Bladewerx Speclon™ Filters

PTFE Membrane Filters

●  Speclon PTFE Membrane Filters (Polyester-backed)

●  Better CAM Sensitivity, Superior Surface Deposition

●  Lower False Alarms, Faster Alarm Response Times

●  Greatly Reduces Background from Radon Progeny

●  Custom Sizes and Shapes, Variety of Diameters

Bladewerx SpeclonTM PTFE-membrane filter media is recognized for its superior surface deposition characteristic, resulting in sharper energy resolution for alpha spectroscopy applications. Whether the application is continuous air monitoring, or personal/fixed air samplers with retrospective analysis, Bladewerx Speclon filters can provide a cost-effective alternative to glass fiber, cellulose, or acetate filters.

In alpha air monitoring for plutonium or transuranics, improved energy resolution means reduced background from interfering radon decay peaks. In many facilities, alpha air quality is determined retrospectively by gross counting after radon daughters have been decayed. By switching to Speclon filters, samples can be counted immediately using alpha spectroscopy, without waiting for radon products to decay, thereby improving worker safety.

High sensitivity alpha-in-air spectroscopy is dependent on spectrum resolution. Because of the excellent surface deposition qualities of the PTFE membrane filter, the full-width half-max (FWHM) alpha radiation peak resolution is significantly improved over glass fiber, cellulose or acetate filter media.  As a result of using the PTFE membrane filters in an alpha radiation CAM, the minimum detectable concentration can be improved by as much as 30% and allow either faster alarm response times or reduced false alarms.

Bladewerx offers Speclon PTFE membrane filters in a variety of sizes or shapes. Contact us for an estimate on unlisted diameters or pore sizes. 

PART NUMBERS

Speclon 5.0, 37 mm diameter, 5 µm pore, box 100: BSP-FILT-50B037

Speclon 5.0, 47 mm diameter, 5 µm pore, box 100: BSP-FILT-50B047

Speclon 1.5, 33.5 mm diameter, 1.5 µm pore, box 100: BSP-FILT-15B034

Speclon 1.5, 37 mm diameter, 1.5 µm pore, box 100: BSP-FILT-15B037

Other diameters and pore sizes available

Speclon 1.5

Pore Size: 1.5 μm

Air Flow @ 0.7 bar: 30 LPM/cm²

Thickness: 10 Mils

Backing: Polypropylene

Speclon 5.0

Pore Size: 5.0 μm

Air Flow @ 0.7 bar: 120 LPM/cm²

Thickness: 12 Mils

Backing: Polypropylene

Speclon Filter Data Sheet

Aerosol Collection Efficiency Measurements of the Speclon™ Filters

Evaluation of Filter Media for Alpha Continuous Air Monitoring Paper

Evaluation of Filter Media for Alpha Continuous Air Monitoring Presentation