclone/casse e outlet. Connect jar outlet to inlet of a sample pump.
5. Turn on pump and calibrate to desired ow rate following directions in the
pump and calibrator operating instructions.
6. After calibration, disassemble calibration jar, remove the DPM Casse e
or cyclone/DPM Casse e assembly, and replace DPM Casse e used for
calibration with a fresh (unused) casse e to be used for sampling.
Sampling
1. Ensure pump is calibrated to the appropriate ow rate. See Calibration.
2. Turn on pump and sample for the appropriate time.
3. When sampling is completed, turn o the pump, remove the DPM Casse e
or cyclone/DPM Casse e assembly from the holder, remove the casse e from
the cyclone, and immediately plug both the inlet and outlet of the casse e
with the provided plugs.
Figure 3. Calibration Train with Jar
L/minute
0.000
Form 40081 Rev 1703
Shipping
Package the casse es for shipment to a laboratory for analysis.
Analysis
Total carbon represents more than 80% of DPM particulate emissions. NIOSH
5040 can be used to quantitatively determine the total carbon (organic and
elemental) content of the sample.
Ordering Information
Description Cat. No.
SKC DPM Cassette with Impactor, contains two 37-mm
heat-treated quartz lters, tamper-evident sealed, single
use, meets NIOSH 5040 speci cations, average sampler
deposition area is 8.04 cm2, pk/10
Limited shelf-life 225-317
SKC GS-1 Cyclone,* single inlet, 10 mm, conductive plastic 225-105
Filter Cassette/Cyclone Holder, for attaching a DPM or
standard lter cassette to a worker’s clothing in the breathing
zone. May be used with or without a cyclone, required when
using DPM Cassette with GS-1 Cyclone 225-1
Tubing, Collar Clip, and Cable Tie includes 3 feet of Tygon
tubing (1/4-inch ID) and alligator clip attached to a nylon cable tie 225-13-8
Multi-purpose Calibration Jar 225-111
* A cyclone should be used in se ings where larger particulate is likely to clog the impactor.
Requires 1/4-inch tubing for lter casse e/cyclone holder
SKC also o ers DPM casse es without impactors. For more information,
see www.skcinc.com/prod/225-317.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 h p://www.skcinc.com/warranty.asp.

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