PM2.5 Sampling Procedures
For PM2.5 sampling the following changes must be made to the filter holder:

• Ensure that the multiple impactor adapter with the PM10 impactor (silver) is installed on top of the preseparator assembly, while the PM2.5 impactor (gold) is installed in the preseparator assembly.

• Clean and lubricate the EMT (Easy Maintenance Target) every 5 sampling periods. The EMT may need to be cleaned more or less frequently depending on the degree of soiling.

• After the sampler has been assembled, calibrated, verified to be in proper working order, and a filter loaded in the filter holder assembly, set flow rate adjustment in accordance with procedures as shown in the Operation Manual.

• Follow all other procedures in the Operation Manual, noting that PM2.5 is being sampled rather than PM10 and TSP.

» Back to Basic Operation Page