LFY-227 Medical Mask Synthetic Blood Penetration Tester

Main purpose/Use 
This is used to measure the resistance of medical protective masks to the penetration of synthetic blood under different test pressures, and it can also be used to determine the blood penetration resistance of other coating materials. 
Instrument Characteristics 
The protruding-shaped sample fixation device can simulate the actual usage state of the mask, leaving the test target area without damaging the sample, and allowing the synthetic blood to distribute within the target area of the sample. 
2. A specially designed pressure-controlled jetting device can spray a certain volume of synthetic blood within the controlled period of time. 
3. It can fully simulate the spray velocities corresponding to the average blood pressures of 10.6 kPa, 16 kPa, and 21.3 kPa in the human body for testing. 
4. A fixed target plate is provided, which can block the high-pressure portion of the jetting liquid flow, allowing only the steady-state flow to spray onto the sample. This increases the accuracy and repeatability of the liquid velocity that is sprayed onto the sample. 
Technical indicators

Spray distance: Adjustable from 300mm to 305mm 
2. Spray nozzle diameter: 0.84mm 
3. Spray speed: 450 cm/s, 550 cm/s, 635 cm/s 
Applicable Standards 
GB 19083-2010 "Technical Requirements for Medical Protective Masks", 5.5 "Synthetic Blood Penetration Blocking Performance" 
YY/T 0691-2008 Infectious Pathogen Protection Equipment - Test Method for Medical Masks for Resistance to Synthetic Blood Penetration (Fixed Volume, Horizontal Spray) 
YY 0469-2011 Medical Surgical Masks Technical Requirements - Blood Penetration Test Apparatus 
ISO 22609:2004 Infectious Pathogen Protection Equipment - Method for Testing the Resistance of Medical Masks to Synthetic Blood Penetration (Fixed Volume, Horizontal Spray) 
ASTM F1862-07 Standard Test Method for Resistance of Medical Face Masks to Penetration by Synthetic Blood (Horizontal Projection of Fixed Volume at a Know Velocity)