SKC 225-9019 Preloaded Coated Filters Instructions

: June 4, 2024
: SKC

Table of Contents

SKC 225-9019 Preloaded Coated Filters
Operating Instructions
How to Use SKC Preloaded Coated Filters
SKC Limited Warranty and Return Policy
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

SKC 225-9019 Preloaded Coated Filters

Operating Instructions

SKC coated filters are shipped preloaded in the cassettes with end plugs and shrink bands in place. No assembly is required; they are ready to use.

Method & Chemical: OSHA 81 for crotonaldehyde
Filter & Coating: 2 glass fiber filters treated with 2,4-dinitrophenylhydrazine and phosphoric acid. Three-piece 37-mm cassette. Open-face sampling configuration
Prior to Sampling: Store at ≤ 39.2 F (4 C) for up to 3 months.
Sample Stability: Store samples in the dark at -4 F(-20 C). Freezer storage and shipping required
For information on other available coated filters, go to www.skcinc.com.

How to Use SKC Preloaded Coated Filters

WARNING:
Ensure that the filter cassette is at room temperature before sampling.

Select one coated filter cassette for calibrating the flow 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 filter cassette in line. For “closed-face” sampling, remove the plugs and connect the cassette to the sampling train. For “open-face” sampling, remove the outlet plug and the cassette inlet section and then connect the cassette to the sampling train. For details on setting up a sampling train, refer to the SKC Sample Setup Guide “Sampling Train – Filters” at www.skcinc.com/knowledgecenter.
Calibrate the pump to the desired flow rate using a calibrator.
Replace the cassette used for calibration with a freshly coated filter cassette for sample collection. Attach the cassette to a worker’s collar, as close to the breathing zone as possible, by using a filter cassette holder SKC Cat. No. 225-1. Sample for the specified time interval and record the time.
Remove the filter cassette at the end of the specified sampling period and replace both end plugs (and the inlet if necessary). Recheck the flow rate using the same cassette and calibrator used for calibration in Step 2 to ensure that the flow rate has not changed by more than 5%.
Store samples at -4 F(-20 C). Appropriately package samples, blanks, and all pertinent data to send to a laboratory for analysis. Expedite the shipping of samples to the laboratory. Friday shipments are not recommended.

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 skcinc.com/warranty.