ASTM F2100 / YY0469-2011 Bacterial Filtration Efficiency (BFE) Test System

ASTM F2100 / YY0469-2011 Bacterial Filtration Efficiency (BFE) Test System

Product No: WKS-1010

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    Description

    WKS-1010 Bacterial Filtration Efficiency (BFE) Test System quantifies the percentage of mask material filtration of bacterial aerosol particles under controlled flow conditions. This instrument is designed for compliance testing of medical surgical masks per ASTM F2100 “Standard Specification for Performance of Materials Used in Medical Face Masks” and YY0469-2011 standards, serving metrological inspection laboratories, research institutions, and medical device manufacturing quality control departments.

    Technical Specifications

    Parameter Range Resolution Accuracy
    Sampling Flow 28.3L/min 0.1L/min ±2.5%
    Spray Flow (8-10)L/min 0.1L/min ±2.5%
    Peristaltic Pump Flow (0.006-3.0)ml/min 0.001ml/min ±2.5%
    Flowmeter Front Pressure (-20-0)kPa 0.01kPa ±2.5%
    Spray Flowmeter Front Pressure (0-300)kPa 0.1kPa ±2.5%
    Ambient Temperature (-40-99)°C 0.1°C ±2.5%
    Aerosol Chamber Negative Pressure (-90-120)Pa 0.1Pa ±2.0%
    Cabinet Negative Pressure -50-200Pa – –

    System Configuration

    • Data Storage Capacity: >100,000 test records
    • Vortex Mixer Test Tubes: Φ16×150mm (8 units)
    • HEPA Filter Efficiency: ≥99.99% for particles >0.3μm
    • Aerosol Generator MMD: 3.0±0.3μm (GSD≤1.5)
    • 6-Grade Andersen Sampler Particle Capture Ranges:
      1. Grade I: >7μm
      2. Grade II: 4.7-7μm
      3. Grade III: 3.3-4.7μm
      4. Grade IV: 2.1-3.3μm
      5. Grade V: 1.1-2.1μm
      6. Grade VI: 0.6-1.1μm
    • Aerosol Chamber Dimensions: 60cm(L)×8.5cm(D)×3cm(T)
    • Positive Control Sampler Particle Count: 2200±500 CFU
    • Negative Pressure Cabinet Ventilation: ≥5m³/min
    • Negative Pressure Cabinet Dimensions: 755×400×990mm (W×D×H)
    • Main Unit Dimensions: 1200×630×2100mm (W×D×H)
    • Acoustic Noise Level: <65dB(A)
    • System Weight: Approximately 150kg
    • Power Requirements: AC220V±10%, 50Hz
    • Power Consumption: <1500W

    Key Features

    • Negative pressure experimental chamber design for operator safety
    • Integrated 6-stage Andersen impactor for particle size distribution analysis
    • Precision flow control systems with ±2.5% accuracy
    • Comprehensive data logging with >100,000 record capacity
    • HEPA filtration system with ≥99.99% efficiency for 0.3μm particles
    • Standard-compliant aerosol generation with 3.0±0.3μm MMD