PQ100/200 WINDOWS Software
Updated April, 2004

VSCC and SCC Calculation Software
Download -- requires Microsoft Excel; updated November 24, 2002

BGI Gallery of Antique Air Sampling Instruments
New! December 1, 2001

Aerosol Calculation Software
Download -- requires Microsoft Excel; updated October 12, 2001

The PM2.5 Federal Reference Method (FRM)
Reprint of the April 2000 AS & T article

Products Manuals Online
Need to download a product manual? Check here. Updated November 2002

The Relationship between Pore Size and Filter Efficiency
Updated September 7, 1998

16.67 Lpm, PM-10 Inlets
Updated May 2002

Size Selective Sampling with the BGI4CP Cyclone

Table of Unit Density Spheres for use in Aerosol Physics
Updated April 28, 1999

BGI Company History