Medical Face Mask Bacterial Filtration Efficiency (BFE)Tester
Standards:
· NIOSH 42 CFR Part 84 NIOSH Respiratory User Notices 42 CFR Part 84 Respiratory Protective Devices. · EN 134 Respiratory protective devices - Nomenclature of components · JMOL Japan protective mask standard. · GB 19083 Technical requirement of medial protective mask. · GB2626 Self-priming filter type particle resistant respirator. · GB 32610 Technical specifications for daily protective masks
Applications:
Medical Face Mask Bacterial Filtration Efficiency (BFE)Tester-Suitable for professional filtration testing
Product Information:
Face Masks bacterial filtration efficiency BFE tester is to determine the bacterial filtration efficiency (BFE) of medical face mask materials by employing a ratio of the upstream bacterial challenge to downstream residual concentration of the tested medical face mask materials. The tester provides certain flow rate of bacterial aerosol. The operator can measure the number of colony forming units passing through the medical face mask material, which is clamped between a six-stage Anderson cascade impactor and an aerosol chamber, expressed as a percentage of the number of colony forming units present in the challenge aerosol.
Standards
EN 14683Medical face masks-Requirements and test methods.
ASTM F2101Standard Test Method for Evaluating the Bacterial Filtration Efficiency (BFE) of Medical Face Mask Materials, Using a Biological Aerosol of Staphylococcus aureus.
ASTM F2100Standard Specification for Performance of Materials Used in Medical Face Masks
YY 0469Technical requirements for surgical mask.
Features
- Double six-stage Anderson microbial sampler test systems with contrast sampling tests provide high accuracy.
- Internal aerosol generator provides stable and adjustable microbial aerosol flow. Internal pump can adjust the flow rate.
- Equipped negative pressure test chamber to ensure the safety of operators. Equipped light system to make the operations more clear and easy to do.
- 10.4 Inch touch screen control panel is easy to operate and supports USB data transmission.
- Equipped leakage protection and operating window provide better operating view and safety operating conditions.
- Stainless steel chamber with insulation and fire retardant lining is stable and reliable.
Specification
| Item | Detail |
| A Anderson sampler | 28.3l/min, 0.1l/min |
| Aerosol fluid | 8-10l/min, 0.1l/min |
| Pump | 0.006-3.0ml/min, 0.001ml/min |
| Pressure for A Anderson sampler | -20-0kPa,0.01kPa |
| Pressure for B Anderson sampler | -20-0kPa,0.01kPa |
| Pressure for chamber | -90–120kPa |
| Flow rate for ventilating | 5m3/min |
| HEPA filtration | ≥99.99% for particle over 0.3μm |
| Diameter for aerosol | 3.0±0.3μm |
| Capture diameter for Anderson sampler | Ⅰgrade >7μm，Ⅱgrade（4.7-7）μm， Ⅲgrade（3.3-4.7）μm，Ⅳgrade（2.1-3.3）μm， Ⅴgrade（1.1-2.1）μm，Ⅵgrade（0.6-1.1）μm |
| CFU | 2200±500cfu |
| Power supply | 220 AC 50Hz |
| Dimension | 1200mm×700mm×2200mm |
| Net weight | 210 kg |
