Instruction Manual

Preloaded Coated Filters
Cat. No. 225-9006
SKC coated fi lters are shipped preloaded in the casse es with end plugs and
shrink bands in place. No assembly is required; they are ready to use.
Method & Chemical: NIOSH 6011 for bromine and chlorine
Filter & Coating: 0.5-μm PTFE pre-fi lter with porous plastic support pad and
a specially cleaned 0.45-μm silver membrane fi lter with porous plastic sup-
port pad. Three-piece 25-mm carbon-fi lled polypropylene casse e with cowl.
Closed-face sampling confi guration
Prior to Sampling: Store at 71.6 F (22 C) for up to one year.
Sample Stability: Store samples at 77 F (25 C) for up to 30 days or at ≤ 39.2 F
(4 C) for up to 60 days.
For information on other available
coated fi lters, request SKC Publication 1219.
Operating Instructions
863 Valley View Road, Eighty Four, PA 15330
Tel: [phone] Fax: [phone]
www.skcinc.com
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.
How to Use the SKC Preloaded Coated Filters
1. Select one coated fi lter casse e for calibrating the fl ow rate. A red plug
secures the inlet, which is clearly marked “inlet,” and a blue plug secures the
outlet. Set up the sampling train for calibration with the representative fi lter
casse e in line. For “closed-face” sampling, remove the plugs and connect the
casse e to the sampling train. For “open-face” sampling, remove the outlet
plug and the casse e inlet section then connect the casse e to the sampling
train. For details on se ing up a sampling train, refer to the SKC Sample Setup
Guide “Sampling Train - Filters and Cyclones” (SKC Publication 1166).
2. Calibrate the pump to the desired fl ow rate using a fi lm fl owmeter or
calibrated precision rotameter. For details on calibrating a pump, refer to the
SKC Sample Setup Guide “Calibrating a Pump Using a Film Flowmeter” (SKC
Publication 1163).
3. Replace the casse e used for calibration with a fresh coated fi lter casse e
for sample collection. Attach the cassette to a worker’s collar, as close to
the breathing zone as possible, by using a fi lter casse e holder (SKC Cat.
No. 225-1). Sample for the specifi ed time interval and record the time.
4. Remove the fi lter casse e at the end of the specifi ed sampling period and
replace both end plugs (and the inlet if necessary). Recheck the fl ow rate using
the same casse e and fl owmeter used for calibration (in Step 2) to ensure that
the fl ow rate has not changed by more than 5%.
5. See Sample Stability on reverse side for sample storage. Appropriately package
filter cassettes and ship the samples, blanks, and all pertinent data to a
laboratory for analysis.
Form 40035 Rev 1303