This silicone plug can be temporarily installed into the top of the nozzle inside the main funnel on a PM10 inlet during an air sampler leak test process.
This silicone plug can be temporarily installed into the top of the nozzle inside the main funnel on a PM10 inlet during an air sampler leak test process. This includes the PM10 inlet body, particle trap, and water collector in the test. Flow leaks at these points can allow particulate to bypass the impactor stage.