Method 201A Sampling System

High-Capacity In-Stack Particle Sizing for PM10 & PM2.5 Emissions

Overview

The Apex Instruments Method 201A Sampling System is designed for in-stack particle sizing applications, providing accurate determination of PM10 and PM2.5 emissions.

Unlike cascade impactors, Apex non-threaded cyclones offer higher particulate collection capacity—up to 10 grams per stage. This enables:
Larger sample collection for gravimetric and chemical analysis
Longer sampling times for more accurate averaging
Reduced reloading at each sample point

The Apex Cyclone System is also ideal for particle size research testing, offering precise and efficient performance.

Key Features & Specifications

  • Non-threaded cyclone assembly fastened with bolts for:
    • Enhanced stability
    • Easy repair compared to traditional threaded cyclones
  • Break-away assembly with expendable stainless-steel bolts:
    • Prevents seizing during sampling
    • Allows PM recovery without damaging cyclone flanges or contaminating the sample

The Method 201A Sampling System provides a superior alternative for in-stack particle sizing and emissions monitoring.