1. 2025 Partisol Sequential Sampler Deborah Bowe Thermo Electron Corporation

2. 2 2025 Typical Installation

3. 3 2025 Routine Maintenance Filter cassettes: inspect damage or contamination Filter cassette magazines: Generally not necessary to clean, but if damaged certain parts can be replaced. WINS impactor: In accordance with USEPA guidelines for PM2.5 VSCC: In accordance with USEPA guidelines External leak check: Every 4 weeks of use PM10 Inlet: Every 14 days of use

4. 4 2025 Routine Maintenance Particle trap filter: inspect 6 months, replace as needed V seals: Check and clean as needed Rainhoods: Clean air screens 6 months Batteries: Check every 6 months replace as needed Pump: Check every 6 months and rebuild as needed average lifetime is 12 to 18 months.

5. 5 PM 10 Inlet Cleaning

6. 6 Very Sharp Cut Cyclone (VSCC) Inlet Cleaning

7. 7

8. 8 2025 Seals and O-Rings Seal Package PN: 59-005515 Adapter Seal and Lower Sampling Seal Upper Sampling Seal Inlet O-Rings and WINS Impactor Seals Exit Cylinder Seal (not included) PN: 22- 002959

9. 9 Partisol 2000 Single Channel FRM Sampler Deborah Bowe Thermo Electron Corporation

10. 10 Partisol 2000 Single Channel FRM Sampler Installed

11. 11 Routine Maintenance Clean cassettes: every use Upper & lower seals: every filter exchange External leak check: every 5 days of use Internal leak check: every 4 weeks or every month of use WINS cleaning: every 5 days of use PM 10 inlet cleaning: 14 days of use Large in-line filter: every 6 months of operation Air screens: every 6 months of operation Battery voltage: every six months