Particle Size Cut Points; Figure 4-1. Cyclone D50 Curves - Thermo Scientific MIE ADR-1500 Instruction Manual

Calibration and Particle Size Selection
Particle Size Cut
The ADR-1500 has three different inlets to choose from Total Inlet, Red
Cyclone, and Blue Cyclone.
Points
The Total Inlet is a standard accessory for the ADR-1500 and is designed
for use as a total aerosol mass measurement. When operated in a flow range
of 1-2 L/min with a tared 37-mm 5-m PVC filter, NIOSH Method 0500
can be achieved in addition to the real-time measurements.
The Red Cyclone is an optional ACGIH-traceable cyclone that is used
primarily for establishing an aerodynamic diameter 50% cut point between
4 to 10 micrometers. When used at a flow rate of 2.65 L/min with a tared
37-mm 5-m PVC filter, NIOSH Method 0600 can be achieved in
addition to the real-time measurements.
The Blue Cyclone is an optional ACGIH-traceable cyclone that is used
primarily for establishing an aerodynamic diameter 50% cut point between
1 to 4 micrometers.
The Red and Blue Cyclones have the following 50% AED cut-point
characteristics shown in Figure 4–1.
Figure 4–1. Cyclone D50 Curves
Thermo Fisher Scientific MIE ADR-1500 Instruction Manual 4-5