BAM Glass Fiber Filter Tape Roll 60 Day Supply - 30mm x 21m Continuous Roll SKU: SF17933

The SF17933 is a continuous roll of glass fiber material specifically designed for Beta-ray Attenuation Monitoring (BAM) instruments used in ambient air quality monitoring. This 30mm x 21m roll provides a 60-day supply of filter media for EPA Federal Equivalent Method (FEM) designated continuous particulate monitors measuring PM2.5 and PM10 concentrations.

Beta Attenuation Monitoring Operation

BAM instruments operate by emitting beta rays through clean filter tape to establish a zero reading, then advancing the tape to collect ambient particles during sampling, and finally measuring the attenuation of beta rays through the particle-loaded filter to determine mass concentration. The glass fiber material provides consistent beta ray transmission properties essential for accurate mass measurements.

Key Specifications

• Dimensions: 30mm wide x 21m long continuous roll
• Supply duration: 60 days of continuous operation
• Material: Glass fiber optimized for beta attenuation measurements
• Core diameter: 40mm inside diameter

Compatible Instruments

This filter tape is designed for use in Met One BAM-1020 continuous PM2.5 and PM10 monitoring instruments and other EPA FEM designated beta attenuation monitors that specify glass fiber filter tape rolls. Compatible instruments include those operating at 16.67 liters/min sample flow rates with standard EPA PM10 inlets and particle size separators.

Maintenance and Installation

The continuous tape design allows for extended unattended operation with automatic hourly filter advancement. Each roll supports 60+ days of long-term unattended remote operation with hourly filter advances that minimize effects on volatile compounds. Replace the roll when the tape supply is exhausted or as part of scheduled maintenance procedures outlined in the instrument operation manual.

Regulatory Applications

This filter tape supports compliance monitoring under U.S. EPA Equivalent Method designations for PM10, PM2.5, and PM10-2.5 monitoring. FEM designated continuous monitors using this tape can be used to determine compliance with federal air quality standards, providing hourly temporal resolution data that is less labor intensive than filter-based methods.

For the corresponding 90-day supply option, see SF17934.