Scope of Application

【Operating Instructions】

Used for the rapid and accurate detection of the particulate protection efficiency of various flat and 3D masks. GB/T 32610-2016 "Technical specification for daily protective masks" – Section 6.14 Protection Effectiveness & Annex B Test method for particulate protection effectiveness.

YS-828 Particulate Protection Efficiency Tester

Scope of Application

Used for the rapid and accurate detection of the particulate protection efficiency of various flat and 3D masks.

Compliance Standards

• GB/T 32610-2016 "Technical specification for daily protective masks" – Section 6.14 Protection Effectiveness & Annex B Test method for particulate protection effectiveness.

• GB/T 38880-2020 "Technical specification for children's masks" and other related standards.

Instrument Features

1. Photometer Sensor: Uses a photometer sensor to detect upstream and downstream particle concentrations, ensuring sampling is accurate, stable, rapid, and effective.

2. Stable Flow System: The system test flow is mainly provided by external dry, clean compressed air. Internal pressure and flow stabilizers are installed to ensure flow stability, managed by a simple, quick, and stable automatic control system.

3. Collision Nozzle Design: Features a Collision multi-nozzle design, allowing both salt and oily particulate matter tests on the same instrument, ensuring rapid and stable aerosol concentration adjustment.

4. Child Headform Option: Can be equipped with an optional moving silicone headform for GB/T 38880-2020 children's mask testing.

5. Breathing Simulator: Configured with a breathing simulator that allows arbitrary setting of exhalation volume and breathing frequency.

Technical Specifications

1. Test Chamber Dimensions: Approx. (L × W × H): 600mm × 600mm × 560mm.

2. Test Medium: NaCl Particles:

• Initial Concentration: (20～30) mg/m³ in the effective space of the test chamber; variation during the test ≤ 10%.

• Aerodynamic Diameter Distribution: (0.02～2) μm.

• Mass Median Diameter (MMD): 0.6 μm.

3. Test Medium: DEHS:

• Initial Concentration: (20～30) mg/m³ in the effective space of the test chamber; variation during the test ≤ 10%.

• Aerodynamic Diameter Distribution: (0.02～2) μm.

• Mass Median Diameter (MMD): 0.3 μm.

4. Photometer Sensor:

• Gas Sampling Flow: (1～2) L/min.

• Detection Frequency: 60 times/min.

• Concentration Range & Accuracy: (0.001～100) mg/m³, Accuracy 1%.

• Inhalation Sampling Point: At the nostril area.

• Ambient Sampling Point: 2cm away from the mask mouth/nose area.

5. Headform: One standard headform included (Medium size).

6. Breathing Simulator:

• Waveform: Sine wave airflow.

• Breathing Frequency: (5～40) times/min.

• Breathing Flow: (5～80±1) L/min.

7. Power Supply: 220V, 50Hz, 1KW.

8. Air Source Requirement: 0.5MPa, 120L/Min.

9. Dimensions (L × W × H): 820mm × 840mm × 1260mm.

10. Weight: Main Unit 62kg / Protection Efficiency Test Module 34kg.