Test items: Test the performance of synthetic blood penetration test DRK227 Medical Mask Synthetic Blood Penetration Tester has a special constant pressure spray device that can spray a certain volume of synthetic blood in a controlled time.   Technical Index: 1. The convex sample fixing device can simulate the actual use state of the mask, leaving the test target area without destroying the sample, and distributing the synthetic blood in the target area of ​​the sample. 2. The special constant pressure spray device can spray a certain volume of synthetic blood in a controlled time. 3. It can fully simulate the injection speed corresponding to the average human blood pressure of 10.6kPa, 16kPa, and 21.3kPa for testing. 4. It is equipped with a fixed target plate, which can block the high-pressure edge part of the sprayed liquid flow, and only let the steady-state flow part spray on the sample, which increases the accuracy and repeatability of the liquid velocity sprayed on the sample. Standards Compliant GB 19083-2010 Technical requirements for medical protective masks, 5.5 synthetic blood penetration barrier performance YY/T 0691-2008 Protective equipment for infectious pathogens Test method of resistance to penetration of synthetic blood for medical masks (fixed volume, horizontal jet) YY 0469-2011 Technical requirements for medical surgical masks Blood penetration test device ISO 22609:2004 Protective equipment for infectious pathogens-Test method for synthetic blood penetration resistance of medical masks (fixed volume, horizontal jet) 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) Technical Parameter 1. Spraying distance: 300mm～305mm adjustable 2. Nozzle diameter: 0.84mm 3. Jet speed: 450cm/s, 550cm/s, 635cm/s 4. Weight: 35kg 5. Power supply: AC220V 50Hz